[v6,04/15] mtd: nand: raw: prefix conflicting names with nandcchip instead of nand

Message ID 1495609631-18880-5-git-send-email-peterpandong@micron.com
State New
Delegated to: Boris Brezillon
Headers show

Commit Message

Peter Pan 潘栋 (peterpandong) May 24, 2017, 7:07 a.m.
From: Boris Brezillon <boris.brezillon@free-electrons.com>

Some raw NAND function names conflict with names defined in nand.h.
Prefix all those functions with nandchip instead of nand so we can
include nand.h from rawnand.h

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Peter Pan <peterpandong@micron.com>
---
 Documentation/DocBook/mtdnand.tmpl               |  10 +-
 arch/arm/mach-ep93xx/snappercl15.c               |   4 +-
 arch/arm/mach-ep93xx/ts72xx.c                    |   4 +-
 arch/arm/mach-imx/mach-qong.c                    |   2 +-
 arch/arm/mach-ixp4xx/ixdp425-setup.c             |   2 +-
 arch/arm/mach-omap1/board-nand.c                 |   2 +-
 arch/arm/mach-orion5x/ts78xx-setup.c             |   6 +-
 arch/arm/mach-pxa/balloon3.c                     |   2 +-
 arch/arm/mach-pxa/em-x270.c                      |   2 +-
 arch/arm/mach-pxa/palmtx.c                       |   2 +-
 arch/blackfin/mach-bf537/boards/stamp.c          |   2 +-
 arch/blackfin/mach-bf561/boards/acvilon.c        |   2 +-
 arch/cris/arch-v32/drivers/mach-a3/nandflash.c   |   4 +-
 arch/cris/arch-v32/drivers/mach-fs/nandflash.c   |   4 +-
 arch/mips/alchemy/devboards/db1200.c             |   2 +-
 arch/mips/alchemy/devboards/db1300.c             |   2 +-
 arch/mips/alchemy/devboards/db1550.c             |   2 +-
 arch/mips/jz4740/board-qi_lb60.c                 |   2 +-
 arch/mips/pnx833x/common/platform.c              |   2 +-
 arch/mips/rb532/devices.c                        |   2 +-
 arch/sh/boards/mach-migor/setup.c                |   2 +-
 drivers/mtd/nand/raw/ams-delta.c                 |   8 +-
 drivers/mtd/nand/raw/atmel/nand-controller.c     |  50 ++++----
 drivers/mtd/nand/raw/au1550nd.c                  |  26 ++---
 drivers/mtd/nand/raw/bcm47xxnflash/main.c        |   4 +-
 drivers/mtd/nand/raw/bcm47xxnflash/ops_bcm4706.c |  18 +--
 drivers/mtd/nand/raw/bf5xx_nand.c                |  32 +++---
 drivers/mtd/nand/raw/brcmnand/brcmnand.c         |  32 +++---
 drivers/mtd/nand/raw/cafe_nand.c                 |  24 ++--
 drivers/mtd/nand/raw/cmx270_nand.c               |  12 +-
 drivers/mtd/nand/raw/cs553x_nand.c               |  20 ++--
 drivers/mtd/nand/raw/davinci_nand.c              |  14 +--
 drivers/mtd/nand/raw/denali.c                    |  14 +--
 drivers/mtd/nand/raw/diskonchip.c                |  68 +++++------
 drivers/mtd/nand/raw/docg4.c                     |  36 +++---
 drivers/mtd/nand/raw/fsl_elbc_nand.c             |  26 ++---
 drivers/mtd/nand/raw/fsl_ifc_nand.c              |  28 ++---
 drivers/mtd/nand/raw/fsl_upm.c                   |  12 +-
 drivers/mtd/nand/raw/fsmc_nand.c                 |  24 ++--
 drivers/mtd/nand/raw/gpio.c                      |   6 +-
 drivers/mtd/nand/raw/gpmi-nand/gpmi-lib.c        |   2 +-
 drivers/mtd/nand/raw/gpmi-nand/gpmi-nand.c       |  38 +++---
 drivers/mtd/nand/raw/hisi504_nand.c              |  24 ++--
 drivers/mtd/nand/raw/jz4740_nand.c               |  12 +-
 drivers/mtd/nand/raw/jz4780_nand.c               |   8 +-
 drivers/mtd/nand/raw/lpc32xx_mlc.c               |  16 +--
 drivers/mtd/nand/raw/lpc32xx_slc.c               |  20 ++--
 drivers/mtd/nand/raw/mpc5121_nfc.c               |  26 ++---
 drivers/mtd/nand/raw/mtk_nand.c                  |  38 +++---
 drivers/mtd/nand/raw/mxc_nand.c                  |  52 ++++-----
 drivers/mtd/nand/raw/nand_amd.c                  |   2 +-
 drivers/mtd/nand/raw/nand_base.c                 | 140 +++++++++++------------
 drivers/mtd/nand/raw/nand_bbt.c                  |  34 +++---
 drivers/mtd/nand/raw/nand_bch.c                  |   6 +-
 drivers/mtd/nand/raw/nand_ecc.c                  |   4 +-
 drivers/mtd/nand/raw/nand_hynix.c                |  10 +-
 drivers/mtd/nand/raw/nand_micron.c               |  10 +-
 drivers/mtd/nand/raw/nand_samsung.c              |   4 +-
 drivers/mtd/nand/raw/nand_toshiba.c              |   2 +-
 drivers/mtd/nand/raw/nandsim.c                   |  22 ++--
 drivers/mtd/nand/raw/ndfc.c                      |  18 +--
 drivers/mtd/nand/raw/nuc900_nand.c               |   8 +-
 drivers/mtd/nand/raw/omap2.c                     |  20 ++--
 drivers/mtd/nand/raw/orion_nand.c                |   8 +-
 drivers/mtd/nand/raw/oxnas_nand.c                |  12 +-
 drivers/mtd/nand/raw/pasemi_nand.c               |  10 +-
 drivers/mtd/nand/raw/plat_nand.c                 |   4 +-
 drivers/mtd/nand/raw/pxa3xx_nand.c               |  36 +++---
 drivers/mtd/nand/raw/qcom_nandc.c                |  28 ++---
 drivers/mtd/nand/raw/r852.c                      |   8 +-
 drivers/mtd/nand/raw/s3c2410.c                   |  16 +--
 drivers/mtd/nand/raw/sh_flctl.c                  |  10 +-
 drivers/mtd/nand/raw/sharpsl.c                   |   8 +-
 drivers/mtd/nand/raw/sm_common.c                 |   2 +-
 drivers/mtd/nand/raw/socrates_nand.c             |  12 +-
 drivers/mtd/nand/raw/sunxi_nand.c                |  58 +++++-----
 drivers/mtd/nand/raw/tango_nand.c                |  30 ++---
 drivers/mtd/nand/raw/tmio_nand.c                 |   8 +-
 drivers/mtd/nand/raw/txx9ndfmc.c                 |  14 +--
 drivers/mtd/nand/raw/vf610_nfc.c                 |   4 +-
 drivers/mtd/nand/raw/xway_nand.c                 |  10 +-
 drivers/staging/mt29f_spinand/mt29f_spinand.c    |   6 +-
 include/linux/mtd/rawnand.h                      |   4 +-
 include/linux/mtd/sh_flctl.h                     |   2 +-
 84 files changed, 661 insertions(+), 661 deletions(-)

Comments

Boris Brezillon May 29, 2017, 8:22 p.m. | #1
On Wed, 24 May 2017 15:07:00 +0800
Peter Pan <peterpandong@micron.com> wrote:

There's a typo in the commit title, it's nandchip not nandcchip.

> From: Boris Brezillon <boris.brezillon@free-electrons.com>
> 
> Some raw NAND function names conflict with names defined in nand.h.
> Prefix all those functions with nandchip instead of nand so we can
> include nand.h from rawnand.h
> 
> Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
> Signed-off-by: Peter Pan <peterpandong@micron.com>
> ---
>  Documentation/DocBook/mtdnand.tmpl               |  10 +-
>  arch/arm/mach-ep93xx/snappercl15.c               |   4 +-
>  arch/arm/mach-ep93xx/ts72xx.c                    |   4 +-
>  arch/arm/mach-imx/mach-qong.c                    |   2 +-
>  arch/arm/mach-ixp4xx/ixdp425-setup.c             |   2 +-
>  arch/arm/mach-omap1/board-nand.c                 |   2 +-
>  arch/arm/mach-orion5x/ts78xx-setup.c             |   6 +-
>  arch/arm/mach-pxa/balloon3.c                     |   2 +-
>  arch/arm/mach-pxa/em-x270.c                      |   2 +-
>  arch/arm/mach-pxa/palmtx.c                       |   2 +-
>  arch/blackfin/mach-bf537/boards/stamp.c          |   2 +-
>  arch/blackfin/mach-bf561/boards/acvilon.c        |   2 +-
>  arch/cris/arch-v32/drivers/mach-a3/nandflash.c   |   4 +-
>  arch/cris/arch-v32/drivers/mach-fs/nandflash.c   |   4 +-
>  arch/mips/alchemy/devboards/db1200.c             |   2 +-
>  arch/mips/alchemy/devboards/db1300.c             |   2 +-
>  arch/mips/alchemy/devboards/db1550.c             |   2 +-
>  arch/mips/jz4740/board-qi_lb60.c                 |   2 +-
>  arch/mips/pnx833x/common/platform.c              |   2 +-
>  arch/mips/rb532/devices.c                        |   2 +-
>  arch/sh/boards/mach-migor/setup.c                |   2 +-
>  drivers/mtd/nand/raw/ams-delta.c                 |   8 +-
>  drivers/mtd/nand/raw/atmel/nand-controller.c     |  50 ++++----
>  drivers/mtd/nand/raw/au1550nd.c                  |  26 ++---
>  drivers/mtd/nand/raw/bcm47xxnflash/main.c        |   4 +-
>  drivers/mtd/nand/raw/bcm47xxnflash/ops_bcm4706.c |  18 +--
>  drivers/mtd/nand/raw/bf5xx_nand.c                |  32 +++---
>  drivers/mtd/nand/raw/brcmnand/brcmnand.c         |  32 +++---
>  drivers/mtd/nand/raw/cafe_nand.c                 |  24 ++--
>  drivers/mtd/nand/raw/cmx270_nand.c               |  12 +-
>  drivers/mtd/nand/raw/cs553x_nand.c               |  20 ++--
>  drivers/mtd/nand/raw/davinci_nand.c              |  14 +--
>  drivers/mtd/nand/raw/denali.c                    |  14 +--
>  drivers/mtd/nand/raw/diskonchip.c                |  68 +++++------
>  drivers/mtd/nand/raw/docg4.c                     |  36 +++---
>  drivers/mtd/nand/raw/fsl_elbc_nand.c             |  26 ++---
>  drivers/mtd/nand/raw/fsl_ifc_nand.c              |  28 ++---
>  drivers/mtd/nand/raw/fsl_upm.c                   |  12 +-
>  drivers/mtd/nand/raw/fsmc_nand.c                 |  24 ++--
>  drivers/mtd/nand/raw/gpio.c                      |   6 +-
>  drivers/mtd/nand/raw/gpmi-nand/gpmi-lib.c        |   2 +-
>  drivers/mtd/nand/raw/gpmi-nand/gpmi-nand.c       |  38 +++---
>  drivers/mtd/nand/raw/hisi504_nand.c              |  24 ++--
>  drivers/mtd/nand/raw/jz4740_nand.c               |  12 +-
>  drivers/mtd/nand/raw/jz4780_nand.c               |   8 +-
>  drivers/mtd/nand/raw/lpc32xx_mlc.c               |  16 +--
>  drivers/mtd/nand/raw/lpc32xx_slc.c               |  20 ++--
>  drivers/mtd/nand/raw/mpc5121_nfc.c               |  26 ++---
>  drivers/mtd/nand/raw/mtk_nand.c                  |  38 +++---
>  drivers/mtd/nand/raw/mxc_nand.c                  |  52 ++++-----
>  drivers/mtd/nand/raw/nand_amd.c                  |   2 +-
>  drivers/mtd/nand/raw/nand_base.c                 | 140 +++++++++++------------
>  drivers/mtd/nand/raw/nand_bbt.c                  |  34 +++---
>  drivers/mtd/nand/raw/nand_bch.c                  |   6 +-
>  drivers/mtd/nand/raw/nand_ecc.c                  |   4 +-
>  drivers/mtd/nand/raw/nand_hynix.c                |  10 +-
>  drivers/mtd/nand/raw/nand_micron.c               |  10 +-
>  drivers/mtd/nand/raw/nand_samsung.c              |   4 +-
>  drivers/mtd/nand/raw/nand_toshiba.c              |   2 +-
>  drivers/mtd/nand/raw/nandsim.c                   |  22 ++--
>  drivers/mtd/nand/raw/ndfc.c                      |  18 +--
>  drivers/mtd/nand/raw/nuc900_nand.c               |   8 +-
>  drivers/mtd/nand/raw/omap2.c                     |  20 ++--
>  drivers/mtd/nand/raw/orion_nand.c                |   8 +-
>  drivers/mtd/nand/raw/oxnas_nand.c                |  12 +-
>  drivers/mtd/nand/raw/pasemi_nand.c               |  10 +-
>  drivers/mtd/nand/raw/plat_nand.c                 |   4 +-
>  drivers/mtd/nand/raw/pxa3xx_nand.c               |  36 +++---
>  drivers/mtd/nand/raw/qcom_nandc.c                |  28 ++---
>  drivers/mtd/nand/raw/r852.c                      |   8 +-
>  drivers/mtd/nand/raw/s3c2410.c                   |  16 +--
>  drivers/mtd/nand/raw/sh_flctl.c                  |  10 +-
>  drivers/mtd/nand/raw/sharpsl.c                   |   8 +-
>  drivers/mtd/nand/raw/sm_common.c                 |   2 +-
>  drivers/mtd/nand/raw/socrates_nand.c             |  12 +-
>  drivers/mtd/nand/raw/sunxi_nand.c                |  58 +++++-----
>  drivers/mtd/nand/raw/tango_nand.c                |  30 ++---
>  drivers/mtd/nand/raw/tmio_nand.c                 |   8 +-
>  drivers/mtd/nand/raw/txx9ndfmc.c                 |  14 +--
>  drivers/mtd/nand/raw/vf610_nfc.c                 |   4 +-
>  drivers/mtd/nand/raw/xway_nand.c                 |  10 +-
>  drivers/staging/mt29f_spinand/mt29f_spinand.c    |   6 +-
>  include/linux/mtd/rawnand.h                      |   4 +-
>  include/linux/mtd/sh_flctl.h                     |   2 +-
>  84 files changed, 661 insertions(+), 661 deletions(-)
> 
> diff --git a/Documentation/DocBook/mtdnand.tmpl b/Documentation/DocBook/mtdnand.tmpl
> index 35ec715..5a3342c 100644
> --- a/Documentation/DocBook/mtdnand.tmpl
> +++ b/Documentation/DocBook/mtdnand.tmpl
> @@ -169,7 +169,7 @@
>  			The NAND chip structure embeds an mtd structure
>  			which will be registered to the MTD subsystem.
>  			You can extract a pointer to the mtd structure
> -			from a nand_chip pointer using the nand_to_mtd()
> +			from a nand_chip pointer using the nandchip_to_mtd()
>  			helper.
>  		</para>
>  		<para>
> @@ -237,7 +237,7 @@ static void board_hwcontrol(struct mtd_info *mtd, int cmd)
>  		<programlisting>
>  static void board_hwcontrol(struct mtd_info *mtd, int cmd)
>  {
> -	struct nand_chip *this = mtd_to_nand(mtd);
> +	struct nand_chip *this = mtd_to_nandchip(mtd);
>  	switch(cmd){
>  		case NAND_CTL_SETCLE: this->IO_ADDR_W |= CLE_ADRR_BIT;  break;
>  		case NAND_CTL_CLRCLE: this->IO_ADDR_W &amp;= ~CLE_ADRR_BIT; break;
> @@ -283,7 +283,7 @@ static int __init board_init (void)
>  		goto out;
>  	}
>  
> -	board_mtd = nand_to_mtd(this);
> +	board_mtd = nandchip_to_mtd(this);
>  
>  	/* map physical address */
>  	baseaddr = ioremap(CHIP_PHYSICAL_ADDRESS, 1024);
> @@ -342,7 +342,7 @@ static void __exit board_cleanup (void)
>  	iounmap(baseaddr);
>  	
>  	/* Free the MTD device structure */
> -	kfree (mtd_to_nand(board_mtd));
> +	kfree (mtd_to_nandchip(board_mtd));
>  }
>  module_exit(board_cleanup);
>  #endif
> @@ -398,7 +398,7 @@ static void board_select_chip (struct mtd_info *mtd, int chip)
>  		<programlisting>
>  static void board_select_chip (struct mtd_info *mtd, int chip)
>  {
> -	struct nand_chip *this = mtd_to_nand(mtd);
> +	struct nand_chip *this = mtd_to_nandchip(mtd);
>  	
>  	/* Deselect all chips */
>  	this->IO_ADDR_R &amp;= ~BOARD_NAND_ADDR_MASK;
> diff --git a/arch/arm/mach-ep93xx/snappercl15.c b/arch/arm/mach-ep93xx/snappercl15.c
> index 8b29398..d6f6094 100644
> --- a/arch/arm/mach-ep93xx/snappercl15.c
> +++ b/arch/arm/mach-ep93xx/snappercl15.c
> @@ -49,7 +49,7 @@
>  static void snappercl15_nand_cmd_ctrl(struct mtd_info *mtd, int cmd,
>  				      unsigned int ctrl)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	static u16 nand_state = SNAPPERCL15_NAND_WPN;
>  	u16 set;
>  
> @@ -76,7 +76,7 @@ static void snappercl15_nand_cmd_ctrl(struct mtd_info *mtd, int cmd,
>  
>  static int snappercl15_nand_dev_ready(struct mtd_info *mtd)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  
>  	return !!(__raw_readw(NAND_CTRL_ADDR(chip)) & SNAPPERCL15_NAND_RDY);
>  }
> diff --git a/arch/arm/mach-ep93xx/ts72xx.c b/arch/arm/mach-ep93xx/ts72xx.c
> index 8745162..500ad463 100644
> --- a/arch/arm/mach-ep93xx/ts72xx.c
> +++ b/arch/arm/mach-ep93xx/ts72xx.c
> @@ -63,7 +63,7 @@ static void __init ts72xx_map_io(void)
>  static void ts72xx_nand_hwcontrol(struct mtd_info *mtd,
>  				  int cmd, unsigned int ctrl)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  
>  	if (ctrl & NAND_CTRL_CHANGE) {
>  		void __iomem *addr = chip->IO_ADDR_R;
> @@ -85,7 +85,7 @@ static void ts72xx_nand_hwcontrol(struct mtd_info *mtd,
>  
>  static int ts72xx_nand_device_ready(struct mtd_info *mtd)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	void __iomem *addr = chip->IO_ADDR_R;
>  
>  	addr += (1 << TS72XX_NAND_BUSY_ADDR_LINE);
> diff --git a/arch/arm/mach-imx/mach-qong.c b/arch/arm/mach-imx/mach-qong.c
> index 42a7000..eda2297 100644
> --- a/arch/arm/mach-imx/mach-qong.c
> +++ b/arch/arm/mach-imx/mach-qong.c
> @@ -131,7 +131,7 @@ static void qong_init_nor_mtd(void)
>   */
>  static void qong_nand_cmd_ctrl(struct mtd_info *mtd, int cmd, unsigned int ctrl)
>  {
> -	struct nand_chip *nand_chip = mtd_to_nand(mtd);
> +	struct nand_chip *nand_chip = mtd_to_nandchip(mtd);
>  
>  	if (cmd == NAND_CMD_NONE)
>  		return;
> diff --git a/arch/arm/mach-ixp4xx/ixdp425-setup.c b/arch/arm/mach-ixp4xx/ixdp425-setup.c
> index 93b89291..33a07c7 100644
> --- a/arch/arm/mach-ixp4xx/ixdp425-setup.c
> +++ b/arch/arm/mach-ixp4xx/ixdp425-setup.c
> @@ -76,7 +76,7 @@
>  static void
>  ixdp425_flash_nand_cmd_ctrl(struct mtd_info *mtd, int cmd, unsigned int ctrl)
>  {
> -	struct nand_chip *this = mtd_to_nand(mtd);
> +	struct nand_chip *this = mtd_to_nandchip(mtd);
>  	int offset = (int)nand_get_controller_data(this);
>  
>  	if (ctrl & NAND_CTRL_CHANGE) {
> diff --git a/arch/arm/mach-omap1/board-nand.c b/arch/arm/mach-omap1/board-nand.c
> index 1bffbb4..617848c 100644
> --- a/arch/arm/mach-omap1/board-nand.c
> +++ b/arch/arm/mach-omap1/board-nand.c
> @@ -22,7 +22,7 @@
>  
>  void omap1_nand_cmd_ctl(struct mtd_info *mtd, int cmd, unsigned int ctrl)
>  {
> -	struct nand_chip *this = mtd_to_nand(mtd);
> +	struct nand_chip *this = mtd_to_nandchip(mtd);
>  	unsigned long mask;
>  
>  	if (cmd == NAND_CMD_NONE)
> diff --git a/arch/arm/mach-orion5x/ts78xx-setup.c b/arch/arm/mach-orion5x/ts78xx-setup.c
> index 9477873..23c5a69 100644
> --- a/arch/arm/mach-orion5x/ts78xx-setup.c
> +++ b/arch/arm/mach-orion5x/ts78xx-setup.c
> @@ -134,7 +134,7 @@ static void ts78xx_ts_rtc_unload(void)
>  static void ts78xx_ts_nand_cmd_ctrl(struct mtd_info *mtd, int cmd,
>  			unsigned int ctrl)
>  {
> -	struct nand_chip *this = mtd_to_nand(mtd);
> +	struct nand_chip *this = mtd_to_nandchip(mtd);
>  
>  	if (ctrl & NAND_CTRL_CHANGE) {
>  		unsigned char bits;
> @@ -158,7 +158,7 @@ static int ts78xx_ts_nand_dev_ready(struct mtd_info *mtd)
>  static void ts78xx_ts_nand_write_buf(struct mtd_info *mtd,
>  			const uint8_t *buf, int len)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	void __iomem *io_base = chip->IO_ADDR_W;
>  	unsigned long off = ((unsigned long)buf & 3);
>  	int sz;
> @@ -185,7 +185,7 @@ static void ts78xx_ts_nand_write_buf(struct mtd_info *mtd,
>  static void ts78xx_ts_nand_read_buf(struct mtd_info *mtd,
>  			uint8_t *buf, int len)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	void __iomem *io_base = chip->IO_ADDR_R;
>  	unsigned long off = ((unsigned long)buf & 3);
>  	int sz;
> diff --git a/arch/arm/mach-pxa/balloon3.c b/arch/arm/mach-pxa/balloon3.c
> index 33d7ef1..ea06411 100644
> --- a/arch/arm/mach-pxa/balloon3.c
> +++ b/arch/arm/mach-pxa/balloon3.c
> @@ -573,7 +573,7 @@ static inline void balloon3_i2c_init(void) {}
>  #if defined(CONFIG_MTD_NAND_PLATFORM)||defined(CONFIG_MTD_NAND_PLATFORM_MODULE)
>  static void balloon3_nand_cmd_ctl(struct mtd_info *mtd, int cmd, unsigned int ctrl)
>  {
> -	struct nand_chip *this = mtd_to_nand(mtd);
> +	struct nand_chip *this = mtd_to_nandchip(mtd);
>  	uint8_t balloon3_ctl_set = 0, balloon3_ctl_clr = 0;
>  
>  	if (ctrl & NAND_CTRL_CHANGE) {
> diff --git a/arch/arm/mach-pxa/em-x270.c b/arch/arm/mach-pxa/em-x270.c
> index 6d28035..e072cc7 100644
> --- a/arch/arm/mach-pxa/em-x270.c
> +++ b/arch/arm/mach-pxa/em-x270.c
> @@ -288,7 +288,7 @@ static void nand_cs_off(void)
>  static void em_x270_nand_cmd_ctl(struct mtd_info *mtd, int dat,
>  				 unsigned int ctrl)
>  {
> -	struct nand_chip *this = mtd_to_nand(mtd);
> +	struct nand_chip *this = mtd_to_nandchip(mtd);
>  	unsigned long nandaddr = (unsigned long)this->IO_ADDR_W;
>  
>  	dsb();
> diff --git a/arch/arm/mach-pxa/palmtx.c b/arch/arm/mach-pxa/palmtx.c
> index 47e3e38..7422e06 100644
> --- a/arch/arm/mach-pxa/palmtx.c
> +++ b/arch/arm/mach-pxa/palmtx.c
> @@ -250,7 +250,7 @@ static inline void palmtx_keys_init(void) {}
>  static void palmtx_nand_cmd_ctl(struct mtd_info *mtd, int cmd,
>  				 unsigned int ctrl)
>  {
> -	struct nand_chip *this = mtd_to_nand(mtd);
> +	struct nand_chip *this = mtd_to_nandchip(mtd);
>  	char __iomem *nandaddr = this->IO_ADDR_W;
>  
>  	if (cmd == NAND_CMD_NONE)
> diff --git a/arch/blackfin/mach-bf537/boards/stamp.c b/arch/blackfin/mach-bf537/boards/stamp.c
> index ab3034f..af8e8be 100644
> --- a/arch/blackfin/mach-bf537/boards/stamp.c
> +++ b/arch/blackfin/mach-bf537/boards/stamp.c
> @@ -404,7 +404,7 @@ void sl811_port_power(struct device *dev, int is_on)
>  #define BFIN_NAND_PLAT_ALE 1
>  static void bfin_plat_nand_cmd_ctrl(struct mtd_info *mtd, int cmd, unsigned int ctrl)
>  {
> -	struct nand_chip *this = mtd_to_nand(mtd);
> +	struct nand_chip *this = mtd_to_nandchip(mtd);
>  
>  	if (cmd == NAND_CMD_NONE)
>  		return;
> diff --git a/arch/blackfin/mach-bf561/boards/acvilon.c b/arch/blackfin/mach-bf561/boards/acvilon.c
> index 696cc9d..763fa1f 100644
> --- a/arch/blackfin/mach-bf561/boards/acvilon.c
> +++ b/arch/blackfin/mach-bf561/boards/acvilon.c
> @@ -267,7 +267,7 @@ struct i2c_pca9564_pf_platform_data pca9564_platform_data = {
>  static void bfin_plat_nand_cmd_ctrl(struct mtd_info *mtd, int cmd,
>  				    unsigned int ctrl)
>  {
> -	struct nand_chip *this = mtd_to_nand(mtd);
> +	struct nand_chip *this = mtd_to_nandchip(mtd);
>  
>  	if (cmd == NAND_CMD_NONE)
>  		return;
> diff --git a/arch/cris/arch-v32/drivers/mach-a3/nandflash.c b/arch/cris/arch-v32/drivers/mach-a3/nandflash.c
> index 925a98e..eb22e7f 100644
> --- a/arch/cris/arch-v32/drivers/mach-a3/nandflash.c
> +++ b/arch/cris/arch-v32/drivers/mach-a3/nandflash.c
> @@ -51,7 +51,7 @@ static void crisv32_hwcontrol(struct mtd_info *mtd, int cmd,
>  {
>  	unsigned long flags;
>  	reg_pio_rw_dout dout;
> -	struct nand_chip *this = mtd_to_nand(mtd);
> +	struct nand_chip *this = mtd_to_nandchip(mtd);
>  
>  	local_irq_save(flags);
>  
> @@ -147,7 +147,7 @@ struct mtd_info *__init crisv32_nand_flash_probe(void)
>  
>  	/* Get pointer to private data */
>  	this = &wrapper->chip;
> -	crisv32_mtd = nand_to_mtd(this);
> +	crisv32_mtd = nandchip_to_mtd(this);
>  
>  	/* Set address of NAND IO lines */
>  	this->IO_ADDR_R = read_cs;
> diff --git a/arch/cris/arch-v32/drivers/mach-fs/nandflash.c b/arch/cris/arch-v32/drivers/mach-fs/nandflash.c
> index 53b56a4..0f24c31 100644
> --- a/arch/cris/arch-v32/drivers/mach-fs/nandflash.c
> +++ b/arch/cris/arch-v32/drivers/mach-fs/nandflash.c
> @@ -50,7 +50,7 @@ static void crisv32_hwcontrol(struct mtd_info *mtd, int cmd,
>  {
>  	unsigned long flags;
>  	reg_gio_rw_pa_dout dout;
> -	struct nand_chip *this = mtd_to_nand(mtd);
> +	struct nand_chip *this = mtd_to_nandchip(mtd);
>  
>  	local_irq_save(flags);
>  
> @@ -128,7 +128,7 @@ struct mtd_info *__init crisv32_nand_flash_probe(void)
>  
>  	/* Get pointer to private data */
>  	this = &wrapper->chip;
> -	crisv32_mtd = nand_to_mtd(this);
> +	crisv32_mtd = nandchip_to_mtd(this);
>  
>  	pa_oe.oe |= 1 << CE_BIT;
>  	pa_oe.oe |= 1 << ALE_BIT;
> diff --git a/arch/mips/alchemy/devboards/db1200.c b/arch/mips/alchemy/devboards/db1200.c
> index 8383100..c59401a 100644
> --- a/arch/mips/alchemy/devboards/db1200.c
> +++ b/arch/mips/alchemy/devboards/db1200.c
> @@ -200,7 +200,7 @@ int __init db1200_board_setup(void)
>  static void au1200_nand_cmd_ctrl(struct mtd_info *mtd, int cmd,
>  				 unsigned int ctrl)
>  {
> -	struct nand_chip *this = mtd_to_nand(mtd);
> +	struct nand_chip *this = mtd_to_nandchip(mtd);
>  	unsigned long ioaddr = (unsigned long)this->IO_ADDR_W;
>  
>  	ioaddr &= 0xffffff00;
> diff --git a/arch/mips/alchemy/devboards/db1300.c b/arch/mips/alchemy/devboards/db1300.c
> index 3e7fbdb..0fefa40 100644
> --- a/arch/mips/alchemy/devboards/db1300.c
> +++ b/arch/mips/alchemy/devboards/db1300.c
> @@ -151,7 +151,7 @@ static void __init db1300_gpio_config(void)
>  static void au1300_nand_cmd_ctrl(struct mtd_info *mtd, int cmd,
>  				 unsigned int ctrl)
>  {
> -	struct nand_chip *this = mtd_to_nand(mtd);
> +	struct nand_chip *this = mtd_to_nandchip(mtd);
>  	unsigned long ioaddr = (unsigned long)this->IO_ADDR_W;
>  
>  	ioaddr &= 0xffffff00;
> diff --git a/arch/mips/alchemy/devboards/db1550.c b/arch/mips/alchemy/devboards/db1550.c
> index 421bd57..28b7c33 100644
> --- a/arch/mips/alchemy/devboards/db1550.c
> +++ b/arch/mips/alchemy/devboards/db1550.c
> @@ -128,7 +128,7 @@ int __init db1550_board_setup(void)
>  static void au1550_nand_cmd_ctrl(struct mtd_info *mtd, int cmd,
>  				 unsigned int ctrl)
>  {
> -	struct nand_chip *this = mtd_to_nand(mtd);
> +	struct nand_chip *this = mtd_to_nandchip(mtd);
>  	unsigned long ioaddr = (unsigned long)this->IO_ADDR_W;
>  
>  	ioaddr &= 0xffffff00;
> diff --git a/arch/mips/jz4740/board-qi_lb60.c b/arch/mips/jz4740/board-qi_lb60.c
> index a5bd94b..712cf36 100644
> --- a/arch/mips/jz4740/board-qi_lb60.c
> +++ b/arch/mips/jz4740/board-qi_lb60.c
> @@ -138,7 +138,7 @@ static void qi_lb60_nand_ident(struct platform_device *pdev,
>  		struct mtd_info *mtd, struct mtd_partition **partitions,
>  		int *num_partitions)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  
>  	if (chip->page_shift == 12) {
>  		*partitions = qi_lb60_partitions_2gb;
> diff --git a/arch/mips/pnx833x/common/platform.c b/arch/mips/pnx833x/common/platform.c
> index a7a4e9f..4610f3f 100644
> --- a/arch/mips/pnx833x/common/platform.c
> +++ b/arch/mips/pnx833x/common/platform.c
> @@ -180,7 +180,7 @@ struct pnx8xxx_port pnx8xxx_ports[] = {
>  static void
>  pnx833x_flash_nand_cmd_ctrl(struct mtd_info *mtd, int cmd, unsigned int ctrl)
>  {
> -	struct nand_chip *this = mtd_to_nand(mtd);
> +	struct nand_chip *this = mtd_to_nandchip(mtd);
>  	unsigned long nandaddr = (unsigned long)this->IO_ADDR_W;
>  
>  	if (cmd == NAND_CMD_NONE)
> diff --git a/arch/mips/rb532/devices.c b/arch/mips/rb532/devices.c
> index 32ea3e6..b736745 100644
> --- a/arch/mips/rb532/devices.c
> +++ b/arch/mips/rb532/devices.c
> @@ -148,7 +148,7 @@ static int rb532_dev_ready(struct mtd_info *mtd)
>  
>  static void rb532_cmd_ctrl(struct mtd_info *mtd, int cmd, unsigned int ctrl)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	unsigned char orbits, nandbits;
>  
>  	if (ctrl & NAND_CTRL_CHANGE) {
> diff --git a/arch/sh/boards/mach-migor/setup.c b/arch/sh/boards/mach-migor/setup.c
> index 0bcbe58..be81869 100644
> --- a/arch/sh/boards/mach-migor/setup.c
> +++ b/arch/sh/boards/mach-migor/setup.c
> @@ -166,7 +166,7 @@
>  static void migor_nand_flash_cmd_ctl(struct mtd_info *mtd, int cmd,
>  				     unsigned int ctrl)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  
>  	if (cmd == NAND_CMD_NONE)
>  		return;
> diff --git a/drivers/mtd/nand/raw/ams-delta.c b/drivers/mtd/nand/raw/ams-delta.c
> index dcec9cf..be6166c 100644
> --- a/drivers/mtd/nand/raw/ams-delta.c
> +++ b/drivers/mtd/nand/raw/ams-delta.c
> @@ -64,7 +64,7 @@
>  
>  static void ams_delta_write_byte(struct mtd_info *mtd, u_char byte)
>  {
> -	struct nand_chip *this = mtd_to_nand(mtd);
> +	struct nand_chip *this = mtd_to_nandchip(mtd);
>  	void __iomem *io_base = (void __iomem *)nand_get_controller_data(this);
>  
>  	writew(0, io_base + OMAP_MPUIO_IO_CNTL);
> @@ -77,7 +77,7 @@ static void ams_delta_write_byte(struct mtd_info *mtd, u_char byte)
>  static u_char ams_delta_read_byte(struct mtd_info *mtd)
>  {
>  	u_char res;
> -	struct nand_chip *this = mtd_to_nand(mtd);
> +	struct nand_chip *this = mtd_to_nandchip(mtd);
>  	void __iomem *io_base = (void __iomem *)nand_get_controller_data(this);
>  
>  	gpio_set_value(AMS_DELTA_GPIO_PIN_NAND_NRE, 0);
> @@ -190,7 +190,7 @@ static int ams_delta_init(struct platform_device *pdev)
>  		goto out;
>  	}
>  
> -	ams_delta_mtd = nand_to_mtd(this);
> +	ams_delta_mtd = nandchip_to_mtd(this);
>  	ams_delta_mtd->owner = THIS_MODULE;
>  
>  	/*
> @@ -270,7 +270,7 @@ static int ams_delta_cleanup(struct platform_device *pdev)
>  	iounmap(io_base);
>  
>  	/* Free the MTD device structure */
> -	kfree(mtd_to_nand(ams_delta_mtd));
> +	kfree(mtd_to_nandchip(ams_delta_mtd));
>  
>  	return 0;
>  }
> diff --git a/drivers/mtd/nand/raw/atmel/nand-controller.c b/drivers/mtd/nand/raw/atmel/nand-controller.c
> index 9abfc5d..747bcd3 100644
> --- a/drivers/mtd/nand/raw/atmel/nand-controller.c
> +++ b/drivers/mtd/nand/raw/atmel/nand-controller.c
> @@ -403,7 +403,7 @@ static int atmel_nand_dma_transfer(struct atmel_nand_controller *nc,
>  
>  static u8 atmel_nand_read_byte(struct mtd_info *mtd)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	struct atmel_nand *nand = to_atmel_nand(chip);
>  
>  	return ioread8(nand->activecs->io.virt);
> @@ -411,7 +411,7 @@ static u8 atmel_nand_read_byte(struct mtd_info *mtd)
>  
>  static u16 atmel_nand_read_word(struct mtd_info *mtd)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	struct atmel_nand *nand = to_atmel_nand(chip);
>  
>  	return ioread16(nand->activecs->io.virt);
> @@ -419,7 +419,7 @@ static u16 atmel_nand_read_word(struct mtd_info *mtd)
>  
>  static void atmel_nand_write_byte(struct mtd_info *mtd, u8 byte)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	struct atmel_nand *nand = to_atmel_nand(chip);
>  
>  	if (chip->options & NAND_BUSWIDTH_16)
> @@ -430,7 +430,7 @@ static void atmel_nand_write_byte(struct mtd_info *mtd, u8 byte)
>  
>  static void atmel_nand_read_buf(struct mtd_info *mtd, u8 *buf, int len)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	struct atmel_nand *nand = to_atmel_nand(chip);
>  	struct atmel_nand_controller *nc;
>  
> @@ -455,7 +455,7 @@ static void atmel_nand_read_buf(struct mtd_info *mtd, u8 *buf, int len)
>  
>  static void atmel_nand_write_buf(struct mtd_info *mtd, const u8 *buf, int len)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	struct atmel_nand *nand = to_atmel_nand(chip);
>  	struct atmel_nand_controller *nc;
>  
> @@ -480,7 +480,7 @@ static void atmel_nand_write_buf(struct mtd_info *mtd, const u8 *buf, int len)
>  
>  static int atmel_nand_dev_ready(struct mtd_info *mtd)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	struct atmel_nand *nand = to_atmel_nand(chip);
>  
>  	return gpiod_get_value(nand->activecs->rb.gpio);
> @@ -488,7 +488,7 @@ static int atmel_nand_dev_ready(struct mtd_info *mtd)
>  
>  static void atmel_nand_select_chip(struct mtd_info *mtd, int cs)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	struct atmel_nand *nand = to_atmel_nand(chip);
>  
>  	if (cs < 0 || cs >= nand->numcs) {
> @@ -505,7 +505,7 @@ static void atmel_nand_select_chip(struct mtd_info *mtd, int cs)
>  
>  static int atmel_hsmc_nand_dev_ready(struct mtd_info *mtd)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	struct atmel_nand *nand = to_atmel_nand(chip);
>  	struct atmel_hsmc_nand_controller *nc;
>  	u32 status;
> @@ -519,7 +519,7 @@ static int atmel_hsmc_nand_dev_ready(struct mtd_info *mtd)
>  
>  static void atmel_hsmc_nand_select_chip(struct mtd_info *mtd, int cs)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	struct atmel_nand *nand = to_atmel_nand(chip);
>  	struct atmel_hsmc_nand_controller *nc;
>  
> @@ -601,7 +601,7 @@ static int atmel_nfc_exec_op(struct atmel_hsmc_nand_controller *nc, bool poll)
>  static void atmel_hsmc_nand_cmd_ctrl(struct mtd_info *mtd, int dat,
>  				     unsigned int ctrl)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	struct atmel_nand *nand = to_atmel_nand(chip);
>  	struct atmel_hsmc_nand_controller *nc;
>  
> @@ -628,7 +628,7 @@ static void atmel_hsmc_nand_cmd_ctrl(struct mtd_info *mtd, int dat,
>  static void atmel_nand_cmd_ctrl(struct mtd_info *mtd, int cmd,
>  				unsigned int ctrl)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	struct atmel_nand *nand = to_atmel_nand(chip);
>  	struct atmel_nand_controller *nc;
>  
> @@ -650,7 +650,7 @@ static void atmel_nand_cmd_ctrl(struct mtd_info *mtd, int cmd,
>  static void atmel_nfc_copy_to_sram(struct nand_chip *chip, const u8 *buf,
>  				   bool oob_required)
>  {
> -	struct mtd_info *mtd = nand_to_mtd(chip);
> +	struct mtd_info *mtd = nandchip_to_mtd(chip);
>  	struct atmel_hsmc_nand_controller *nc;
>  	int ret = -EIO;
>  
> @@ -673,7 +673,7 @@ static void atmel_nfc_copy_to_sram(struct nand_chip *chip, const u8 *buf,
>  static void atmel_nfc_copy_from_sram(struct nand_chip *chip, u8 *buf,
>  				     bool oob_required)
>  {
> -	struct mtd_info *mtd = nand_to_mtd(chip);
> +	struct mtd_info *mtd = nandchip_to_mtd(chip);
>  	struct atmel_hsmc_nand_controller *nc;
>  	int ret = -EIO;
>  
> @@ -694,7 +694,7 @@ static void atmel_nfc_copy_from_sram(struct nand_chip *chip, u8 *buf,
>  
>  static void atmel_nfc_set_op_addr(struct nand_chip *chip, int page, int column)
>  {
> -	struct mtd_info *mtd = nand_to_mtd(chip);
> +	struct mtd_info *mtd = nandchip_to_mtd(chip);
>  	struct atmel_hsmc_nand_controller *nc;
>  
>  	nc = to_hsmc_nand_controller(chip->controller);
> @@ -749,7 +749,7 @@ static void atmel_nand_pmecc_disable(struct nand_chip *chip, bool raw)
>  static int atmel_nand_pmecc_generate_eccbytes(struct nand_chip *chip, bool raw)
>  {
>  	struct atmel_nand *nand = to_atmel_nand(chip);
> -	struct mtd_info *mtd = nand_to_mtd(chip);
> +	struct mtd_info *mtd = nandchip_to_mtd(chip);
>  	struct atmel_nand_controller *nc;
>  	struct mtd_oob_region oobregion;
>  	void *eccbuf;
> @@ -784,7 +784,7 @@ static int atmel_nand_pmecc_correct_data(struct nand_chip *chip, void *buf,
>  					 bool raw)
>  {
>  	struct atmel_nand *nand = to_atmel_nand(chip);
> -	struct mtd_info *mtd = nand_to_mtd(chip);
> +	struct mtd_info *mtd = nandchip_to_mtd(chip);
>  	struct atmel_nand_controller *nc;
>  	struct mtd_oob_region oobregion;
>  	int ret, i, max_bitflips = 0;
> @@ -833,7 +833,7 @@ static int atmel_nand_pmecc_correct_data(struct nand_chip *chip, void *buf,
>  static int atmel_nand_pmecc_write_pg(struct nand_chip *chip, const u8 *buf,
>  				     bool oob_required, int page, bool raw)
>  {
> -	struct mtd_info *mtd = nand_to_mtd(chip);
> +	struct mtd_info *mtd = nandchip_to_mtd(chip);
>  	struct atmel_nand *nand = to_atmel_nand(chip);
>  	int ret;
>  
> @@ -874,7 +874,7 @@ static int atmel_nand_pmecc_write_page_raw(struct mtd_info *mtd,
>  static int atmel_nand_pmecc_read_pg(struct nand_chip *chip, u8 *buf,
>  				    bool oob_required, int page, bool raw)
>  {
> -	struct mtd_info *mtd = nand_to_mtd(chip);
> +	struct mtd_info *mtd = nandchip_to_mtd(chip);
>  	int ret;
>  
>  	ret = atmel_nand_pmecc_enable(chip, NAND_ECC_READ, raw);
> @@ -909,7 +909,7 @@ static int atmel_hsmc_nand_pmecc_write_pg(struct nand_chip *chip,
>  					  const u8 *buf, bool oob_required,
>  					  int page, bool raw)
>  {
> -	struct mtd_info *mtd = nand_to_mtd(chip);
> +	struct mtd_info *mtd = nandchip_to_mtd(chip);
>  	struct atmel_nand *nand = to_atmel_nand(chip);
>  	struct atmel_hsmc_nand_controller *nc;
>  	int ret;
> @@ -979,7 +979,7 @@ static int atmel_hsmc_nand_pmecc_read_pg(struct nand_chip *chip, u8 *buf,
>  					 bool oob_required, int page,
>  					 bool raw)
>  {
> -	struct mtd_info *mtd = nand_to_mtd(chip);
> +	struct mtd_info *mtd = nandchip_to_mtd(chip);
>  	struct atmel_nand *nand = to_atmel_nand(chip);
>  	struct atmel_hsmc_nand_controller *nc;
>  	int ret;
> @@ -1048,7 +1048,7 @@ static int atmel_hsmc_nand_pmecc_read_page_raw(struct mtd_info *mtd,
>  
>  static int atmel_nand_pmecc_init(struct nand_chip *chip)
>  {
> -	struct mtd_info *mtd = nand_to_mtd(chip);
> +	struct mtd_info *mtd = nandchip_to_mtd(chip);
>  	struct atmel_nand *nand = to_atmel_nand(chip);
>  	struct atmel_nand_controller *nc;
>  	struct atmel_pmecc_user_req req;
> @@ -1179,7 +1179,7 @@ static void atmel_nand_init(struct atmel_nand_controller *nc,
>  			    struct atmel_nand *nand)
>  {
>  	struct nand_chip *chip = &nand->base;
> -	struct mtd_info *mtd = nand_to_mtd(chip);
> +	struct mtd_info *mtd = nandchip_to_mtd(chip);
>  
>  	mtd->dev.parent = nc->dev;
>  	nand->base.controller = &nc->base;
> @@ -1241,7 +1241,7 @@ static void atmel_hsmc_nand_init(struct atmel_nand_controller *nc,
>  static int atmel_nand_detect(struct atmel_nand *nand)
>  {
>  	struct nand_chip *chip = &nand->base;
> -	struct mtd_info *mtd = nand_to_mtd(chip);
> +	struct mtd_info *mtd = nandchip_to_mtd(chip);
>  	struct atmel_nand_controller *nc;
>  	int ret;
>  
> @@ -1257,7 +1257,7 @@ static int atmel_nand_detect(struct atmel_nand *nand)
>  static int atmel_nand_unregister(struct atmel_nand *nand)
>  {
>  	struct nand_chip *chip = &nand->base;
> -	struct mtd_info *mtd = nand_to_mtd(chip);
> +	struct mtd_info *mtd = nandchip_to_mtd(chip);
>  	int ret;
>  
>  	ret = mtd_device_unregister(mtd);
> @@ -1273,7 +1273,7 @@ static int atmel_nand_unregister(struct atmel_nand *nand)
>  static int atmel_nand_register(struct atmel_nand *nand)
>  {
>  	struct nand_chip *chip = &nand->base;
> -	struct mtd_info *mtd = nand_to_mtd(chip);
> +	struct mtd_info *mtd = nandchip_to_mtd(chip);
>  	struct atmel_nand_controller *nc;
>  	int ret;
>  
> diff --git a/drivers/mtd/nand/raw/au1550nd.c b/drivers/mtd/nand/raw/au1550nd.c
> index 9d4a28f..f56ce91 100644
> --- a/drivers/mtd/nand/raw/au1550nd.c
> +++ b/drivers/mtd/nand/raw/au1550nd.c
> @@ -38,7 +38,7 @@ struct au1550nd_ctx {
>   */
>  static u_char au_read_byte(struct mtd_info *mtd)
>  {
> -	struct nand_chip *this = mtd_to_nand(mtd);
> +	struct nand_chip *this = mtd_to_nandchip(mtd);
>  	u_char ret = readb(this->IO_ADDR_R);
>  	wmb(); /* drain writebuffer */
>  	return ret;
> @@ -53,7 +53,7 @@ static u_char au_read_byte(struct mtd_info *mtd)
>   */
>  static void au_write_byte(struct mtd_info *mtd, u_char byte)
>  {
> -	struct nand_chip *this = mtd_to_nand(mtd);
> +	struct nand_chip *this = mtd_to_nandchip(mtd);
>  	writeb(byte, this->IO_ADDR_W);
>  	wmb(); /* drain writebuffer */
>  }
> @@ -66,7 +66,7 @@ static void au_write_byte(struct mtd_info *mtd, u_char byte)
>   */
>  static u_char au_read_byte16(struct mtd_info *mtd)
>  {
> -	struct nand_chip *this = mtd_to_nand(mtd);
> +	struct nand_chip *this = mtd_to_nandchip(mtd);
>  	u_char ret = (u_char) cpu_to_le16(readw(this->IO_ADDR_R));
>  	wmb(); /* drain writebuffer */
>  	return ret;
> @@ -81,7 +81,7 @@ static u_char au_read_byte16(struct mtd_info *mtd)
>   */
>  static void au_write_byte16(struct mtd_info *mtd, u_char byte)
>  {
> -	struct nand_chip *this = mtd_to_nand(mtd);
> +	struct nand_chip *this = mtd_to_nandchip(mtd);
>  	writew(le16_to_cpu((u16) byte), this->IO_ADDR_W);
>  	wmb(); /* drain writebuffer */
>  }
> @@ -94,7 +94,7 @@ static void au_write_byte16(struct mtd_info *mtd, u_char byte)
>   */
>  static u16 au_read_word(struct mtd_info *mtd)
>  {
> -	struct nand_chip *this = mtd_to_nand(mtd);
> +	struct nand_chip *this = mtd_to_nandchip(mtd);
>  	u16 ret = readw(this->IO_ADDR_R);
>  	wmb(); /* drain writebuffer */
>  	return ret;
> @@ -111,7 +111,7 @@ static u16 au_read_word(struct mtd_info *mtd)
>  static void au_write_buf(struct mtd_info *mtd, const u_char *buf, int len)
>  {
>  	int i;
> -	struct nand_chip *this = mtd_to_nand(mtd);
> +	struct nand_chip *this = mtd_to_nandchip(mtd);
>  
>  	for (i = 0; i < len; i++) {
>  		writeb(buf[i], this->IO_ADDR_W);
> @@ -130,7 +130,7 @@ static void au_write_buf(struct mtd_info *mtd, const u_char *buf, int len)
>  static void au_read_buf(struct mtd_info *mtd, u_char *buf, int len)
>  {
>  	int i;
> -	struct nand_chip *this = mtd_to_nand(mtd);
> +	struct nand_chip *this = mtd_to_nandchip(mtd);
>  
>  	for (i = 0; i < len; i++) {
>  		buf[i] = readb(this->IO_ADDR_R);
> @@ -149,7 +149,7 @@ static void au_read_buf(struct mtd_info *mtd, u_char *buf, int len)
>  static void au_write_buf16(struct mtd_info *mtd, const u_char *buf, int len)
>  {
>  	int i;
> -	struct nand_chip *this = mtd_to_nand(mtd);
> +	struct nand_chip *this = mtd_to_nandchip(mtd);
>  	u16 *p = (u16 *) buf;
>  	len >>= 1;
>  
> @@ -171,7 +171,7 @@ static void au_write_buf16(struct mtd_info *mtd, const u_char *buf, int len)
>  static void au_read_buf16(struct mtd_info *mtd, u_char *buf, int len)
>  {
>  	int i;
> -	struct nand_chip *this = mtd_to_nand(mtd);
> +	struct nand_chip *this = mtd_to_nandchip(mtd);
>  	u16 *p = (u16 *) buf;
>  	len >>= 1;
>  
> @@ -196,7 +196,7 @@ static void au_read_buf16(struct mtd_info *mtd, u_char *buf, int len)
>  
>  static void au1550_hwcontrol(struct mtd_info *mtd, int cmd)
>  {
> -	struct nand_chip *this = mtd_to_nand(mtd);
> +	struct nand_chip *this = mtd_to_nandchip(mtd);
>  	struct au1550nd_ctx *ctx = container_of(this, struct au1550nd_ctx,
>  						chip);
>  
> @@ -267,7 +267,7 @@ static void au1550_select_chip(struct mtd_info *mtd, int chip)
>   */
>  static void au1550_command(struct mtd_info *mtd, unsigned command, int column, int page_addr)
>  {
> -	struct nand_chip *this = mtd_to_nand(mtd);
> +	struct nand_chip *this = mtd_to_nandchip(mtd);
>  	struct au1550nd_ctx *ctx = container_of(this, struct au1550nd_ctx,
>  						chip);
>  	int ce_override = 0, i;
> @@ -440,7 +440,7 @@ static int au1550nd_probe(struct platform_device *pdev)
>  	}
>  
>  	this = &ctx->chip;
> -	mtd = nand_to_mtd(this);
> +	mtd = nandchip_to_mtd(this);
>  	mtd->dev.parent = &pdev->dev;
>  
>  	/* figure out which CS# r->start belongs to */
> @@ -496,7 +496,7 @@ static int au1550nd_remove(struct platform_device *pdev)
>  	struct au1550nd_ctx *ctx = platform_get_drvdata(pdev);
>  	struct resource *r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
>  
> -	nand_release(nand_to_mtd(&ctx->chip));
> +	nand_release(nandchip_to_mtd(&ctx->chip));
>  	iounmap(ctx->base);
>  	release_mem_region(r->start, 0x1000);
>  	kfree(ctx);
> diff --git a/drivers/mtd/nand/raw/bcm47xxnflash/main.c b/drivers/mtd/nand/raw/bcm47xxnflash/main.c
> index fb31429..564b53a 100644
> --- a/drivers/mtd/nand/raw/bcm47xxnflash/main.c
> +++ b/drivers/mtd/nand/raw/bcm47xxnflash/main.c
> @@ -35,7 +35,7 @@ static int bcm47xxnflash_probe(struct platform_device *pdev)
>  		return -ENOMEM;
>  
>  	nand_set_controller_data(&b47n->nand_chip, b47n);
> -	mtd = nand_to_mtd(&b47n->nand_chip);
> +	mtd = nandchip_to_mtd(&b47n->nand_chip);
>  	mtd->dev.parent = &pdev->dev;
>  	b47n->cc = container_of(nflash, struct bcma_drv_cc, nflash);
>  
> @@ -65,7 +65,7 @@ static int bcm47xxnflash_remove(struct platform_device *pdev)
>  {
>  	struct bcm47xxnflash *nflash = platform_get_drvdata(pdev);
>  
> -	nand_release(nand_to_mtd(&nflash->nand_chip));
> +	nand_release(nandchip_to_mtd(&nflash->nand_chip));
>  
>  	return 0;
>  }
> diff --git a/drivers/mtd/nand/raw/bcm47xxnflash/ops_bcm4706.c b/drivers/mtd/nand/raw/bcm47xxnflash/ops_bcm4706.c
> index f1da4ea..78bfcdb 100644
> --- a/drivers/mtd/nand/raw/bcm47xxnflash/ops_bcm4706.c
> +++ b/drivers/mtd/nand/raw/bcm47xxnflash/ops_bcm4706.c
> @@ -89,7 +89,7 @@ static int bcm47xxnflash_ops_bcm4706_poll(struct bcma_drv_cc *cc)
>  static void bcm47xxnflash_ops_bcm4706_read(struct mtd_info *mtd, uint8_t *buf,
>  					   int len)
>  {
> -	struct nand_chip *nand_chip = mtd_to_nand(mtd);
> +	struct nand_chip *nand_chip = mtd_to_nandchip(mtd);
>  	struct bcm47xxnflash *b47n = nand_get_controller_data(nand_chip);
>  
>  	u32 ctlcode;
> @@ -139,7 +139,7 @@ static void bcm47xxnflash_ops_bcm4706_read(struct mtd_info *mtd, uint8_t *buf,
>  static void bcm47xxnflash_ops_bcm4706_write(struct mtd_info *mtd,
>  					    const uint8_t *buf, int len)
>  {
> -	struct nand_chip *nand_chip = mtd_to_nand(mtd);
> +	struct nand_chip *nand_chip = mtd_to_nandchip(mtd);
>  	struct bcm47xxnflash *b47n = nand_get_controller_data(nand_chip);
>  	struct bcma_drv_cc *cc = b47n->cc;
>  
> @@ -173,7 +173,7 @@ static void bcm47xxnflash_ops_bcm4706_write(struct mtd_info *mtd,
>  static void bcm47xxnflash_ops_bcm4706_cmd_ctrl(struct mtd_info *mtd, int cmd,
>  					       unsigned int ctrl)
>  {
> -	struct nand_chip *nand_chip = mtd_to_nand(mtd);
> +	struct nand_chip *nand_chip = mtd_to_nandchip(mtd);
>  	struct bcm47xxnflash *b47n = nand_get_controller_data(nand_chip);
>  	u32 code = 0;
>  
> @@ -199,7 +199,7 @@ static void bcm47xxnflash_ops_bcm4706_select_chip(struct mtd_info *mtd,
>  
>  static int bcm47xxnflash_ops_bcm4706_dev_ready(struct mtd_info *mtd)
>  {
> -	struct nand_chip *nand_chip = mtd_to_nand(mtd);
> +	struct nand_chip *nand_chip = mtd_to_nandchip(mtd);
>  	struct bcm47xxnflash *b47n = nand_get_controller_data(nand_chip);
>  
>  	return !!(bcma_cc_read32(b47n->cc, BCMA_CC_NFLASH_CTL) & NCTL_READY);
> @@ -216,7 +216,7 @@ static void bcm47xxnflash_ops_bcm4706_cmdfunc(struct mtd_info *mtd,
>  					      unsigned command, int column,
>  					      int page_addr)
>  {
> -	struct nand_chip *nand_chip = mtd_to_nand(mtd);
> +	struct nand_chip *nand_chip = mtd_to_nandchip(mtd);
>  	struct bcm47xxnflash *b47n = nand_get_controller_data(nand_chip);
>  	struct bcma_drv_cc *cc = b47n->cc;
>  	u32 ctlcode;
> @@ -312,7 +312,7 @@ static void bcm47xxnflash_ops_bcm4706_cmdfunc(struct mtd_info *mtd,
>  
>  static u8 bcm47xxnflash_ops_bcm4706_read_byte(struct mtd_info *mtd)
>  {
> -	struct nand_chip *nand_chip = mtd_to_nand(mtd);
> +	struct nand_chip *nand_chip = mtd_to_nandchip(mtd);
>  	struct bcm47xxnflash *b47n = nand_get_controller_data(nand_chip);
>  	struct bcma_drv_cc *cc = b47n->cc;
>  	u32 tmp = 0;
> @@ -341,7 +341,7 @@ static u8 bcm47xxnflash_ops_bcm4706_read_byte(struct mtd_info *mtd)
>  static void bcm47xxnflash_ops_bcm4706_read_buf(struct mtd_info *mtd,
>  					       uint8_t *buf, int len)
>  {
> -	struct nand_chip *nand_chip = mtd_to_nand(mtd);
> +	struct nand_chip *nand_chip = mtd_to_nandchip(mtd);
>  	struct bcm47xxnflash *b47n = nand_get_controller_data(nand_chip);
>  
>  	switch (b47n->curr_command) {
> @@ -357,7 +357,7 @@ static void bcm47xxnflash_ops_bcm4706_read_buf(struct mtd_info *mtd,
>  static void bcm47xxnflash_ops_bcm4706_write_buf(struct mtd_info *mtd,
>  						const uint8_t *buf, int len)
>  {
> -	struct nand_chip *nand_chip = mtd_to_nand(mtd);
> +	struct nand_chip *nand_chip = mtd_to_nandchip(mtd);
>  	struct bcm47xxnflash *b47n = nand_get_controller_data(nand_chip);
>  
>  	switch (b47n->curr_command) {
> @@ -421,7 +421,7 @@ int bcm47xxnflash_ops_bcm4706_init(struct bcm47xxnflash *b47n)
>  			(w4 << 24 | w3 << 18 | w2 << 12 | w1 << 6 | w0));
>  
>  	/* Scan NAND */
> -	err = nand_scan(nand_to_mtd(&b47n->nand_chip), 1);
> +	err = nand_scan(nandchip_to_mtd(&b47n->nand_chip), 1);
>  	if (err) {
>  		pr_err("Could not scan NAND flash: %d\n", err);
>  		goto exit;
> diff --git a/drivers/mtd/nand/raw/bf5xx_nand.c b/drivers/mtd/nand/raw/bf5xx_nand.c
> index 5655dca..790dbf6 100644
> --- a/drivers/mtd/nand/raw/bf5xx_nand.c
> +++ b/drivers/mtd/nand/raw/bf5xx_nand.c
> @@ -162,9 +162,9 @@ struct bf5xx_nand_info {
>  /*
>   * Conversion functions
>   */
> -static struct bf5xx_nand_info *mtd_to_nand_info(struct mtd_info *mtd)
> +static struct bf5xx_nand_info *mtd_to_nandchip_info(struct mtd_info *mtd)
>  {
> -	return container_of(mtd_to_nand(mtd), struct bf5xx_nand_info,
> +	return container_of(mtd_to_nandchip(mtd), struct bf5xx_nand_info,
>  			    chip);
>  }
>  
> @@ -230,7 +230,7 @@ static int bf5xx_nand_devready(struct mtd_info *mtd)
>  static int bf5xx_nand_correct_data_256(struct mtd_info *mtd, u_char *dat,
>  					u_char *read_ecc, u_char *calc_ecc)
>  {
> -	struct bf5xx_nand_info *info = mtd_to_nand_info(mtd);
> +	struct bf5xx_nand_info *info = mtd_to_nandchip_info(mtd);
>  	u32 syndrome[5];
>  	u32 calced, stored;
>  	int i;
> @@ -309,7 +309,7 @@ static int bf5xx_nand_correct_data_256(struct mtd_info *mtd, u_char *dat,
>  static int bf5xx_nand_correct_data(struct mtd_info *mtd, u_char *dat,
>  					u_char *read_ecc, u_char *calc_ecc)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	int ret, bitflips = 0;
>  
>  	ret = bf5xx_nand_correct_data_256(mtd, dat, read_ecc, calc_ecc);
> @@ -341,8 +341,8 @@ static void bf5xx_nand_enable_hwecc(struct mtd_info *mtd, int mode)
>  static int bf5xx_nand_calculate_ecc(struct mtd_info *mtd,
>  		const u_char *dat, u_char *ecc_code)
>  {
> -	struct bf5xx_nand_info *info = mtd_to_nand_info(mtd);
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct bf5xx_nand_info *info = mtd_to_nandchip_info(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	u16 ecc0, ecc1;
>  	u32 code[2];
>  	u8 *p;
> @@ -478,8 +478,8 @@ static irqreturn_t bf5xx_nand_dma_irq(int irq, void *dev_id)
>  static void bf5xx_nand_dma_rw(struct mtd_info *mtd,
>  				uint8_t *buf, int is_read)
>  {
> -	struct bf5xx_nand_info *info = mtd_to_nand_info(mtd);
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct bf5xx_nand_info *info = mtd_to_nandchip_info(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	unsigned short val;
>  
>  	dev_dbg(info->device, " mtd->%p, buf->%p, is_read %d\n",
> @@ -544,8 +544,8 @@ static void bf5xx_nand_dma_rw(struct mtd_info *mtd,
>  static void bf5xx_nand_dma_read_buf(struct mtd_info *mtd,
>  					uint8_t *buf, int len)
>  {
> -	struct bf5xx_nand_info *info = mtd_to_nand_info(mtd);
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct bf5xx_nand_info *info = mtd_to_nandchip_info(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  
>  	dev_dbg(info->device, "mtd->%p, buf->%p, int %d\n", mtd, buf, len);
>  
> @@ -558,8 +558,8 @@ static void bf5xx_nand_dma_read_buf(struct mtd_info *mtd,
>  static void bf5xx_nand_dma_write_buf(struct mtd_info *mtd,
>  				const uint8_t *buf, int len)
>  {
> -	struct bf5xx_nand_info *info = mtd_to_nand_info(mtd);
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct bf5xx_nand_info *info = mtd_to_nandchip_info(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  
>  	dev_dbg(info->device, "mtd->%p, buf->%p, len %d\n", mtd, buf, len);
>  
> @@ -673,7 +673,7 @@ static int bf5xx_nand_hw_init(struct bf5xx_nand_info *info)
>   */
>  static int bf5xx_nand_add_partition(struct bf5xx_nand_info *info)
>  {
> -	struct mtd_info *mtd = nand_to_mtd(&info->chip);
> +	struct mtd_info *mtd = nandchip_to_mtd(&info->chip);
>  	struct mtd_partition *parts = info->platform->partitions;
>  	int nr = info->platform->nr_partitions;
>  
> @@ -688,7 +688,7 @@ static int bf5xx_nand_remove(struct platform_device *pdev)
>  	 * and their partitions, then go through freeing the
>  	 * resources used
>  	 */
> -	nand_release(nand_to_mtd(&info->chip));
> +	nand_release(nandchip_to_mtd(&info->chip));
>  
>  	peripheral_free_list(bfin_nfc_pin_req);
>  	bf5xx_nand_dma_remove(info);
> @@ -698,7 +698,7 @@ static int bf5xx_nand_remove(struct platform_device *pdev)
>  
>  static int bf5xx_nand_scan(struct mtd_info *mtd)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	int ret;
>  
>  	ret = nand_scan_ident(mtd, 1, NULL);
> @@ -768,7 +768,7 @@ static int bf5xx_nand_probe(struct platform_device *pdev)
>  
>  	/* initialise chip data struct */
>  	chip = &info->chip;
> -	mtd = nand_to_mtd(&info->chip);
> +	mtd = nandchip_to_mtd(&info->chip);
>  
>  	if (plat->data_width)
>  		chip->options |= NAND_BUSWIDTH_16;
> diff --git a/drivers/mtd/nand/raw/brcmnand/brcmnand.c b/drivers/mtd/nand/raw/brcmnand/brcmnand.c
> index e0eb51d..c3c22ba 100644
> --- a/drivers/mtd/nand/raw/brcmnand/brcmnand.c
> +++ b/drivers/mtd/nand/raw/brcmnand/brcmnand.c
> @@ -872,7 +872,7 @@ static inline bool is_hamming_ecc(struct brcmnand_controller *ctrl,
>  static int brcmnand_hamming_ooblayout_ecc(struct mtd_info *mtd, int section,
>  					  struct mtd_oob_region *oobregion)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	struct brcmnand_host *host = nand_get_controller_data(chip);
>  	struct brcmnand_cfg *cfg = &host->hwcfg;
>  	int sas = cfg->spare_area_size << cfg->sector_size_1k;
> @@ -890,7 +890,7 @@ static int brcmnand_hamming_ooblayout_ecc(struct mtd_info *mtd, int section,
>  static int brcmnand_hamming_ooblayout_free(struct mtd_info *mtd, int section,
>  					   struct mtd_oob_region *oobregion)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	struct brcmnand_host *host = nand_get_controller_data(chip);
>  	struct brcmnand_cfg *cfg = &host->hwcfg;
>  	int sas = cfg->spare_area_size << cfg->sector_size_1k;
> @@ -930,7 +930,7 @@ static int brcmnand_hamming_ooblayout_free(struct mtd_info *mtd, int section,
>  static int brcmnand_bch_ooblayout_ecc(struct mtd_info *mtd, int section,
>  				      struct mtd_oob_region *oobregion)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	struct brcmnand_host *host = nand_get_controller_data(chip);
>  	struct brcmnand_cfg *cfg = &host->hwcfg;
>  	int sas = cfg->spare_area_size << cfg->sector_size_1k;
> @@ -948,7 +948,7 @@ static int brcmnand_bch_ooblayout_ecc(struct mtd_info *mtd, int section,
>  static int brcmnand_bch_ooblayout_free_lp(struct mtd_info *mtd, int section,
>  					  struct mtd_oob_region *oobregion)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	struct brcmnand_host *host = nand_get_controller_data(chip);
>  	struct brcmnand_cfg *cfg = &host->hwcfg;
>  	int sas = cfg->spare_area_size << cfg->sector_size_1k;
> @@ -974,7 +974,7 @@ static int brcmnand_bch_ooblayout_free_lp(struct mtd_info *mtd, int section,
>  static int brcmnand_bch_ooblayout_free_sp(struct mtd_info *mtd, int section,
>  					  struct mtd_oob_region *oobregion)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	struct brcmnand_host *host = nand_get_controller_data(chip);
>  	struct brcmnand_cfg *cfg = &host->hwcfg;
>  	int sas = cfg->spare_area_size << cfg->sector_size_1k;
> @@ -1007,7 +1007,7 @@ static int brcmnand_bch_ooblayout_free_sp(struct mtd_info *mtd, int section,
>  static int brcmstb_choose_ecc_layout(struct brcmnand_host *host)
>  {
>  	struct brcmnand_cfg *p = &host->hwcfg;
> -	struct mtd_info *mtd = nand_to_mtd(&host->chip);
> +	struct mtd_info *mtd = nandchip_to_mtd(&host->chip);
>  	struct nand_ecc_ctrl *ecc = &host->chip.ecc;
>  	unsigned int ecc_level = p->ecc_level;
>  	int sas = p->spare_area_size << p->sector_size_1k;
> @@ -1046,7 +1046,7 @@ static int brcmstb_choose_ecc_layout(struct brcmnand_host *host)
>  
>  static void brcmnand_wp(struct mtd_info *mtd, int wp)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	struct brcmnand_host *host = nand_get_controller_data(chip);
>  	struct brcmnand_controller *ctrl = host->ctrl;
>  
> @@ -1239,7 +1239,7 @@ static void brcmnand_cmd_ctrl(struct mtd_info *mtd, int dat,
>  
>  static int brcmnand_waitfunc(struct mtd_info *mtd, struct nand_chip *this)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	struct brcmnand_host *host = nand_get_controller_data(chip);
>  	struct brcmnand_controller *ctrl = host->ctrl;
>  	unsigned long timeo = msecs_to_jiffies(100);
> @@ -1274,7 +1274,7 @@ static int brcmnand_low_level_op(struct brcmnand_host *host,
>  				 enum brcmnand_llop_type type, u32 data,
>  				 bool last_op)
>  {
> -	struct mtd_info *mtd = nand_to_mtd(&host->chip);
> +	struct mtd_info *mtd = nandchip_to_mtd(&host->chip);
>  	struct nand_chip *chip = &host->chip;
>  	struct brcmnand_controller *ctrl = host->ctrl;
>  	u32 tmp;
> @@ -1313,7 +1313,7 @@ static int brcmnand_low_level_op(struct brcmnand_host *host,
>  static void brcmnand_cmdfunc(struct mtd_info *mtd, unsigned command,
>  			     int column, int page_addr)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	struct brcmnand_host *host = nand_get_controller_data(chip);
>  	struct brcmnand_controller *ctrl = host->ctrl;
>  	u64 addr = (u64)page_addr << chip->page_shift;
> @@ -1419,7 +1419,7 @@ static void brcmnand_cmdfunc(struct mtd_info *mtd, unsigned command,
>  
>  static uint8_t brcmnand_read_byte(struct mtd_info *mtd)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	struct brcmnand_host *host = nand_get_controller_data(chip);
>  	struct brcmnand_controller *ctrl = host->ctrl;
>  	uint8_t ret = 0;
> @@ -1486,7 +1486,7 @@ static void brcmnand_write_buf(struct mtd_info *mtd, const uint8_t *buf,
>  				   int len)
>  {
>  	int i;
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	struct brcmnand_host *host = nand_get_controller_data(chip);
>  
>  	switch (host->last_cmd) {
> @@ -2083,7 +2083,7 @@ static inline int get_blk_adr_bytes(u64 size, u32 writesize)
>  
>  static int brcmnand_setup_dev(struct brcmnand_host *host)
>  {
> -	struct mtd_info *mtd = nand_to_mtd(&host->chip);
> +	struct mtd_info *mtd = nandchip_to_mtd(&host->chip);
>  	struct nand_chip *chip = &host->chip;
>  	struct brcmnand_controller *ctrl = host->ctrl;
>  	struct brcmnand_cfg *cfg = &host->hwcfg;
> @@ -2223,7 +2223,7 @@ static int brcmnand_init_cs(struct brcmnand_host *host, struct device_node *dn)
>  		return -ENXIO;
>  	}
>  
> -	mtd = nand_to_mtd(&host->chip);
> +	mtd = nandchip_to_mtd(&host->chip);
>  	chip = &host->chip;
>  
>  	nand_set_flash_node(chip, dn);
> @@ -2369,7 +2369,7 @@ static int brcmnand_resume(struct device *dev)
>  
>  	list_for_each_entry(host, &ctrl->host_list, node) {
>  		struct nand_chip *chip = &host->chip;
> -		struct mtd_info *mtd = nand_to_mtd(chip);
> +		struct mtd_info *mtd = nandchip_to_mtd(chip);
>  
>  		brcmnand_save_restore_cs_config(host, 1);
>  
> @@ -2601,7 +2601,7 @@ int brcmnand_remove(struct platform_device *pdev)
>  	struct brcmnand_host *host;
>  
>  	list_for_each_entry(host, &ctrl->host_list, node)
> -		nand_release(nand_to_mtd(&host->chip));
> +		nand_release(nandchip_to_mtd(&host->chip));
>  
>  	clk_disable_unprepare(ctrl->clk);
>  
> diff --git a/drivers/mtd/nand/raw/cafe_nand.c b/drivers/mtd/nand/raw/cafe_nand.c
> index 0541c64..7b4bf88 100644
> --- a/drivers/mtd/nand/raw/cafe_nand.c
> +++ b/drivers/mtd/nand/raw/cafe_nand.c
> @@ -101,7 +101,7 @@ struct cafe_priv {
>  
>  static int cafe_device_ready(struct mtd_info *mtd)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	struct cafe_priv *cafe = nand_get_controller_data(chip);
>  	int result = !!(cafe_readl(cafe, NAND_STATUS) & 0x40000000);
>  	uint32_t irqs = cafe_readl(cafe, NAND_IRQ);
> @@ -118,7 +118,7 @@ static int cafe_device_ready(struct mtd_info *mtd)
>  
>  static void cafe_write_buf(struct mtd_info *mtd, const uint8_t *buf, int len)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	struct cafe_priv *cafe = nand_get_controller_data(chip);
>  
>  	if (usedma)
> @@ -134,7 +134,7 @@ static void cafe_write_buf(struct mtd_info *mtd, const uint8_t *buf, int len)
>  
>  static void cafe_read_buf(struct mtd_info *mtd, uint8_t *buf, int len)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	struct cafe_priv *cafe = nand_get_controller_data(chip);
>  
>  	if (usedma)
> @@ -149,7 +149,7 @@ static void cafe_read_buf(struct mtd_info *mtd, uint8_t *buf, int len)
>  
>  static uint8_t cafe_read_byte(struct mtd_info *mtd)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	struct cafe_priv *cafe = nand_get_controller_data(chip);
>  	uint8_t d;
>  
> @@ -162,7 +162,7 @@ static uint8_t cafe_read_byte(struct mtd_info *mtd)
>  static void cafe_nand_cmdfunc(struct mtd_info *mtd, unsigned command,
>  			      int column, int page_addr)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	struct cafe_priv *cafe = nand_get_controller_data(chip);
>  	int adrbytes = 0;
>  	uint32_t ctl1;
> @@ -318,7 +318,7 @@ static void cafe_nand_cmdfunc(struct mtd_info *mtd, unsigned command,
>  
>  static void cafe_select_chip(struct mtd_info *mtd, int chipnr)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	struct cafe_priv *cafe = nand_get_controller_data(chip);
>  
>  	cafe_dev_dbg(&cafe->pdev->dev, "select_chip %d\n", chipnr);
> @@ -334,7 +334,7 @@ static void cafe_select_chip(struct mtd_info *mtd, int chipnr)
>  static irqreturn_t cafe_nand_interrupt(int irq, void *id)
>  {
>  	struct mtd_info *mtd = id;
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	struct cafe_priv *cafe = nand_get_controller_data(chip);
>  	uint32_t irqs = cafe_readl(cafe, NAND_IRQ);
>  	cafe_writel(cafe, irqs & ~0x90000000, NAND_IRQ);
> @@ -462,7 +462,7 @@ static int cafe_nand_read_page(struct mtd_info *mtd, struct nand_chip *chip,
>  static int cafe_ooblayout_ecc(struct mtd_info *mtd, int section,
>  			      struct mtd_oob_region *oobregion)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  
>  	if (section)
>  		return -ERANGE;
> @@ -476,7 +476,7 @@ static int cafe_ooblayout_ecc(struct mtd_info *mtd, int section,
>  static int cafe_ooblayout_free(struct mtd_info *mtd, int section,
>  			       struct mtd_oob_region *oobregion)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  
>  	if (section)
>  		return -ERANGE;
> @@ -630,7 +630,7 @@ static int cafe_nand_probe(struct pci_dev *pdev,
>  	if (!cafe)
>  		return  -ENOMEM;
>  
> -	mtd = nand_to_mtd(&cafe->nand);
> +	mtd = nandchip_to_mtd(&cafe->nand);
>  	mtd->dev.parent = &pdev->dev;
>  	nand_set_controller_data(&cafe->nand, cafe);
>  
> @@ -818,7 +818,7 @@ static int cafe_nand_probe(struct pci_dev *pdev,
>  static void cafe_nand_remove(struct pci_dev *pdev)
>  {
>  	struct mtd_info *mtd = pci_get_drvdata(pdev);
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	struct cafe_priv *cafe = nand_get_controller_data(chip);
>  
>  	/* Disable NAND IRQ in global IRQ mask register */
> @@ -846,7 +846,7 @@ static int cafe_nand_resume(struct pci_dev *pdev)
>  {
>  	uint32_t ctrl;
>  	struct mtd_info *mtd = pci_get_drvdata(pdev);
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	struct cafe_priv *cafe = nand_get_controller_data(chip);
>  
>         /* Start off by resetting the NAND controller completely */
> diff --git a/drivers/mtd/nand/raw/cmx270_nand.c b/drivers/mtd/nand/raw/cmx270_nand.c
> index 1fc435f..b85ccab 100644
> --- a/drivers/mtd/nand/raw/cmx270_nand.c
> +++ b/drivers/mtd/nand/raw/cmx270_nand.c
> @@ -53,7 +53,7 @@
>  
>  static u_char cmx270_read_byte(struct mtd_info *mtd)
>  {
> -	struct nand_chip *this = mtd_to_nand(mtd);
> +	struct nand_chip *this = mtd_to_nandchip(mtd);
>  
>  	return (readl(this->IO_ADDR_R) >> 16);
>  }
> @@ -61,7 +61,7 @@ static u_char cmx270_read_byte(struct mtd_info *mtd)
>  static void cmx270_write_buf(struct mtd_info *mtd, const u_char *buf, int len)
>  {
>  	int i;
> -	struct nand_chip *this = mtd_to_nand(mtd);
> +	struct nand_chip *this = mtd_to_nandchip(mtd);
>  
>  	for (i=0; i<len; i++)
>  		writel((*buf++ << 16), this->IO_ADDR_W);
> @@ -70,7 +70,7 @@ static void cmx270_write_buf(struct mtd_info *mtd, const u_char *buf, int len)
>  static void cmx270_read_buf(struct mtd_info *mtd, u_char *buf, int len)
>  {
>  	int i;
> -	struct nand_chip *this = mtd_to_nand(mtd);
> +	struct nand_chip *this = mtd_to_nandchip(mtd);
>  
>  	for (i=0; i<len; i++)
>  		*buf++ = readl(this->IO_ADDR_R) >> 16;
> @@ -94,7 +94,7 @@ static void nand_cs_off(void)
>  static void cmx270_hwcontrol(struct mtd_info *mtd, int dat,
>  			     unsigned int ctrl)
>  {
> -	struct nand_chip *this = mtd_to_nand(mtd);
> +	struct nand_chip *this = mtd_to_nandchip(mtd);
>  	unsigned int nandaddr = (unsigned int)this->IO_ADDR_W;
>  
>  	dsb();
> @@ -173,7 +173,7 @@ static int __init cmx270_init(void)
>  		goto err_ioremap;
>  	}
>  
> -	cmx270_nand_mtd = nand_to_mtd(this);
> +	cmx270_nand_mtd = nandchip_to_mtd(this);
>  
>  	/* Link the private data with the MTD structure */
>  	cmx270_nand_mtd->owner = THIS_MODULE;
> @@ -237,7 +237,7 @@ static void __exit cmx270_cleanup(void)
>  
>  	iounmap(cmx270_nand_io);
>  
> -	kfree(mtd_to_nand(cmx270_nand_mtd));
> +	kfree(mtd_to_nandchip(cmx270_nand_mtd));
>  }
>  module_exit(cmx270_cleanup);
>  
> diff --git a/drivers/mtd/nand/raw/cs553x_nand.c b/drivers/mtd/nand/raw/cs553x_nand.c
> index d488775..63149e2 100644
> --- a/drivers/mtd/nand/raw/cs553x_nand.c
> +++ b/drivers/mtd/nand/raw/cs553x_nand.c
> @@ -97,7 +97,7 @@
>  
>  static void cs553x_read_buf(struct mtd_info *mtd, u_char *buf, int len)
>  {
> -	struct nand_chip *this = mtd_to_nand(mtd);
> +	struct nand_chip *this = mtd_to_nandchip(mtd);
>  
>  	while (unlikely(len > 0x800)) {
>  		memcpy_fromio(buf, this->IO_ADDR_R, 0x800);
> @@ -109,7 +109,7 @@ static void cs553x_read_buf(struct mtd_info *mtd, u_char *buf, int len)
>  
>  static void cs553x_write_buf(struct mtd_info *mtd, const u_char *buf, int len)
>  {
> -	struct nand_chip *this = mtd_to_nand(mtd);
> +	struct nand_chip *this = mtd_to_nandchip(mtd);
>  
>  	while (unlikely(len > 0x800)) {
>  		memcpy_toio(this->IO_ADDR_R, buf, 0x800);
> @@ -121,13 +121,13 @@ static void cs553x_write_buf(struct mtd_info *mtd, const u_char *buf, int len)
>  
>  static unsigned char cs553x_read_byte(struct mtd_info *mtd)
>  {
> -	struct nand_chip *this = mtd_to_nand(mtd);
> +	struct nand_chip *this = mtd_to_nandchip(mtd);
>  	return readb(this->IO_ADDR_R);
>  }
>  
>  static void cs553x_write_byte(struct mtd_info *mtd, u_char byte)
>  {
> -	struct nand_chip *this = mtd_to_nand(mtd);
> +	struct nand_chip *this = mtd_to_nandchip(mtd);
>  	int i = 100000;
>  
>  	while (i && readb(this->IO_ADDR_R + MM_NAND_STS) & CS_NAND_CTLR_BUSY) {
> @@ -140,7 +140,7 @@ static void cs553x_write_byte(struct mtd_info *mtd, u_char byte)
>  static void cs553x_hwcontrol(struct mtd_info *mtd, int cmd,
>  			     unsigned int ctrl)
>  {
> -	struct nand_chip *this = mtd_to_nand(mtd);
> +	struct nand_chip *this = mtd_to_nandchip(mtd);
>  	void __iomem *mmio_base = this->IO_ADDR_R;
>  	if (ctrl & NAND_CTRL_CHANGE) {
>  		unsigned char ctl = (ctrl & ~NAND_CTRL_CHANGE ) ^ 0x01;
> @@ -152,7 +152,7 @@ static void cs553x_hwcontrol(struct mtd_info *mtd, int cmd,
>  
>  static int cs553x_device_ready(struct mtd_info *mtd)
>  {
> -	struct nand_chip *this = mtd_to_nand(mtd);
> +	struct nand_chip *this = mtd_to_nandchip(mtd);
>  	void __iomem *mmio_base = this->IO_ADDR_R;
>  	unsigned char foo = readb(mmio_base + MM_NAND_STS);
>  
> @@ -161,7 +161,7 @@ static int cs553x_device_ready(struct mtd_info *mtd)
>  
>  static void cs_enable_hwecc(struct mtd_info *mtd, int mode)
>  {
> -	struct nand_chip *this = mtd_to_nand(mtd);
> +	struct nand_chip *this = mtd_to_nandchip(mtd);
>  	void __iomem *mmio_base = this->IO_ADDR_R;
>  
>  	writeb(0x07, mmio_base + MM_NAND_ECC_CTL);
> @@ -170,7 +170,7 @@ static void cs_enable_hwecc(struct mtd_info *mtd, int mode)
>  static int cs_calculate_ecc(struct mtd_info *mtd, const u_char *dat, u_char *ecc_code)
>  {
>  	uint32_t ecc;
> -	struct nand_chip *this = mtd_to_nand(mtd);
> +	struct nand_chip *this = mtd_to_nandchip(mtd);
>  	void __iomem *mmio_base = this->IO_ADDR_R;
>  
>  	ecc = readl(mmio_base + MM_NAND_STS);
> @@ -203,7 +203,7 @@ static int __init cs553x_init_one(int cs, int mmio, unsigned long adr)
>  		goto out;
>  	}
>  
> -	new_mtd = nand_to_mtd(this);
> +	new_mtd = nandchip_to_mtd(this);
>  
>  	/* Link the private data with the MTD structure */
>  	new_mtd->owner = THIS_MODULE;
> @@ -334,7 +334,7 @@ static void __exit cs553x_cleanup(void)
>  		if (!mtd)
>  			continue;
>  
> -		this = mtd_to_nand(mtd);
> +		this = mtd_to_nandchip(mtd);
>  		mmio_base = this->IO_ADDR_R;
>  
>  		/* Release resources, unregister device */
> diff --git a/drivers/mtd/nand/raw/davinci_nand.c b/drivers/mtd/nand/raw/davinci_nand.c
> index ccc8c43..73b696a 100644
> --- a/drivers/mtd/nand/raw/davinci_nand.c
> +++ b/drivers/mtd/nand/raw/davinci_nand.c
> @@ -79,7 +79,7 @@ struct davinci_nand_info {
>  
>  static inline struct davinci_nand_info *to_davinci_nand(struct mtd_info *mtd)
>  {
> -	return container_of(mtd_to_nand(mtd), struct davinci_nand_info, chip);
> +	return container_of(mtd_to_nandchip(mtd), struct davinci_nand_info, chip);
>  }
>  
>  static inline unsigned int davinci_nand_readl(struct davinci_nand_info *info,
> @@ -105,7 +105,7 @@ static void nand_davinci_hwcontrol(struct mtd_info *mtd, int cmd,
>  {
>  	struct davinci_nand_info	*info = to_davinci_nand(mtd);
>  	uint32_t			addr = info->current_cs;
> -	struct nand_chip		*nand = mtd_to_nand(mtd);
> +	struct nand_chip		*nand = mtd_to_nandchip(mtd);
>  
>  	/* Did the control lines change? */
>  	if (ctrl & NAND_CTRL_CHANGE) {
> @@ -191,7 +191,7 @@ static int nand_davinci_calculate_1bit(struct mtd_info *mtd,
>  static int nand_davinci_correct_1bit(struct mtd_info *mtd, u_char *dat,
>  				     u_char *read_ecc, u_char *calc_ecc)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	uint32_t eccNand = read_ecc[0] | (read_ecc[1] << 8) |
>  					  (read_ecc[2] << 16);
>  	uint32_t eccCalc = calc_ecc[0] | (calc_ecc[1] << 8) |
> @@ -441,7 +441,7 @@ static int nand_davinci_correct_4bit(struct mtd_info *mtd,
>   */
>  static void nand_davinci_read_buf(struct mtd_info *mtd, uint8_t *buf, int len)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  
>  	if ((0x03 & ((unsigned)buf)) == 0 && (0x03 & len) == 0)
>  		ioread32_rep(chip->IO_ADDR_R, buf, len >> 2);
> @@ -454,7 +454,7 @@ static void nand_davinci_read_buf(struct mtd_info *mtd, uint8_t *buf, int len)
>  static void nand_davinci_write_buf(struct mtd_info *mtd,
>  		const uint8_t *buf, int len)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  
>  	if ((0x03 & ((unsigned)buf)) == 0 && (0x03 & len) == 0)
>  		iowrite32_rep(chip->IO_ADDR_R, buf, len >> 2);
> @@ -665,7 +665,7 @@ static int nand_davinci_probe(struct platform_device *pdev)
>  	info->base		= base;
>  	info->vaddr		= vaddr;
>  
> -	mtd			= nand_to_mtd(&info->chip);
> +	mtd			= nandchip_to_mtd(&info->chip);
>  	mtd->dev.parent		= &pdev->dev;
>  	nand_set_flash_node(&info->chip, pdev->dev.of_node);
>  
> @@ -854,7 +854,7 @@ static int nand_davinci_remove(struct platform_device *pdev)
>  		ecc4_busy = false;
>  	spin_unlock_irq(&davinci_nand_lock);
>  
> -	nand_release(nand_to_mtd(&info->chip));
> +	nand_release(nandchip_to_mtd(&info->chip));
>  
>  	clk_disable_unprepare(info->clk);
>  
> diff --git a/drivers/mtd/nand/raw/denali.c b/drivers/mtd/nand/raw/denali.c
> index 16634df..2e19fb3 100644
> --- a/drivers/mtd/nand/raw/denali.c
> +++ b/drivers/mtd/nand/raw/denali.c
> @@ -74,7 +74,7 @@
>   */
>  static inline struct denali_nand_info *mtd_to_denali(struct mtd_info *mtd)
>  {
> -	return container_of(mtd_to_nand(mtd), struct denali_nand_info, nand);
> +	return container_of(mtd_to_nandchip(mtd), struct denali_nand_info, nand);
>  }
>  
>  /*
> @@ -855,7 +855,7 @@ static int denali_hw_ecc_fixup(struct mtd_info *mtd,
>  			       struct denali_nand_info *denali,
>  			       unsigned long *uncor_ecc_flags)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	int bank = denali->flash_bank;
>  	uint32_t ecc_cor;
>  	unsigned int max_bitflips;
> @@ -1357,7 +1357,7 @@ static int denali_ooblayout_ecc(struct mtd_info *mtd, int section,
>  				struct mtd_oob_region *oobregion)
>  {
>  	struct denali_nand_info *denali = mtd_to_denali(mtd);
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  
>  	if (section)
>  		return -ERANGE;
> @@ -1372,7 +1372,7 @@ static int denali_ooblayout_free(struct mtd_info *mtd, int section,
>  				 struct mtd_oob_region *oobregion)
>  {
>  	struct denali_nand_info *denali = mtd_to_denali(mtd);
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  
>  	if (section)
>  		return -ERANGE;
> @@ -1436,7 +1436,7 @@ static void denali_drv_init(struct denali_nand_info *denali)
>  static int denali_multidev_fixup(struct denali_nand_info *denali)
>  {
>  	struct nand_chip *chip = &denali->nand;
> -	struct mtd_info *mtd = nand_to_mtd(chip);
> +	struct mtd_info *mtd = nandchip_to_mtd(chip);
>  
>  	/*
>  	 * Support for multi device:
> @@ -1487,7 +1487,7 @@ static int denali_multidev_fixup(struct denali_nand_info *denali)
>  int denali_init(struct denali_nand_info *denali)
>  {
>  	struct nand_chip *chip = &denali->nand;
> -	struct mtd_info *mtd = nand_to_mtd(chip);
> +	struct mtd_info *mtd = nandchip_to_mtd(&denali->nand);
>  	int ret;
>  
>  	if (denali->platform == INTEL_CE4100) {
> @@ -1647,7 +1647,7 @@ int denali_init(struct denali_nand_info *denali)
>  /* driver exit point */
>  void denali_remove(struct denali_nand_info *denali)
>  {
> -	struct mtd_info *mtd = nand_to_mtd(&denali->nand);
> +	struct mtd_info *mtd = nandchip_to_mtd(&denali->nand);
>  	/*
>  	 * Pre-compute DMA buffer size to avoid any problems in case
>  	 * nand_release() ever changes in a way that mtd->writesize and
> diff --git a/drivers/mtd/nand/raw/diskonchip.c b/drivers/mtd/nand/raw/diskonchip.c
> index c3aa53c..5c2dc9b 100644
> --- a/drivers/mtd/nand/raw/diskonchip.c
> +++ b/drivers/mtd/nand/raw/diskonchip.c
> @@ -295,7 +295,7 @@ static inline int DoC_WaitReady(struct doc_priv *doc)
>  
>  static void doc2000_write_byte(struct mtd_info *mtd, u_char datum)
>  {
> -	struct nand_chip *this = mtd_to_nand(mtd);
> +	struct nand_chip *this = mtd_to_nandchip(mtd);
>  	struct doc_priv *doc = nand_get_controller_data(this);
>  	void __iomem *docptr = doc->virtadr;
>  
> @@ -307,7 +307,7 @@ static void doc2000_write_byte(struct mtd_info *mtd, u_char datum)
>  
>  static u_char doc2000_read_byte(struct mtd_info *mtd)
>  {
> -	struct nand_chip *this = mtd_to_nand(mtd);
> +	struct nand_chip *this = mtd_to_nandchip(mtd);
>  	struct doc_priv *doc = nand_get_controller_data(this);
>  	void __iomem *docptr = doc->virtadr;
>  	u_char ret;
> @@ -322,7 +322,7 @@ static u_char doc2000_read_byte(struct mtd_info *mtd)
>  
>  static void doc2000_writebuf(struct mtd_info *mtd, const u_char *buf, int len)
>  {
> -	struct nand_chip *this = mtd_to_nand(mtd);
> +	struct nand_chip *this = mtd_to_nandchip(mtd);
>  	struct doc_priv *doc = nand_get_controller_data(this);
>  	void __iomem *docptr = doc->virtadr;
>  	int i;
> @@ -339,7 +339,7 @@ static void doc2000_writebuf(struct mtd_info *mtd, const u_char *buf, int len)
>  
>  static void doc2000_readbuf(struct mtd_info *mtd, u_char *buf, int len)
>  {
> -	struct nand_chip *this = mtd_to_nand(mtd);
> +	struct nand_chip *this = mtd_to_nandchip(mtd);
>  	struct doc_priv *doc = nand_get_controller_data(this);
>  	void __iomem *docptr = doc->virtadr;
>  	int i;
> @@ -354,7 +354,7 @@ static void doc2000_readbuf(struct mtd_info *mtd, u_char *buf, int len)
>  
>  static void doc2000_readbuf_dword(struct mtd_info *mtd, u_char *buf, int len)
>  {
> -	struct nand_chip *this = mtd_to_nand(mtd);
> +	struct nand_chip *this = mtd_to_nandchip(mtd);
>  	struct doc_priv *doc = nand_get_controller_data(this);
>  	void __iomem *docptr = doc->virtadr;
>  	int i;
> @@ -375,7 +375,7 @@ static void doc2000_readbuf_dword(struct mtd_info *mtd, u_char *buf, int len)
>  
>  static uint16_t __init doc200x_ident_chip(struct mtd_info *mtd, int nr)
>  {
> -	struct nand_chip *this = mtd_to_nand(mtd);
> +	struct nand_chip *this = mtd_to_nandchip(mtd);
>  	struct doc_priv *doc = nand_get_controller_data(this);
>  	uint16_t ret;
>  
> @@ -421,7 +421,7 @@ static uint16_t __init doc200x_ident_chip(struct mtd_info *mtd, int nr)
>  
>  static void __init doc2000_count_chips(struct mtd_info *mtd)
>  {
> -	struct nand_chip *this = mtd_to_nand(mtd);
> +	struct nand_chip *this = mtd_to_nandchip(mtd);
>  	struct doc_priv *doc = nand_get_controller_data(this);
>  	uint16_t mfrid;
>  	int i;
> @@ -457,7 +457,7 @@ static int doc200x_wait(struct mtd_info *mtd, struct nand_chip *this)
>  
>  static void doc2001_write_byte(struct mtd_info *mtd, u_char datum)
>  {
> -	struct nand_chip *this = mtd_to_nand(mtd);
> +	struct nand_chip *this = mtd_to_nandchip(mtd);
>  	struct doc_priv *doc = nand_get_controller_data(this);
>  	void __iomem *docptr = doc->virtadr;
>  
> @@ -468,7 +468,7 @@ static void doc2001_write_byte(struct mtd_info *mtd, u_char datum)
>  
>  static u_char doc2001_read_byte(struct mtd_info *mtd)
>  {
> -	struct nand_chip *this = mtd_to_nand(mtd);
> +	struct nand_chip *this = mtd_to_nandchip(mtd);
>  	struct doc_priv *doc = nand_get_controller_data(this);
>  	void __iomem *docptr = doc->virtadr;
>  
> @@ -482,7 +482,7 @@ static u_char doc2001_read_byte(struct mtd_info *mtd)
>  
>  static void doc2001_writebuf(struct mtd_info *mtd, const u_char *buf, int len)
>  {
> -	struct nand_chip *this = mtd_to_nand(mtd);
> +	struct nand_chip *this = mtd_to_nandchip(mtd);
>  	struct doc_priv *doc = nand_get_controller_data(this);
>  	void __iomem *docptr = doc->virtadr;
>  	int i;
> @@ -495,7 +495,7 @@ static void doc2001_writebuf(struct mtd_info *mtd, const u_char *buf, int len)
>  
>  static void doc2001_readbuf(struct mtd_info *mtd, u_char *buf, int len)
>  {
> -	struct nand_chip *this = mtd_to_nand(mtd);
> +	struct nand_chip *this = mtd_to_nandchip(mtd);
>  	struct doc_priv *doc = nand_get_controller_data(this);
>  	void __iomem *docptr = doc->virtadr;
>  	int i;
> @@ -512,7 +512,7 @@ static void doc2001_readbuf(struct mtd_info *mtd, u_char *buf, int len)
>  
>  static u_char doc2001plus_read_byte(struct mtd_info *mtd)
>  {
> -	struct nand_chip *this = mtd_to_nand(mtd);
> +	struct nand_chip *this = mtd_to_nandchip(mtd);
>  	struct doc_priv *doc = nand_get_controller_data(this);
>  	void __iomem *docptr = doc->virtadr;
>  	u_char ret;
> @@ -527,7 +527,7 @@ static u_char doc2001plus_read_byte(struct mtd_info *mtd)
>  
>  static void doc2001plus_writebuf(struct mtd_info *mtd, const u_char *buf, int len)
>  {
> -	struct nand_chip *this = mtd_to_nand(mtd);
> +	struct nand_chip *this = mtd_to_nandchip(mtd);
>  	struct doc_priv *doc = nand_get_controller_data(this);
>  	void __iomem *docptr = doc->virtadr;
>  	int i;
> @@ -545,7 +545,7 @@ static void doc2001plus_writebuf(struct mtd_info *mtd, const u_char *buf, int le
>  
>  static void doc2001plus_readbuf(struct mtd_info *mtd, u_char *buf, int len)
>  {
> -	struct nand_chip *this = mtd_to_nand(mtd);
> +	struct nand_chip *this = mtd_to_nandchip(mtd);
>  	struct doc_priv *doc = nand_get_controller_data(this);
>  	void __iomem *docptr = doc->virtadr;
>  	int i;
> @@ -576,7 +576,7 @@ static void doc2001plus_readbuf(struct mtd_info *mtd, u_char *buf, int len)
>  
>  static void doc2001plus_select_chip(struct mtd_info *mtd, int chip)
>  {
> -	struct nand_chip *this = mtd_to_nand(mtd);
> +	struct nand_chip *this = mtd_to_nandchip(mtd);
>  	struct doc_priv *doc = nand_get_controller_data(this);
>  	void __iomem *docptr = doc->virtadr;
>  	int floor = 0;
> @@ -603,7 +603,7 @@ static void doc2001plus_select_chip(struct mtd_info *mtd, int chip)
>  
>  static void doc200x_select_chip(struct mtd_info *mtd, int chip)
>  {
> -	struct nand_chip *this = mtd_to_nand(mtd);
> +	struct nand_chip *this = mtd_to_nandchip(mtd);
>  	struct doc_priv *doc = nand_get_controller_data(this);
>  	void __iomem *docptr = doc->virtadr;
>  	int floor = 0;
> @@ -634,7 +634,7 @@ static void doc200x_select_chip(struct mtd_info *mtd, int chip)
>  static void doc200x_hwcontrol(struct mtd_info *mtd, int cmd,
>  			      unsigned int ctrl)
>  {
> -	struct nand_chip *this = mtd_to_nand(mtd);
> +	struct nand_chip *this = mtd_to_nandchip(mtd);
>  	struct doc_priv *doc = nand_get_controller_data(this);
>  	void __iomem *docptr = doc->virtadr;
>  
> @@ -657,7 +657,7 @@ static void doc200x_hwcontrol(struct mtd_info *mtd, int cmd,
>  
>  static void doc2001plus_command(struct mtd_info *mtd, unsigned command, int column, int page_addr)
>  {
> -	struct nand_chip *this = mtd_to_nand(mtd);
> +	struct nand_chip *this = mtd_to_nandchip(mtd);
>  	struct doc_priv *doc = nand_get_controller_data(this);
>  	void __iomem *docptr = doc->virtadr;
>  
> @@ -763,7 +763,7 @@ static void doc2001plus_command(struct mtd_info *mtd, unsigned command, int colu
>  
>  static int doc200x_dev_ready(struct mtd_info *mtd)
>  {
> -	struct nand_chip *this = mtd_to_nand(mtd);
> +	struct nand_chip *this = mtd_to_nandchip(mtd);
>  	struct doc_priv *doc = nand_get_controller_data(this);
>  	void __iomem *docptr = doc->virtadr;
>  
> @@ -803,7 +803,7 @@ static int doc200x_block_bad(struct mtd_info *mtd, loff_t ofs)
>  
>  static void doc200x_enable_hwecc(struct mtd_info *mtd, int mode)
>  {
> -	struct nand_chip *this = mtd_to_nand(mtd);
> +	struct nand_chip *this = mtd_to_nandchip(mtd);
>  	struct doc_priv *doc = nand_get_controller_data(this);
>  	void __iomem *docptr = doc->virtadr;
>  
> @@ -822,7 +822,7 @@ static void doc200x_enable_hwecc(struct mtd_info *mtd, int mode)
>  
>  static void doc2001plus_enable_hwecc(struct mtd_info *mtd, int mode)
>  {
> -	struct nand_chip *this = mtd_to_nand(mtd);
> +	struct nand_chip *this = mtd_to_nandchip(mtd);
>  	struct doc_priv *doc = nand_get_controller_data(this);
>  	void __iomem *docptr = doc->virtadr;
>  
> @@ -842,7 +842,7 @@ static void doc2001plus_enable_hwecc(struct mtd_info *mtd, int mode)
>  /* This code is only called on write */
>  static int doc200x_calculate_ecc(struct mtd_info *mtd, const u_char *dat, unsigned char *ecc_code)
>  {
> -	struct nand_chip *this = mtd_to_nand(mtd);
> +	struct nand_chip *this = mtd_to_nandchip(mtd);
>  	struct doc_priv *doc = nand_get_controller_data(this);
>  	void __iomem *docptr = doc->virtadr;
>  	int i;
> @@ -903,7 +903,7 @@ static int doc200x_correct_data(struct mtd_info *mtd, u_char *dat,
>  				u_char *read_ecc, u_char *isnull)
>  {
>  	int i, ret = 0;
> -	struct nand_chip *this = mtd_to_nand(mtd);
> +	struct nand_chip *this = mtd_to_nandchip(mtd);
>  	struct doc_priv *doc = nand_get_controller_data(this);
>  	void __iomem *docptr = doc->virtadr;
>  	uint8_t calc_ecc[6];
> @@ -1004,7 +1004,7 @@ static int doc200x_ooblayout_free(struct mtd_info *mtd, int section,
>     mh1_page in the DOC private structure. */
>  static int __init find_media_headers(struct mtd_info *mtd, u_char *buf, const char *id, int findmirror)
>  {
> -	struct nand_chip *this = mtd_to_nand(mtd);
> +	struct nand_chip *this = mtd_to_nandchip(mtd);
>  	struct doc_priv *doc = nand_get_controller_data(this);
>  	unsigned offs;
>  	int ret;
> @@ -1047,7 +1047,7 @@ static int __init find_media_headers(struct mtd_info *mtd, u_char *buf, const ch
>  
>  static inline int __init nftl_partscan(struct mtd_info *mtd, struct mtd_partition *parts)
>  {
> -	struct nand_chip *this = mtd_to_nand(mtd);
> +	struct nand_chip *this = mtd_to_nandchip(mtd);
>  	struct doc_priv *doc = nand_get_controller_data(this);
>  	int ret = 0;
>  	u_char *buf;
> @@ -1149,7 +1149,7 @@ static inline int __init nftl_partscan(struct mtd_info *mtd, struct mtd_partitio
>  /* This is a stripped-down copy of the code in inftlmount.c */
>  static inline int __init inftl_partscan(struct mtd_info *mtd, struct mtd_partition *parts)
>  {
> -	struct nand_chip *this = mtd_to_nand(mtd);
> +	struct nand_chip *this = mtd_to_nandchip(mtd);
>  	struct doc_priv *doc = nand_get_controller_data(this);
>  	int ret = 0;
>  	u_char *buf;
> @@ -1269,7 +1269,7 @@ static inline int __init inftl_partscan(struct mtd_info *mtd, struct mtd_partiti
>  static int __init nftl_scan_bbt(struct mtd_info *mtd)
>  {
>  	int ret, numparts;
> -	struct nand_chip *this = mtd_to_nand(mtd);
> +	struct nand_chip *this = mtd_to_nandchip(mtd);
>  	struct doc_priv *doc = nand_get_controller_data(this);
>  	struct mtd_partition parts[2];
>  
> @@ -1304,7 +1304,7 @@ static int __init nftl_scan_bbt(struct mtd_info *mtd)
>  static int __init inftl_scan_bbt(struct mtd_info *mtd)
>  {
>  	int ret, numparts;
> -	struct nand_chip *this = mtd_to_nand(mtd);
> +	struct nand_chip *this = mtd_to_nandchip(mtd);
>  	struct doc_priv *doc = nand_get_controller_data(this);
>  	struct mtd_partition parts[5];
>  
> @@ -1357,7 +1357,7 @@ static int __init inftl_scan_bbt(struct mtd_info *mtd)
>  
>  static inline int __init doc2000_init(struct mtd_info *mtd)
>  {
> -	struct nand_chip *this = mtd_to_nand(mtd);
> +	struct nand_chip *this = mtd_to_nandchip(mtd);
>  	struct doc_priv *doc = nand_get_controller_data(this);
>  
>  	this->read_byte = doc2000_read_byte;
> @@ -1373,7 +1373,7 @@ static inline int __init doc2000_init(struct mtd_info *mtd)
>  
>  static inline int __init doc2001_init(struct mtd_info *mtd)
>  {
> -	struct nand_chip *this = mtd_to_nand(mtd);
> +	struct nand_chip *this = mtd_to_nandchip(mtd);
>  	struct doc_priv *doc = nand_get_controller_data(this);
>  
>  	this->read_byte = doc2001_read_byte;
> @@ -1403,7 +1403,7 @@ static inline int __init doc2001_init(struct mtd_info *mtd)
>  
>  static inline int __init doc2001plus_init(struct mtd_info *mtd)
>  {
> -	struct nand_chip *this = mtd_to_nand(mtd);
> +	struct nand_chip *this = mtd_to_nandchip(mtd);
>  	struct doc_priv *doc = nand_get_controller_data(this);
>  
>  	this->read_byte = doc2001plus_read_byte;
> @@ -1520,7 +1520,7 @@ static int __init doc_probe(unsigned long physadr)
>  	for (mtd = doclist; mtd; mtd = doc->nextdoc) {
>  		unsigned char oldval;
>  		unsigned char newval;
> -		nand = mtd_to_nand(mtd);
> +		nand = mtd_to_nandchip(mtd);
>  		doc = nand_get_controller_data(nand);
>  		/* Use the alias resolution register to determine if this is
>  		   in fact the same DOC aliased to a new address.  If writes
> @@ -1561,7 +1561,7 @@ static int __init doc_probe(unsigned long physadr)
>  		goto fail;
>  	}
>  
> -	mtd			= nand_to_mtd(nand);
> +	mtd			= nandchip_to_mtd(nand);
>  	doc			= (struct doc_priv *) (nand + 1);
>  	nand->bbt_td		= (struct nand_bbt_descr *) (doc + 1);
>  	nand->bbt_md		= nand->bbt_td + 1;
> @@ -1640,7 +1640,7 @@ static void release_nanddoc(void)
>  	struct doc_priv *doc;
>  
>  	for (mtd = doclist; mtd; mtd = nextmtd) {
> -		nand = mtd_to_nand(mtd);
> +		nand = mtd_to_nandchip(mtd);
>  		doc = nand_get_controller_data(nand);
>  
>  		nextmtd = doc->nextdoc;
> diff --git a/drivers/mtd/nand/raw/docg4.c b/drivers/mtd/nand/raw/docg4.c
> index e038130..c4a4089 100644
> --- a/drivers/mtd/nand/raw/docg4.c
> +++ b/drivers/mtd/nand/raw/docg4.c
> @@ -264,7 +264,7 @@ static inline void write_nop(void __iomem *docptr)
>  static void docg4_read_buf(struct mtd_info *mtd, uint8_t *buf, int len)
>  {
>  	int i;
> -	struct nand_chip *nand = mtd_to_nand(mtd);
> +	struct nand_chip *nand = mtd_to_nandchip(mtd);
>  	uint16_t *p = (uint16_t *) buf;
>  	len >>= 1;
>  
> @@ -275,7 +275,7 @@ static void docg4_read_buf(struct mtd_info *mtd, uint8_t *buf, int len)
>  static void docg4_write_buf16(struct mtd_info *mtd, const uint8_t *buf, int len)
>  {
>  	int i;
> -	struct nand_chip *nand = mtd_to_nand(mtd);
> +	struct nand_chip *nand = mtd_to_nandchip(mtd);
>  	uint16_t *p = (uint16_t *) buf;
>  	len >>= 1;
>  
> @@ -340,7 +340,7 @@ static void docg4_select_chip(struct mtd_info *mtd, int chip)
>  	 * Select among multiple cascaded chips ("floors").  Multiple floors are
>  	 * not yet supported, so the only valid non-negative value is 0.
>  	 */
> -	struct nand_chip *nand = mtd_to_nand(mtd);
> +	struct nand_chip *nand = mtd_to_nandchip(mtd);
>  	struct docg4_priv *doc = nand_get_controller_data(nand);
>  	void __iomem *docptr = doc->virtadr;
>  
> @@ -359,7 +359,7 @@ static void reset(struct mtd_info *mtd)
>  {
>  	/* full device reset */
>  
> -	struct nand_chip *nand = mtd_to_nand(mtd);
> +	struct nand_chip *nand = mtd_to_nandchip(mtd);
>  	struct docg4_priv *doc = nand_get_controller_data(nand);
>  	void __iomem *docptr = doc->virtadr;
>  
> @@ -397,7 +397,7 @@ static int correct_data(struct mtd_info *mtd, uint8_t *buf, int page)
>  	 * Up to four bitflips can be corrected.
>  	 */
>  
> -	struct nand_chip *nand = mtd_to_nand(mtd);
> +	struct nand_chip *nand = mtd_to_nandchip(mtd);
>  	struct docg4_priv *doc = nand_get_controller_data(nand);
>  	void __iomem *docptr = doc->virtadr;
>  	int i, numerrs, errpos[4];
> @@ -486,7 +486,7 @@ static int correct_data(struct mtd_info *mtd, uint8_t *buf, int page)
>  
>  static uint8_t docg4_read_byte(struct mtd_info *mtd)
>  {
> -	struct nand_chip *nand = mtd_to_nand(mtd);
> +	struct nand_chip *nand = mtd_to_nandchip(mtd);
>  	struct docg4_priv *doc = nand_get_controller_data(nand);
>  
>  	dev_dbg(doc->dev, "%s\n", __func__);
> @@ -567,7 +567,7 @@ static int pageprog(struct mtd_info *mtd)
>  	 * internal buffer out to the flash array, or some such.
>  	 */
>  
> -	struct nand_chip *nand = mtd_to_nand(mtd);
> +	struct nand_chip *nand = mtd_to_nandchip(mtd);
>  	struct docg4_priv *doc = nand_get_controller_data(nand);
>  	void __iomem *docptr = doc->virtadr;
>  	int retval = 0;
> @@ -604,7 +604,7 @@ static void sequence_reset(struct mtd_info *mtd)
>  {
>  	/* common starting sequence for all operations */
>  
> -	struct nand_chip *nand = mtd_to_nand(mtd);
> +	struct nand_chip *nand = mtd_to_nandchip(mtd);
>  	struct docg4_priv *doc = nand_get_controller_data(nand);
>  	void __iomem *docptr = doc->virtadr;
>  
> @@ -621,7 +621,7 @@ static void read_page_prologue(struct mtd_info *mtd, uint32_t docg4_addr)
>  {
>  	/* first step in reading a page */
>  
> -	struct nand_chip *nand = mtd_to_nand(mtd);
> +	struct nand_chip *nand = mtd_to_nandchip(mtd);
>  	struct docg4_priv *doc = nand_get_controller_data(nand);
>  	void __iomem *docptr = doc->virtadr;
>  
> @@ -648,7 +648,7 @@ static void write_page_prologue(struct mtd_info *mtd, uint32_t docg4_addr)
>  {
>  	/* first step in writing a page */
>  
> -	struct nand_chip *nand = mtd_to_nand(mtd);
> +	struct nand_chip *nand = mtd_to_nandchip(mtd);
>  	struct docg4_priv *doc = nand_get_controller_data(nand);
>  	void __iomem *docptr = doc->virtadr;
>  
> @@ -713,7 +713,7 @@ static void docg4_command(struct mtd_info *mtd, unsigned command, int column,
>  {
>  	/* handle standard nand commands */
>  
> -	struct nand_chip *nand = mtd_to_nand(mtd);
> +	struct nand_chip *nand = mtd_to_nandchip(mtd);
>  	struct docg4_priv *doc = nand_get_controller_data(nand);
>  	uint32_t g4_addr = mtd_to_docg4_address(page_addr, column);
>  
> @@ -896,7 +896,7 @@ static int docg4_read_oob(struct mtd_info *mtd, struct nand_chip *nand,
>  
>  static int docg4_erase_block(struct mtd_info *mtd, int page)
>  {
> -	struct nand_chip *nand = mtd_to_nand(mtd);
> +	struct nand_chip *nand = mtd_to_nandchip(mtd);
>  	struct docg4_priv *doc = nand_get_controller_data(nand);
>  	void __iomem *docptr = doc->virtadr;
>  	uint16_t g4_page;
> @@ -1038,7 +1038,7 @@ static int __init read_factory_bbt(struct mtd_info *mtd)
>  	 * update the memory-based bbt accordingly.
>  	 */
>  
> -	struct nand_chip *nand = mtd_to_nand(mtd);
> +	struct nand_chip *nand = mtd_to_nandchip(mtd);
>  	struct docg4_priv *doc = nand_get_controller_data(nand);
>  	uint32_t g4_addr = mtd_to_docg4_address(DOCG4_FACTORY_BBT_PAGE, 0);
>  	uint8_t *buf;
> @@ -1111,7 +1111,7 @@ static int docg4_block_markbad(struct mtd_info *mtd, loff_t ofs)
>  
>  	int ret, i;
>  	uint8_t *buf;
> -	struct nand_chip *nand = mtd_to_nand(mtd);
> +	struct nand_chip *nand = mtd_to_nandchip(mtd);
>  	struct docg4_priv *doc = nand_get_controller_data(nand);
>  	struct nand_bbt_descr *bbtd = nand->badblock_pattern;
>  	int page = (int)(ofs >> nand->page_shift);
> @@ -1224,7 +1224,7 @@ static void __init init_mtd_structs(struct mtd_info *mtd)
>  	 * things as well, such as call nand_set_defaults().
>  	 */
>  
> -	struct nand_chip *nand = mtd_to_nand(mtd);
> +	struct nand_chip *nand = mtd_to_nandchip(mtd);
>  	struct docg4_priv *doc = nand_get_controller_data(nand);
>  
>  	mtd->size = DOCG4_CHIP_SIZE;
> @@ -1282,7 +1282,7 @@ static void __init init_mtd_structs(struct mtd_info *mtd)
>  
>  static int __init read_id_reg(struct mtd_info *mtd)
>  {
> -	struct nand_chip *nand = mtd_to_nand(mtd);
> +	struct nand_chip *nand = mtd_to_nandchip(mtd);
>  	struct docg4_priv *doc = nand_get_controller_data(nand);
>  	void __iomem *docptr = doc->virtadr;
>  	uint16_t id1, id2;
> @@ -1333,7 +1333,7 @@ static int __init probe_docg4(struct platform_device *pdev)
>  		goto fail_unmap;
>  	}
>  
> -	mtd = nand_to_mtd(nand);
> +	mtd = nandchip_to_mtd(nand);
>  	doc = (struct docg4_priv *) (nand + 1);
>  	nand_set_controller_data(nand, doc);
>  	mtd->dev.parent = &pdev->dev;
> @@ -1389,7 +1389,7 @@ static int __exit cleanup_docg4(struct platform_device *pdev)
>  	struct docg4_priv *doc = platform_get_drvdata(pdev);
>  	nand_release(doc->mtd);
>  	free_bch(doc->bch);
> -	kfree(mtd_to_nand(doc->mtd));
> +	kfree(mtd_to_nandchip(doc->mtd));
>  	iounmap(doc->virtadr);
>  	return 0;
>  }
> diff --git a/drivers/mtd/nand/raw/fsl_elbc_nand.c b/drivers/mtd/nand/raw/fsl_elbc_nand.c
> index 7d8453e..f0ea638 100644
> --- a/drivers/mtd/nand/raw/fsl_elbc_nand.c
> +++ b/drivers/mtd/nand/raw/fsl_elbc_nand.c
> @@ -82,7 +82,7 @@ struct fsl_elbc_fcm_ctrl {
>  static int fsl_elbc_ooblayout_ecc(struct mtd_info *mtd, int section,
>  				  struct mtd_oob_region *oobregion)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	struct fsl_elbc_mtd *priv = nand_get_controller_data(chip);
>  
>  	if (section >= chip->ecc.steps)
> @@ -100,7 +100,7 @@ static int fsl_elbc_ooblayout_ecc(struct mtd_info *mtd, int section,
>  static int fsl_elbc_ooblayout_free(struct mtd_info *mtd, int section,
>  				   struct mtd_oob_region *oobregion)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	struct fsl_elbc_mtd *priv = nand_get_controller_data(chip);
>  
>  	if (section > chip->ecc.steps)
> @@ -164,7 +164,7 @@ static int fsl_elbc_ooblayout_free(struct mtd_info *mtd, int section,
>   */
>  static void set_addr(struct mtd_info *mtd, int column, int page_addr, int oob)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	struct fsl_elbc_mtd *priv = nand_get_controller_data(chip);
>  	struct fsl_lbc_ctrl *ctrl = priv->ctrl;
>  	struct fsl_lbc_regs __iomem *lbc = ctrl->regs;
> @@ -215,7 +215,7 @@ static void set_addr(struct mtd_info *mtd, int column, int page_addr, int oob)
>   */
>  static int fsl_elbc_run_command(struct mtd_info *mtd)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	struct fsl_elbc_mtd *priv = nand_get_controller_data(chip);
>  	struct fsl_lbc_ctrl *ctrl = priv->ctrl;
>  	struct fsl_elbc_fcm_ctrl *elbc_fcm_ctrl = ctrl->nand;
> @@ -320,7 +320,7 @@ static void fsl_elbc_do_read(struct nand_chip *chip, int oob)
>  static void fsl_elbc_cmdfunc(struct mtd_info *mtd, unsigned int command,
>                               int column, int page_addr)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	struct fsl_elbc_mtd *priv = nand_get_controller_data(chip);
>  	struct fsl_lbc_ctrl *ctrl = priv->ctrl;
>  	struct fsl_elbc_fcm_ctrl *elbc_fcm_ctrl = ctrl->nand;
> @@ -545,7 +545,7 @@ static void fsl_elbc_select_chip(struct mtd_info *mtd, int chip)
>   */
>  static void fsl_elbc_write_buf(struct mtd_info *mtd, const u8 *buf, int len)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	struct fsl_elbc_mtd *priv = nand_get_controller_data(chip);
>  	struct fsl_elbc_fcm_ctrl *elbc_fcm_ctrl = priv->ctrl->nand;
>  	unsigned int bufsize = mtd->writesize + mtd->oobsize;
> @@ -583,7 +583,7 @@ static void fsl_elbc_write_buf(struct mtd_info *mtd, const u8 *buf, int len)
>   */
>  static u8 fsl_elbc_read_byte(struct mtd_info *mtd)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	struct fsl_elbc_mtd *priv = nand_get_controller_data(chip);
>  	struct fsl_elbc_fcm_ctrl *elbc_fcm_ctrl = priv->ctrl->nand;
>  
> @@ -600,7 +600,7 @@ static u8 fsl_elbc_read_byte(struct mtd_info *mtd)
>   */
>  static void fsl_elbc_read_buf(struct mtd_info *mtd, u8 *buf, int len)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	struct fsl_elbc_mtd *priv = nand_get_controller_data(chip);
>  	struct fsl_elbc_fcm_ctrl *elbc_fcm_ctrl = priv->ctrl->nand;
>  	int avail;
> @@ -639,7 +639,7 @@ static int fsl_elbc_wait(struct mtd_info *mtd, struct nand_chip *chip)
>  
>  static int fsl_elbc_chip_init_tail(struct mtd_info *mtd)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	struct fsl_elbc_mtd *priv = nand_get_controller_data(chip);
>  	struct fsl_lbc_ctrl *ctrl = priv->ctrl;
>  	struct fsl_lbc_regs __iomem *lbc = ctrl->regs;
> @@ -754,7 +754,7 @@ static int fsl_elbc_chip_init(struct fsl_elbc_mtd *priv)
>  	struct fsl_lbc_regs __iomem *lbc = ctrl->regs;
>  	struct fsl_elbc_fcm_ctrl *elbc_fcm_ctrl = ctrl->nand;
>  	struct nand_chip *chip = &priv->chip;
> -	struct mtd_info *mtd = nand_to_mtd(chip);
> +	struct mtd_info *mtd = nandchip_to_mtd(chip);
>  
>  	dev_dbg(priv->dev, "eLBC Set Information for bank %d\n", priv->bank);
>  
> @@ -809,7 +809,7 @@ static int fsl_elbc_chip_init(struct fsl_elbc_mtd *priv)
>  static int fsl_elbc_chip_remove(struct fsl_elbc_mtd *priv)
>  {
>  	struct fsl_elbc_fcm_ctrl *elbc_fcm_ctrl = priv->ctrl->nand;
> -	struct mtd_info *mtd = nand_to_mtd(&priv->chip);
> +	struct mtd_info *mtd = nandchip_to_mtd(&priv->chip);
>  
>  	nand_release(mtd);
>  
> @@ -899,9 +899,9 @@ static int fsl_elbc_nand_probe(struct platform_device *pdev)
>  		goto err;
>  	}
>  
> -	mtd = nand_to_mtd(&priv->chip);
> +	mtd = nandchip_to_mtd(&priv->chip);
>  	mtd->name = kasprintf(GFP_KERNEL, "%llx.flash", (u64)res.start);
> -	if (!nand_to_mtd(&priv->chip)->name) {
> +	if (!nandchip_to_mtd(&priv->chip)->name) {
>  		ret = -ENOMEM;
>  		goto err;
>  	}
> diff --git a/drivers/mtd/nand/raw/fsl_ifc_nand.c b/drivers/mtd/nand/raw/fsl_ifc_nand.c
> index b9b8534..09ae754 100644
> --- a/drivers/mtd/nand/raw/fsl_ifc_nand.c
> +++ b/drivers/mtd/nand/raw/fsl_ifc_nand.c
> @@ -96,7 +96,7 @@ struct fsl_ifc_nand_ctrl {
>  static int fsl_ifc_ooblayout_ecc(struct mtd_info *mtd, int section,
>  				 struct mtd_oob_region *oobregion)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  
>  	if (section)
>  		return -ERANGE;
> @@ -110,7 +110,7 @@ static int fsl_ifc_ooblayout_ecc(struct mtd_info *mtd, int section,
>  static int fsl_ifc_ooblayout_free(struct mtd_info *mtd, int section,
>  				  struct mtd_oob_region *oobregion)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  
>  	if (section > 1)
>  		return -ERANGE;
> @@ -150,7 +150,7 @@ static int fsl_ifc_ooblayout_free(struct mtd_info *mtd, int section,
>   */
>  static void set_addr(struct mtd_info *mtd, int column, int page_addr, int oob)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	struct fsl_ifc_mtd *priv = nand_get_controller_data(chip);
>  	struct fsl_ifc_ctrl *ctrl = priv->ctrl;
>  	struct fsl_ifc_runtime __iomem *ifc = ctrl->rregs;
> @@ -173,7 +173,7 @@ static void set_addr(struct mtd_info *mtd, int column, int page_addr, int oob)
>  
>  static int is_blank(struct mtd_info *mtd, unsigned int bufnum)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	struct fsl_ifc_mtd *priv = nand_get_controller_data(chip);
>  	u8 __iomem *addr = priv->vbase + bufnum * (mtd->writesize * 2);
>  	u32 __iomem *mainarea = (u32 __iomem *)addr;
> @@ -216,7 +216,7 @@ static int check_read_ecc(struct mtd_info *mtd, struct fsl_ifc_ctrl *ctrl,
>   */
>  static void fsl_ifc_run_command(struct mtd_info *mtd)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	struct fsl_ifc_mtd *priv = nand_get_controller_data(chip);
>  	struct fsl_ifc_ctrl *ctrl = priv->ctrl;
>  	struct fsl_ifc_nand_ctrl *nctrl = ifc_nand_ctrl;
> @@ -339,7 +339,7 @@ static void fsl_ifc_do_read(struct nand_chip *chip,
>  /* cmdfunc send commands to the IFC NAND Machine */
>  static void fsl_ifc_cmdfunc(struct mtd_info *mtd, unsigned int command,
>  			     int column, int page_addr) {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	struct fsl_ifc_mtd *priv = nand_get_controller_data(chip);
>  	struct fsl_ifc_ctrl *ctrl = priv->ctrl;
>  	struct fsl_ifc_runtime __iomem *ifc = ctrl->rregs;
> @@ -554,7 +554,7 @@ static void fsl_ifc_select_chip(struct mtd_info *mtd, int chip)
>   */
>  static void fsl_ifc_write_buf(struct mtd_info *mtd, const u8 *buf, int len)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	struct fsl_ifc_mtd *priv = nand_get_controller_data(chip);
>  	unsigned int bufsize = mtd->writesize + mtd->oobsize;
>  
> @@ -580,7 +580,7 @@ static void fsl_ifc_write_buf(struct mtd_info *mtd, const u8 *buf, int len)
>   */
>  static uint8_t fsl_ifc_read_byte(struct mtd_info *mtd)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	struct fsl_ifc_mtd *priv = nand_get_controller_data(chip);
>  	unsigned int offset;
>  
> @@ -603,7 +603,7 @@ static uint8_t fsl_ifc_read_byte(struct mtd_info *mtd)
>   */
>  static uint8_t fsl_ifc_read_byte16(struct mtd_info *mtd)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	struct fsl_ifc_mtd *priv = nand_get_controller_data(chip);
>  	uint16_t data;
>  
> @@ -626,7 +626,7 @@ static uint8_t fsl_ifc_read_byte16(struct mtd_info *mtd)
>   */
>  static void fsl_ifc_read_buf(struct mtd_info *mtd, u8 *buf, int len)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	struct fsl_ifc_mtd *priv = nand_get_controller_data(chip);
>  	int avail;
>  
> @@ -712,7 +712,7 @@ static int fsl_ifc_write_page(struct mtd_info *mtd, struct nand_chip *chip,
>  
>  static int fsl_ifc_chip_init_tail(struct mtd_info *mtd)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	struct fsl_ifc_mtd *priv = nand_get_controller_data(chip);
>  
>  	dev_dbg(priv->dev, "%s: nand->numchips = %d\n", __func__,
> @@ -811,7 +811,7 @@ static int fsl_ifc_chip_init(struct fsl_ifc_mtd *priv)
>  	struct fsl_ifc_global __iomem *ifc_global = ctrl->gregs;
>  	struct fsl_ifc_runtime __iomem *ifc_runtime = ctrl->rregs;
>  	struct nand_chip *chip = &priv->chip;
> -	struct mtd_info *mtd = nand_to_mtd(&priv->chip);
> +	struct mtd_info *mtd = nandchip_to_mtd(&priv->chip);
>  	u32 csor;
>  
>  	/* Fill in fsl_ifc_mtd structure */
> @@ -912,7 +912,7 @@ static int fsl_ifc_chip_init(struct fsl_ifc_mtd *priv)
>  
>  static int fsl_ifc_chip_remove(struct fsl_ifc_mtd *priv)
>  {
> -	struct mtd_info *mtd = nand_to_mtd(&priv->chip);
> +	struct mtd_info *mtd = nandchip_to_mtd(&priv->chip);
>  
>  	nand_release(mtd);
>  
> @@ -1024,7 +1024,7 @@ static int fsl_ifc_nand_probe(struct platform_device *dev)
>  		  IFC_NAND_EVTER_INTR_WPERIR_EN,
>  		  &ifc->ifc_nand.nand_evter_intr_en);
>  
> -	mtd = nand_to_mtd(&priv->chip);
> +	mtd = nandchip_to_mtd(&priv->chip);
>  	mtd->name = kasprintf(GFP_KERNEL, "%llx.flash", (u64)res.start);
>  	if (!mtd->name) {
>  		ret = -ENOMEM;
> diff --git a/drivers/mtd/nand/raw/fsl_upm.c b/drivers/mtd/nand/raw/fsl_upm.c
> index a88e2cf..9715cdd 100644
> --- a/drivers/mtd/nand/raw/fsl_upm.c
> +++ b/drivers/mtd/nand/raw/fsl_upm.c
> @@ -48,7 +48,7 @@ struct fsl_upm_nand {
>  
>  static inline struct fsl_upm_nand *to_fsl_upm_nand(struct mtd_info *mtdinfo)
>  {
> -	return container_of(mtd_to_nand(mtdinfo), struct fsl_upm_nand,
> +	return container_of(mtd_to_nandchip(mtdinfo), struct fsl_upm_nand,
>  			    chip);
>  }
>  
> @@ -66,7 +66,7 @@ static int fun_chip_ready(struct mtd_info *mtd)
>  static void fun_wait_rnb(struct fsl_upm_nand *fun)
>  {
>  	if (fun->rnb_gpio[fun->mchip_number] >= 0) {
> -		struct mtd_info *mtd = nand_to_mtd(&fun->chip);
> +		struct mtd_info *mtd = nandchip_to_mtd(&fun->chip);
>  		int cnt = 1000000;
>  
>  		while (--cnt && !fun_chip_ready(mtd))
> @@ -80,7 +80,7 @@ static void fun_wait_rnb(struct fsl_upm_nand *fun)
>  
>  static void fun_cmd_ctrl(struct mtd_info *mtd, int cmd, unsigned int ctrl)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	struct fsl_upm_nand *fun = to_fsl_upm_nand(mtd);
>  	u32 mar;
>  
> @@ -110,7 +110,7 @@ static void fun_cmd_ctrl(struct mtd_info *mtd, int cmd, unsigned int ctrl)
>  
>  static void fun_select_chip(struct mtd_info *mtd, int mchip_nr)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	struct fsl_upm_nand *fun = to_fsl_upm_nand(mtd);
>  
>  	if (mchip_nr == -1) {
> @@ -158,7 +158,7 @@ static int fun_chip_init(struct fsl_upm_nand *fun,
>  			 const struct device_node *upm_np,
>  			 const struct resource *io_res)
>  {
> -	struct mtd_info *mtd = nand_to_mtd(&fun->chip);
> +	struct mtd_info *mtd = nandchip_to_mtd(&fun->chip);
>  	int ret;
>  	struct device_node *flash_np;
>  
> @@ -323,7 +323,7 @@ static int fun_probe(struct platform_device *ofdev)
>  static int fun_remove(struct platform_device *ofdev)
>  {
>  	struct fsl_upm_nand *fun = dev_get_drvdata(&ofdev->dev);
> -	struct mtd_info *mtd = nand_to_mtd(&fun->chip);
> +	struct mtd_info *mtd = nandchip_to_mtd(&fun->chip);
>  	int i;
>  
>  	nand_release(mtd);
> diff --git a/drivers/mtd/nand/raw/fsmc_nand.c b/drivers/mtd/nand/raw/fsmc_nand.c
> index bab7064..3597b54 100644
> --- a/drivers/mtd/nand/raw/fsmc_nand.c
> +++ b/drivers/mtd/nand/raw/fsmc_nand.c
> @@ -171,7 +171,7 @@ struct fsmc_nand_data {
>  static int fsmc_ecc1_ooblayout_ecc(struct mtd_info *mtd, int section,
>  				   struct mtd_oob_region *oobregion)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  
>  	if (section >= chip->ecc.steps)
>  		return -ERANGE;
> @@ -185,7 +185,7 @@ static int fsmc_ecc1_ooblayout_ecc(struct mtd_info *mtd, int section,
>  static int fsmc_ecc1_ooblayout_free(struct mtd_info *mtd, int section,
>  				    struct mtd_oob_region *oobregion)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  
>  	if (section >= chip->ecc.steps)
>  		return -ERANGE;
> @@ -214,7 +214,7 @@ static int fsmc_ecc1_ooblayout_free(struct mtd_info *mtd, int section,
>  static int fsmc_ecc4_ooblayout_ecc(struct mtd_info *mtd, int section,
>  				   struct mtd_oob_region *oobregion)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  
>  	if (section >= chip->ecc.steps)
>  		return -ERANGE;
> @@ -232,7 +232,7 @@ static int fsmc_ecc4_ooblayout_ecc(struct mtd_info *mtd, int section,
>  static int fsmc_ecc4_ooblayout_free(struct mtd_info *mtd, int section,
>  				    struct mtd_oob_region *oobregion)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  
>  	if (section >= chip->ecc.steps)
>  		return -ERANGE;
> @@ -254,7 +254,7 @@ static int fsmc_ecc4_ooblayout_free(struct mtd_info *mtd, int section,
>  
>  static inline struct fsmc_nand_data *mtd_to_fsmc(struct mtd_info *mtd)
>  {
> -	return container_of(mtd_to_nand(mtd), struct fsmc_nand_data, nand);
> +	return container_of(mtd_to_nandchip(mtd), struct fsmc_nand_data, nand);
>  }
>  
>  /*
> @@ -263,7 +263,7 @@ static inline struct fsmc_nand_data *mtd_to_fsmc(struct mtd_info *mtd)
>   */
>  static void fsmc_cmd_ctrl(struct mtd_info *mtd, int cmd, unsigned int ctrl)
>  {
> -	struct nand_chip *this = mtd_to_nand(mtd);
> +	struct nand_chip *this = mtd_to_nandchip(mtd);
>  	struct fsmc_nand_data *host = mtd_to_fsmc(mtd);
>  	void __iomem *regs = host->regs_va;
>  	unsigned int bank = host->bank;
> @@ -392,7 +392,7 @@ static int fsmc_setup_data_interface(struct mtd_info *mtd,
>  				     const struct nand_data_interface *conf,
>  				     bool check_only)
>  {
> -	struct nand_chip *nand = mtd_to_nand(mtd);
> +	struct nand_chip *nand = mtd_to_nandchip(mtd);
>  	struct fsmc_nand_data *host = nand_get_controller_data(nand);
>  	struct fsmc_nand_timings tims;
>  	const struct nand_sdr_timings *sdrt;
> @@ -600,7 +600,7 @@ static int dma_xfer(struct fsmc_nand_data *host, void *buffer, int len,
>  static void fsmc_write_buf(struct mtd_info *mtd, const uint8_t *buf, int len)
>  {
>  	int i;
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  
>  	if (IS_ALIGNED((uint32_t)buf, sizeof(uint32_t)) &&
>  			IS_ALIGNED(len, sizeof(uint32_t))) {
> @@ -623,7 +623,7 @@ static void fsmc_write_buf(struct mtd_info *mtd, const uint8_t *buf, int len)
>  static void fsmc_read_buf(struct mtd_info *mtd, uint8_t *buf, int len)
>  {
>  	int i;
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  
>  	if (IS_ALIGNED((uint32_t)buf, sizeof(uint32_t)) &&
>  			IS_ALIGNED(len, sizeof(uint32_t))) {
> @@ -754,7 +754,7 @@ static int fsmc_read_page_hwecc(struct mtd_info *mtd, struct nand_chip *chip,
>  static int fsmc_bch8_correct_data(struct mtd_info *mtd, uint8_t *dat,
>  			     uint8_t *read_ecc, uint8_t *calc_ecc)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	struct fsmc_nand_data *host = mtd_to_fsmc(mtd);
>  	void __iomem *regs = host->regs_va;
>  	unsigned int bank = host->bank;
> @@ -957,7 +957,7 @@ static int __init fsmc_nand_probe(struct platform_device *pdev)
>  		init_completion(&host->dma_access_complete);
>  
>  	/* Link all private pointers */
> -	mtd = nand_to_mtd(&host->nand);
> +	mtd = nandchip_to_mtd(&host->nand);
>  	nand_set_controller_data(nand, host);
>  	nand_set_flash_node(nand, pdev->dev.of_node);
>  
> @@ -1119,7 +1119,7 @@ static int fsmc_nand_remove(struct platform_device *pdev)
>  	struct fsmc_nand_data *host = platform_get_drvdata(pdev);
>  
>  	if (host) {
> -		nand_release(nand_to_mtd(&host->nand));
> +		nand_release(nandchip_to_mtd(&host->nand));
>  
>  		if (host->mode == USE_DMA_ACCESS) {
>  			dma_release_channel(host->write_dma_chan);
> diff --git a/drivers/mtd/nand/raw/gpio.c b/drivers/mtd/nand/raw/gpio.c
> index fd36489..8d5a9ca 100644
> --- a/drivers/mtd/nand/raw/gpio.c
> +++ b/drivers/mtd/nand/raw/gpio.c
> @@ -41,7 +41,7 @@ struct gpiomtd {
>  
>  static inline struct gpiomtd *gpio_nand_getpriv(struct mtd_info *mtd)
>  {
> -	return container_of(mtd_to_nand(mtd), struct gpiomtd, nand_chip);
> +	return container_of(mtd_to_nandchip(mtd), struct gpiomtd, nand_chip);
>  }
>  
>  
> @@ -199,7 +199,7 @@ static int gpio_nand_remove(struct platform_device *pdev)
>  {
>  	struct gpiomtd *gpiomtd = platform_get_drvdata(pdev);
>  
> -	nand_release(nand_to_mtd(&gpiomtd->nand_chip));
> +	nand_release(nandchip_to_mtd(&gpiomtd->nand_chip));
>  
>  	if (gpio_is_valid(gpiomtd->plat.gpio_nwp))
>  		gpio_set_value(gpiomtd->plat.gpio_nwp, 0);
> @@ -284,7 +284,7 @@ static int gpio_nand_probe(struct platform_device *pdev)
>  	chip->chip_delay	= gpiomtd->plat.chip_delay;
>  	chip->cmd_ctrl		= gpio_nand_cmd_ctrl;
>  
> -	mtd			= nand_to_mtd(chip);
> +	mtd			= nandchip_to_mtd(chip);
>  	mtd->dev.parent		= &pdev->dev;
>  
>  	platform_set_drvdata(pdev, gpiomtd);
> diff --git a/drivers/mtd/nand/raw/gpmi-nand/gpmi-lib.c b/drivers/mtd/nand/raw/gpmi-nand/gpmi-lib.c
> index 141bd70..7217912 100644
> --- a/drivers/mtd/nand/raw/gpmi-nand/gpmi-lib.c
> +++ b/drivers/mtd/nand/raw/gpmi-nand/gpmi-lib.c
> @@ -921,7 +921,7 @@ static int enable_edo_mode(struct gpmi_nand_data *this, int mode)
>  {
>  	struct resources  *r = &this->resources;
>  	struct nand_chip *nand = &this->nand;
> -	struct mtd_info	 *mtd = nand_to_mtd(nand);
> +	struct mtd_info	 *mtd = nandchip_to_mtd(nand);
>  	uint8_t *feature;
>  	unsigned long rate;
>  	int ret;
> diff --git a/drivers/mtd/nand/raw/gpmi-nand/gpmi-nand.c b/drivers/mtd/nand/raw/gpmi-nand/gpmi-nand.c
> index 50f8d4a..b736ea2 100644
> --- a/drivers/mtd/nand/raw/gpmi-nand/gpmi-nand.c
> +++ b/drivers/mtd/nand/raw/gpmi-nand/gpmi-nand.c
> @@ -50,7 +50,7 @@
>  static int gpmi_ooblayout_ecc(struct mtd_info *mtd, int section,
>  			      struct mtd_oob_region *oobregion)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	struct gpmi_nand_data *this = nand_get_controller_data(chip);
>  	struct bch_geometry *geo = &this->bch_geometry;
>  
> @@ -66,7 +66,7 @@ static int gpmi_ooblayout_ecc(struct mtd_info *mtd, int section,
>  static int gpmi_ooblayout_free(struct mtd_info *mtd, int section,
>  			       struct mtd_oob_region *oobregion)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	struct gpmi_nand_data *this = nand_get_controller_data(chip);
>  	struct bch_geometry *geo = &this->bch_geometry;
>  
> @@ -169,7 +169,7 @@ static irqreturn_t bch_irq(int irq, void *cookie)
>  static inline int get_ecc_strength(struct gpmi_nand_data *this)
>  {
>  	struct bch_geometry *geo = &this->bch_geometry;
> -	struct mtd_info	*mtd = nand_to_mtd(&this->nand);
> +	struct mtd_info	*mtd = nandchip_to_mtd(&this->nand);
>  	int ecc_strength;
>  
>  	ecc_strength = ((mtd->oobsize - geo->metadata_size) * 8)
> @@ -202,7 +202,7 @@ static int set_geometry_by_ecc_info(struct gpmi_nand_data *this)
>  {
>  	struct bch_geometry *geo = &this->bch_geometry;
>  	struct nand_chip *chip = &this->nand;
> -	struct mtd_info *mtd = nand_to_mtd(chip);
> +	struct mtd_info *mtd = nandchip_to_mtd(chip);
>  	unsigned int block_mark_bit_offset;
>  
>  	if (!(chip->ecc_strength_ds > 0 && chip->ecc_step_ds > 0))
> @@ -312,7 +312,7 @@ static int set_geometry_by_ecc_info(struct gpmi_nand_data *this)
>  static int legacy_set_geometry(struct gpmi_nand_data *this)
>  {
>  	struct bch_geometry *geo = &this->bch_geometry;
> -	struct mtd_info *mtd = nand_to_mtd(&this->nand);
> +	struct mtd_info *mtd = nandchip_to_mtd(&this->nand);
>  	unsigned int metadata_size;
>  	unsigned int status_size;
>  	unsigned int block_mark_bit_offset;
> @@ -842,7 +842,7 @@ static int gpmi_alloc_dma_buffer(struct gpmi_nand_data *this)
>  {
>  	struct bch_geometry *geo = &this->bch_geometry;
>  	struct device *dev = this->dev;
> -	struct mtd_info *mtd = nand_to_mtd(&this->nand);
> +	struct mtd_info *mtd = nandchip_to_mtd(&this->nand);
>  
>  	/* [1] Allocate a command buffer. PAGE_SIZE is enough. */
>  	this->cmd_buffer = kzalloc(PAGE_SIZE, GFP_DMA | GFP_KERNEL);
> @@ -894,7 +894,7 @@ static int gpmi_alloc_dma_buffer(struct gpmi_nand_data *this)
>  
>  static void gpmi_cmd_ctrl(struct mtd_info *mtd, int data, unsigned int ctrl)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	struct gpmi_nand_data *this = nand_get_controller_data(chip);
>  	int ret;
>  
> @@ -928,7 +928,7 @@ static void gpmi_cmd_ctrl(struct mtd_info *mtd, int data, unsigned int ctrl)
>  
>  static int gpmi_dev_ready(struct mtd_info *mtd)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	struct gpmi_nand_data *this = nand_get_controller_data(chip);
>  
>  	return gpmi_is_ready(this, this->current_chip);
> @@ -936,7 +936,7 @@ static int gpmi_dev_ready(struct mtd_info *mtd)
>  
>  static void gpmi_select_chip(struct mtd_info *mtd, int chipnr)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	struct gpmi_nand_data *this = nand_get_controller_data(chip);
>  
>  	if ((this->current_chip < 0) && (chipnr >= 0))
> @@ -949,7 +949,7 @@ static void gpmi_select_chip(struct mtd_info *mtd, int chipnr)
>  
>  static void gpmi_read_buf(struct mtd_info *mtd, uint8_t *buf, int len)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	struct gpmi_nand_data *this = nand_get_controller_data(chip);
>  
>  	dev_dbg(this->dev, "len is %d\n", len);
> @@ -961,7 +961,7 @@ static void gpmi_read_buf(struct mtd_info *mtd, uint8_t *buf, int len)
>  
>  static void gpmi_write_buf(struct mtd_info *mtd, const uint8_t *buf, int len)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	struct gpmi_nand_data *this = nand_get_controller_data(chip);
>  
>  	dev_dbg(this->dev, "len is %d\n", len);
> @@ -973,7 +973,7 @@ static void gpmi_write_buf(struct mtd_info *mtd, const uint8_t *buf, int len)
>  
>  static uint8_t gpmi_read_byte(struct mtd_info *mtd)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	struct gpmi_nand_data *this = nand_get_controller_data(chip);
>  	uint8_t *buf = this->data_buffer_dma;
>  
> @@ -1645,7 +1645,7 @@ static int gpmi_ecc_write_oob_raw(struct mtd_info *mtd, struct nand_chip *chip,
>  
>  static int gpmi_block_markbad(struct mtd_info *mtd, loff_t ofs)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	struct gpmi_nand_data *this = nand_get_controller_data(chip);
>  	int ret = 0;
>  	uint8_t *block_mark;
> @@ -1708,7 +1708,7 @@ static int mx23_check_transcription_stamp(struct gpmi_nand_data *this)
>  	struct boot_rom_geometry *rom_geo = &this->rom_geometry;
>  	struct device *dev = this->dev;
>  	struct nand_chip *chip = &this->nand;
> -	struct mtd_info *mtd = nand_to_mtd(chip);
> +	struct mtd_info *mtd = nandchip_to_mtd(chip);
>  	unsigned int search_area_size_in_strides;
>  	unsigned int stride;
>  	unsigned int page;
> @@ -1763,7 +1763,7 @@ static int mx23_write_transcription_stamp(struct gpmi_nand_data *this)
>  	struct device *dev = this->dev;
>  	struct boot_rom_geometry *rom_geo = &this->rom_geometry;
>  	struct nand_chip *chip = &this->nand;
> -	struct mtd_info *mtd = nand_to_mtd(chip);
> +	struct mtd_info *mtd = nandchip_to_mtd(chip);
>  	unsigned int block_size_in_pages;
>  	unsigned int search_area_size_in_strides;
>  	unsigned int search_area_size_in_pages;
> @@ -1842,7 +1842,7 @@ static int mx23_boot_init(struct gpmi_nand_data  *this)
>  {
>  	struct device *dev = this->dev;
>  	struct nand_chip *chip = &this->nand;
> -	struct mtd_info *mtd = nand_to_mtd(chip);
> +	struct mtd_info *mtd = nandchip_to_mtd(chip);
>  	unsigned int block_count;
>  	unsigned int block;
>  	int     chipnr;
> @@ -1939,7 +1939,7 @@ static int gpmi_set_geometry(struct gpmi_nand_data *this)
>  static int gpmi_init_last(struct gpmi_nand_data *this)
>  {
>  	struct nand_chip *chip = &this->nand;
> -	struct mtd_info *mtd = nand_to_mtd(chip);
> +	struct mtd_info *mtd = nandchip_to_mtd(chip);
>  	struct nand_ecc_ctrl *ecc = &chip->ecc;
>  	struct bch_geometry *bch_geo = &this->bch_geometry;
>  	int ret;
> @@ -1988,7 +1988,7 @@ static int gpmi_init_last(struct gpmi_nand_data *this)
>  static int gpmi_nand_init(struct gpmi_nand_data *this)
>  {
>  	struct nand_chip *chip = &this->nand;
> -	struct mtd_info  *mtd = nand_to_mtd(chip);
> +	struct mtd_info  *mtd = nandchip_to_mtd(chip);
>  	int ret;
>  
>  	/* init current chip */
> @@ -2135,7 +2135,7 @@ static int gpmi_nand_remove(struct platform_device *pdev)
>  {
>  	struct gpmi_nand_data *this = platform_get_drvdata(pdev);
>  
> -	nand_release(nand_to_mtd(&this->nand));
> +	nand_release(nandchip_to_mtd(&this->nand));
>  	gpmi_free_dma_buffer(this);
>  	release_resources(this);
>  	return 0;
> diff --git a/drivers/mtd/nand/raw/hisi504_nand.c b/drivers/mtd/nand/raw/hisi504_nand.c
> index d09df18..86dd423 100644
> --- a/drivers/mtd/nand/raw/hisi504_nand.c
> +++ b/drivers/mtd/nand/raw/hisi504_nand.c
> @@ -188,7 +188,7 @@ static void wait_controller_finished(struct hinfc_host *host)
>  static void hisi_nfc_dma_transfer(struct hinfc_host *host, int todev)
>  {
>  	struct nand_chip *chip = &host->chip;
> -	struct mtd_info	*mtd = nand_to_mtd(chip);
> +	struct mtd_info	*mtd = nandchip_to_mtd(chip);
>  	unsigned long val;
>  	int ret;
>  
> @@ -260,7 +260,7 @@ static int hisi_nfc_send_cmd_pageprog(struct hinfc_host *host)
>  
>  static int hisi_nfc_send_cmd_readstart(struct hinfc_host *host)
>  {
> -	struct mtd_info	*mtd = nand_to_mtd(&host->chip);
> +	struct mtd_info	*mtd = nandchip_to_mtd(&host->chip);
>  
>  	if ((host->addr_value[0] == host->cache_addr_value[0]) &&
>  	    (host->addr_value[1] == host->cache_addr_value[1]))
> @@ -355,7 +355,7 @@ static int hisi_nfc_send_cmd_reset(struct hinfc_host *host, int chipselect)
>  
>  static void hisi_nfc_select_chip(struct mtd_info *mtd, int chipselect)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	struct hinfc_host *host = nand_get_controller_data(chip);
>  
>  	if (chipselect < 0)
> @@ -366,7 +366,7 @@ static void hisi_nfc_select_chip(struct mtd_info *mtd, int chipselect)
>  
>  static uint8_t hisi_nfc_read_byte(struct mtd_info *mtd)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	struct hinfc_host *host = nand_get_controller_data(chip);
>  
>  	if (host->command == NAND_CMD_STATUS)
> @@ -382,7 +382,7 @@ static uint8_t hisi_nfc_read_byte(struct mtd_info *mtd)
>  
>  static u16 hisi_nfc_read_word(struct mtd_info *mtd)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	struct hinfc_host *host = nand_get_controller_data(chip);
>  
>  	host->offset += 2;
> @@ -392,7 +392,7 @@ static u16 hisi_nfc_read_word(struct mtd_info *mtd)
>  static void
>  hisi_nfc_write_buf(struct mtd_info *mtd, const uint8_t *buf, int len)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	struct hinfc_host *host = nand_get_controller_data(chip);
>  
>  	memcpy(host->buffer + host->offset, buf, len);
> @@ -401,7 +401,7 @@ static u16 hisi_nfc_read_word(struct mtd_info *mtd)
>  
>  static void hisi_nfc_read_buf(struct mtd_info *mtd, uint8_t *buf, int len)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	struct hinfc_host *host = nand_get_controller_data(chip);
>  
>  	memcpy(buf, host->buffer + host->offset, len);
> @@ -410,7 +410,7 @@ static void hisi_nfc_read_buf(struct mtd_info *mtd, uint8_t *buf, int len)
>  
>  static void set_addr(struct mtd_info *mtd, int column, int page_addr)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	struct hinfc_host *host = nand_get_controller_data(chip);
>  	unsigned int command = host->command;
>  
> @@ -446,7 +446,7 @@ static void set_addr(struct mtd_info *mtd, int column, int page_addr)
>  static void hisi_nfc_cmdfunc(struct mtd_info *mtd, unsigned command, int column,
>  		int page_addr)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	struct hinfc_host *host = nand_get_controller_data(chip);
>  	int is_cache_invalid = 1;
>  	unsigned int flag = 0;
> @@ -660,7 +660,7 @@ static int hisi_nfc_ecc_probe(struct hinfc_host *host)
>  	int size, strength, ecc_bits;
>  	struct device *dev = host->dev;
>  	struct nand_chip *chip = &host->chip;
> -	struct mtd_info *mtd = nand_to_mtd(chip);
> +	struct mtd_info *mtd = nandchip_to_mtd(chip);
>  
>  	size = chip->ecc.size;
>  	strength = chip->ecc.strength;
> @@ -728,7 +728,7 @@ static int hisi_nfc_probe(struct platform_device *pdev)
>  
>  	platform_set_drvdata(pdev, host);
>  	chip = &host->chip;
> -	mtd  = nand_to_mtd(chip);
> +	mtd  = nandchip_to_mtd(chip);
>  
>  	irq = platform_get_irq(pdev, 0);
>  	if (irq < 0) {
> @@ -829,7 +829,7 @@ static int hisi_nfc_probe(struct platform_device *pdev)
>  static int hisi_nfc_remove(struct platform_device *pdev)
>  {
>  	struct hinfc_host *host = platform_get_drvdata(pdev);
> -	struct mtd_info *mtd = nand_to_mtd(&host->chip);
> +	struct mtd_info *mtd = nandchip_to_mtd(&host->chip);
>  
>  	nand_release(mtd);
>  
> diff --git a/drivers/mtd/nand/raw/jz4740_nand.c b/drivers/mtd/nand/raw/jz4740_nand.c
> index e813ec1..c2d514e 100644
> --- a/drivers/mtd/nand/raw/jz4740_nand.c
> +++ b/drivers/mtd/nand/raw/jz4740_nand.c
> @@ -75,13 +75,13 @@ struct jz_nand {
>  
>  static inline struct jz_nand *mtd_to_jz_nand(struct mtd_info *mtd)
>  {
> -	return container_of(mtd_to_nand(mtd), struct jz_nand, chip);
> +	return container_of(mtd_to_nandchip(mtd), struct jz_nand, chip);
>  }
>  
>  static void jz_nand_select_chip(struct mtd_info *mtd, int chipnr)
>  {
>  	struct jz_nand *nand = mtd_to_jz_nand(mtd);
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	uint32_t ctrl;
>  	int banknr;
>  
> @@ -103,7 +103,7 @@ static void jz_nand_select_chip(struct mtd_info *mtd, int chipnr)
>  static void jz_nand_cmd_ctrl(struct mtd_info *mtd, int dat, unsigned int ctrl)
>  {
>  	struct jz_nand *nand = mtd_to_jz_nand(mtd);
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	uint32_t reg;
>  	void __iomem *bank_base = nand->bank_base[nand->selected_bank];
>  
> @@ -315,7 +315,7 @@ static int jz_nand_detect_bank(struct platform_device *pdev,
>  	char res_name[6];
>  	uint32_t ctrl;
>  	struct nand_chip *chip = &nand->chip;
> -	struct mtd_info *mtd = nand_to_mtd(chip);
> +	struct mtd_info *mtd = nandchip_to_mtd(chip);
>  
>  	/* Request GPIO port. */
>  	gpio = JZ_GPIO_MEM_CS0 + bank - 1;
> @@ -413,7 +413,7 @@ static int jz_nand_probe(struct platform_device *pdev)
>  	}
>  
>  	chip		= &nand->chip;
> -	mtd		= nand_to_mtd(chip);
> +	mtd		= nandchip_to_mtd(chip);
>  	mtd->dev.parent = &pdev->dev;
>  	mtd->name	= "jz4740-nand";
>  
> @@ -520,7 +520,7 @@ static int jz_nand_remove(struct platform_device *pdev)
>  	struct jz_nand *nand = platform_get_drvdata(pdev);
>  	size_t i;
>  
> -	nand_release(nand_to_mtd(&nand->chip));
> +	nand_release(nandchip_to_mtd(&nand->chip));
>  
>  	/* Deassert and disable all chips */
>  	writel(0, nand->base + JZ_REG_NAND_CTRL);
> diff --git a/drivers/mtd/nand/raw/jz4780_nand.c b/drivers/mtd/nand/raw/jz4780_nand.c
> index e69f6ae..2b3096d 100644
> --- a/drivers/mtd/nand/raw/jz4780_nand.c
> +++ b/drivers/mtd/nand/raw/jz4780_nand.c
> @@ -62,7 +62,7 @@ struct jz4780_nand_chip {
>  
>  static inline struct jz4780_nand_chip *to_jz4780_nand_chip(struct mtd_info *mtd)
>  {
> -	return container_of(mtd_to_nand(mtd), struct jz4780_nand_chip, chip);
> +	return container_of(mtd_to_nandchip(mtd), struct jz4780_nand_chip, chip);
>  }
>  
>  static inline struct jz4780_nand_controller *to_jz4780_nand_controller(struct nand_hw_control *ctrl)
> @@ -160,7 +160,7 @@ static int jz4780_nand_ecc_correct(struct mtd_info *mtd, u8 *dat,
>  static int jz4780_nand_init_ecc(struct jz4780_nand_chip *nand, struct device *dev)
>  {
>  	struct nand_chip *chip = &nand->chip;
> -	struct mtd_info *mtd = nand_to_mtd(chip);
> +	struct mtd_info *mtd = nandchip_to_mtd(chip);
>  	struct jz4780_nand_controller *nfc = to_jz4780_nand_controller(chip->controller);
>  	int eccbytes;
>  
> @@ -262,7 +262,7 @@ static int jz4780_nand_init_chip(struct platform_device *pdev,
>  	}
>  
>  	chip = &nand->chip;
> -	mtd = nand_to_mtd(chip);
> +	mtd = nandchip_to_mtd(chip);
>  	mtd->name = devm_kasprintf(dev, GFP_KERNEL, "%s.%d", dev_name(dev),
>  				   cs->bank);
>  	if (!mtd->name)
> @@ -308,7 +308,7 @@ static void jz4780_nand_cleanup_chips(struct jz4780_nand_controller *nfc)
>  
>  	while (!list_empty(&nfc->chips)) {
>  		chip = list_first_entry(&nfc->chips, struct jz4780_nand_chip, chip_list);
> -		nand_release(nand_to_mtd(&chip->chip));
> +		nand_release(nandchip_to_mtd(&chip->chip));
>  		list_del(&chip->chip_list);
>  	}
>  }
> diff --git a/drivers/mtd/nand/raw/lpc32xx_mlc.c b/drivers/mtd/nand/raw/lpc32xx_mlc.c
> index bffa01c..b5e3787 100644
> --- a/drivers/mtd/nand/raw/lpc32xx_mlc.c
> +++ b/drivers/mtd/nand/raw/lpc32xx_mlc.c
> @@ -141,7 +141,7 @@ struct lpc32xx_nand_cfg_mlc {
>  static int lpc32xx_ooblayout_ecc(struct mtd_info *mtd, int section,
>  				 struct mtd_oob_region *oobregion)
>  {
> -	struct nand_chip *nand_chip = mtd_to_nand(mtd);
> +	struct nand_chip *nand_chip = mtd_to_nandchip(mtd);
>  
>  	if (section >= nand_chip->ecc.steps)
>  		return -ERANGE;
> @@ -155,7 +155,7 @@ static int lpc32xx_ooblayout_ecc(struct mtd_info *mtd, int section,
>  static int lpc32xx_ooblayout_free(struct mtd_info *mtd, int section,
>  				  struct mtd_oob_region *oobregion)
>  {
> -	struct nand_chip *nand_chip = mtd_to_nand(mtd);
> +	struct nand_chip *nand_chip = mtd_to_nandchip(mtd);
>  
>  	if (section >= nand_chip->ecc.steps)
>  		return -ERANGE;
> @@ -288,7 +288,7 @@ static void lpc32xx_nand_setup(struct lpc32xx_nand_host *host)
>  static void lpc32xx_nand_cmd_ctrl(struct mtd_info *mtd, int cmd,
>  				  unsigned int ctrl)
>  {
> -	struct nand_chip *nand_chip = mtd_to_nand(mtd);
> +	struct nand_chip *nand_chip = mtd_to_nandchip(mtd);
>  	struct lpc32xx_nand_host *host = nand_get_controller_data(nand_chip);
>  
>  	if (cmd != NAND_CMD_NONE) {
> @@ -304,7 +304,7 @@ static void lpc32xx_nand_cmd_ctrl(struct mtd_info *mtd, int cmd,
>   */
>  static int lpc32xx_nand_device_ready(struct mtd_info *mtd)
>  {
> -	struct nand_chip *nand_chip = mtd_to_nand(mtd);
> +	struct nand_chip *nand_chip = mtd_to_nandchip(mtd);
>  	struct lpc32xx_nand_host *host = nand_get_controller_data(nand_chip);
>  
>  	if ((readb(MLC_ISR(host->io_base)) &
> @@ -402,7 +402,7 @@ static void lpc32xx_dma_complete_func(void *completion)
>  static int lpc32xx_xmit_dma(struct mtd_info *mtd, void *mem, int len,
>  			    enum dma_transfer_direction dir)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	struct lpc32xx_nand_host *host = nand_get_controller_data(chip);
>  	struct dma_async_tx_descriptor *desc;
>  	int flags = DMA_CTRL_ACK | DMA_PREP_INTERRUPT;
> @@ -579,7 +579,7 @@ static void lpc32xx_ecc_enable(struct mtd_info *mtd, int mode)
>  
>  static int lpc32xx_dma_setup(struct lpc32xx_nand_host *host)
>  {
> -	struct mtd_info *mtd = nand_to_mtd(&host->nand_chip);
> +	struct mtd_info *mtd = nandchip_to_mtd(&host->nand_chip);
>  	dma_cap_mask_t mask;
>  
>  	if (!host->pdata || !host->pdata->dma_filter) {
> @@ -674,7 +674,7 @@ static int lpc32xx_nand_probe(struct platform_device *pdev)
>  	host->io_base_phy = rc->start;
>  
>  	nand_chip = &host->nand_chip;
> -	mtd = nand_to_mtd(nand_chip);
> +	mtd = nandchip_to_mtd(nand_chip);
>  	if (pdev->dev.of_node)
>  		host->ncfg = lpc32xx_parse_dt(&pdev->dev);
>  	if (!host->ncfg) {
> @@ -826,7 +826,7 @@ static int lpc32xx_nand_probe(struct platform_device *pdev)
>  static int lpc32xx_nand_remove(struct platform_device *pdev)
>  {
>  	struct lpc32xx_nand_host *host = platform_get_drvdata(pdev);
> -	struct mtd_info *mtd = nand_to_mtd(&host->nand_chip);
> +	struct mtd_info *mtd = nandchip_to_mtd(&host->nand_chip);
>  
>  	nand_release(mtd);
>  	free_irq(host->irq, host);
> diff --git a/drivers/mtd/nand/raw/lpc32xx_slc.c b/drivers/mtd/nand/raw/lpc32xx_slc.c
> index 7c8402f..b47e3c0 100644
> --- a/drivers/mtd/nand/raw/lpc32xx_slc.c
> +++ b/drivers/mtd/nand/raw/lpc32xx_slc.c
> @@ -282,7 +282,7 @@ static void lpc32xx_nand_cmd_ctrl(struct mtd_info *mtd, int cmd,
>  	unsigned int ctrl)
>  {
>  	uint32_t tmp;
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	struct lpc32xx_nand_host *host = nand_get_controller_data(chip);
>  
>  	/* Does CE state need to be changed? */
> @@ -306,7 +306,7 @@ static void lpc32xx_nand_cmd_ctrl(struct mtd_info *mtd, int cmd,
>   */
>  static int lpc32xx_nand_device_ready(struct mtd_info *mtd)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	struct lpc32xx_nand_host *host = nand_get_controller_data(chip);
>  	int rdy = 0;
>  
> @@ -361,7 +361,7 @@ static int lpc32xx_nand_ecc_calculate(struct mtd_info *mtd,
>   */
>  static uint8_t lpc32xx_nand_read_byte(struct mtd_info *mtd)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	struct lpc32xx_nand_host *host = nand_get_controller_data(chip);
>  
>  	return (uint8_t)readl(SLC_DATA(host->io_base));
> @@ -372,7 +372,7 @@ static uint8_t lpc32xx_nand_read_byte(struct mtd_info *mtd)
>   */
>  static void lpc32xx_nand_read_buf(struct mtd_info *mtd, u_char *buf, int len)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	struct lpc32xx_nand_host *host = nand_get_controller_data(chip);
>  
>  	/* Direct device read with no ECC */
> @@ -385,7 +385,7 @@ static void lpc32xx_nand_read_buf(struct mtd_info *mtd, u_char *buf, int len)
>   */
>  static void lpc32xx_nand_write_buf(struct mtd_info *mtd, const uint8_t *buf, int len)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	struct lpc32xx_nand_host *host = nand_get_controller_data(chip);
>  
>  	/* Direct device write with no ECC */
> @@ -450,7 +450,7 @@ static void lpc32xx_dma_complete_func(void *completion)
>  static int lpc32xx_xmit_dma(struct mtd_info *mtd, dma_addr_t dma,
>  			    void *mem, int len, enum dma_transfer_direction dir)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	struct lpc32xx_nand_host *host = nand_get_controller_data(chip);
>  	struct dma_async_tx_descriptor *desc;
>  	int flags = DMA_CTRL_ACK | DMA_PREP_INTERRUPT;
> @@ -510,7 +510,7 @@ static int lpc32xx_xmit_dma(struct mtd_info *mtd, dma_addr_t dma,
>  static int lpc32xx_xfer(struct mtd_info *mtd, uint8_t *buf, int eccsubpages,
>  			int read)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	struct lpc32xx_nand_host *host = nand_get_controller_data(chip);
>  	int i, status = 0;
>  	unsigned long timeout;
> @@ -736,7 +736,7 @@ static int lpc32xx_nand_write_page_raw_syndrome(struct mtd_info *mtd,
>  
>  static int lpc32xx_nand_dma_setup(struct lpc32xx_nand_host *host)
>  {
> -	struct mtd_info *mtd = nand_to_mtd(&host->nand_chip);
> +	struct mtd_info *mtd = nandchip_to_mtd(&host->nand_chip);
>  	dma_cap_mask_t mask;
>  
>  	if (!host->pdata || !host->pdata->dma_filter) {
> @@ -827,7 +827,7 @@ static int lpc32xx_nand_probe(struct platform_device *pdev)
>  	host->pdata = dev_get_platdata(&pdev->dev);
>  
>  	chip = &host->nand_chip;
> -	mtd = nand_to_mtd(chip);
> +	mtd = nandchip_to_mtd(chip);
>  	nand_set_controller_data(chip, host);
>  	nand_set_flash_node(chip, pdev->dev.of_node);
>  	mtd->owner = THIS_MODULE;
> @@ -952,7 +952,7 @@ static int lpc32xx_nand_remove(struct platform_device *pdev)
>  {
>  	uint32_t tmp;
>  	struct lpc32xx_nand_host *host = platform_get_drvdata(pdev);
> -	struct mtd_info *mtd = nand_to_mtd(&host->nand_chip);
> +	struct mtd_info *mtd = nandchip_to_mtd(&host->nand_chip);
>  
>  	nand_release(mtd);
>  	dma_release_channel(host->dma_chan);
> diff --git a/drivers/mtd/nand/raw/mpc5121_nfc.c b/drivers/mtd/nand/raw/mpc5121_nfc.c
> index 55f1d4a..e6c510f 100644
> --- a/drivers/mtd/nand/raw/mpc5121_nfc.c
> +++ b/drivers/mtd/nand/raw/mpc5121_nfc.c
> @@ -134,7 +134,7 @@ struct mpc5121_nfc_prv {
>  /* Read NFC register */
>  static inline u16 nfc_read(struct mtd_info *mtd, uint reg)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	struct mpc5121_nfc_prv *prv = nand_get_controller_data(chip);
>  
>  	return in_be16(prv->regs + reg);
> @@ -143,7 +143,7 @@ static inline u16 nfc_read(struct mtd_info *mtd, uint reg)
>  /* Write NFC register */
>  static inline void nfc_write(struct mtd_info *mtd, uint reg, u16 val)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	struct mpc5121_nfc_prv *prv = nand_get_controller_data(chip);
>  
>  	out_be16(prv->regs + reg, val);
> @@ -213,7 +213,7 @@ static inline void mpc5121_nfc_send_read_status(struct mtd_info *mtd)
>  static irqreturn_t mpc5121_nfc_irq(int irq, void *data)
>  {
>  	struct mtd_info *mtd = data;
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	struct mpc5121_nfc_prv *prv = nand_get_controller_data(chip);
>  
>  	nfc_set(mtd, NFC_CONFIG1, NFC_INT_MASK);
> @@ -225,7 +225,7 @@ static irqreturn_t mpc5121_nfc_irq(int irq, void *data)
>  /* Wait for operation complete */
>  static void mpc5121_nfc_done(struct mtd_info *mtd)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	struct mpc5121_nfc_prv *prv = nand_get_controller_data(chip);
>  	int rv;
>  
> @@ -245,7 +245,7 @@ static void mpc5121_nfc_done(struct mtd_info *mtd)
>  /* Do address cycle(s) */
>  static void mpc5121_nfc_addr_cycle(struct mtd_info *mtd, int column, int page)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	u32 pagemask = chip->pagemask;
>  
>  	if (column != -1) {
> @@ -280,7 +280,7 @@ static void mpc5121_nfc_select_chip(struct mtd_info *mtd, int chip)
>  /* Init external chip select logic on ADS5121 board */
>  static int ads5121_chipselect_init(struct mtd_info *mtd)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	struct mpc5121_nfc_prv *prv = nand_get_controller_data(chip);
>  	struct device_node *dn;
>  
> @@ -302,7 +302,7 @@ static int ads5121_chipselect_init(struct mtd_info *mtd)
>  /* Control chips select signal on ADS5121 board */
>  static void ads5121_select_chip(struct mtd_info *mtd, int chip)
>  {
> -	struct nand_chip *nand = mtd_to_nand(mtd);
> +	struct nand_chip *nand = mtd_to_nandchip(mtd);
>  	struct mpc5121_nfc_prv *prv = nand_get_controller_data(nand);
>  	u8 v;
>  
> @@ -332,7 +332,7 @@ static int mpc5121_nfc_dev_ready(struct mtd_info *mtd)
>  static void mpc5121_nfc_command(struct mtd_info *mtd, unsigned command,
>  							int column, int page)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	struct mpc5121_nfc_prv *prv = nand_get_controller_data(chip);
>  
>  	prv->column = (column >= 0) ? column : 0;
> @@ -405,7 +405,7 @@ static void mpc5121_nfc_command(struct mtd_info *mtd, unsigned command,
>  static void mpc5121_nfc_copy_spare(struct mtd_info *mtd, uint offset,
>  						u8 *buffer, uint size, int wr)
>  {
> -	struct nand_chip *nand = mtd_to_nand(mtd);
> +	struct nand_chip *nand = mtd_to_nandchip(mtd);
>  	struct mpc5121_nfc_prv *prv = nand_get_controller_data(nand);
>  	uint o, s, sbsize, blksize;
>  
> @@ -457,7 +457,7 @@ static void mpc5121_nfc_copy_spare(struct mtd_info *mtd, uint offset,
>  static void mpc5121_nfc_buf_copy(struct mtd_info *mtd, u_char *buf, int len,
>  									int wr)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	struct mpc5121_nfc_prv *prv = nand_get_controller_data(chip);
>  	uint c = prv->column;
>  	uint l;
> @@ -535,7 +535,7 @@ static u16 mpc5121_nfc_read_word(struct mtd_info *mtd)
>   */
>  static int mpc5121_nfc_read_hw_config(struct mtd_info *mtd)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	struct mpc5121_nfc_prv *prv = nand_get_controller_data(chip);
>  	struct mpc512x_reset_module *rm;
>  	struct device_node *rmnode;
> @@ -614,7 +614,7 @@ static int mpc5121_nfc_read_hw_config(struct mtd_info *mtd)
>  /* Free driver resources */
>  static void mpc5121_nfc_free(struct device *dev, struct mtd_info *mtd)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	struct mpc5121_nfc_prv *prv = nand_get_controller_data(chip);
>  
>  	if (prv->clk)
> @@ -654,7 +654,7 @@ static int mpc5121_nfc_probe(struct platform_device *op)
>  		return -ENOMEM;
>  
>  	chip = &prv->chip;
> -	mtd = nand_to_mtd(chip);
> +	mtd = nandchip_to_mtd(chip);
>  
>  	mtd->dev.parent = dev;
>  	nand_set_controller_data(chip, prv);
> diff --git a/drivers/mtd/nand/raw/mtk_nand.c b/drivers/mtd/nand/raw/mtk_nand.c
> index 3f4a98b..a0a7f6c 100644
> --- a/drivers/mtd/nand/raw/mtk_nand.c
> +++ b/drivers/mtd/nand/raw/mtk_nand.c
> @@ -305,7 +305,7 @@ static int mtk_nfc_send_address(struct mtk_nfc *nfc, int addr)
>  
>  static int mtk_nfc_hw_runtime_config(struct mtd_info *mtd)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	struct mtk_nfc_nand_chip *mtk_nand = to_mtk_nand(chip);
>  	struct mtk_nfc *nfc = nand_get_controller_data(chip);
>  	u32 fmt, spare;
> @@ -418,7 +418,7 @@ static int mtk_nfc_hw_runtime_config(struct mtd_info *mtd)
>  
>  static void mtk_nfc_select_chip(struct mtd_info *mtd, int chip)
>  {
> -	struct nand_chip *nand = mtd_to_nand(mtd);
> +	struct nand_chip *nand = mtd_to_nandchip(mtd);
>  	struct mtk_nfc *nfc = nand_get_controller_data(nand);
>  	struct mtk_nfc_nand_chip *mtk_nand = to_mtk_nand(nand);
>  
> @@ -432,7 +432,7 @@ static void mtk_nfc_select_chip(struct mtd_info *mtd, int chip)
>  
>  static int mtk_nfc_dev_ready(struct mtd_info *mtd)
>  {
> -	struct mtk_nfc *nfc = nand_get_controller_data(mtd_to_nand(mtd));
> +	struct mtk_nfc *nfc = nand_get_controller_data(mtd_to_nandchip(mtd));
>  
>  	if (nfi_readl(nfc, NFI_STA) & STA_BUSY)
>  		return 0;
> @@ -442,7 +442,7 @@ static int mtk_nfc_dev_ready(struct mtd_info *mtd)
>  
>  static void mtk_nfc_cmd_ctrl(struct mtd_info *mtd, int dat, unsigned int ctrl)
>  {
> -	struct mtk_nfc *nfc = nand_get_controller_data(mtd_to_nand(mtd));
> +	struct mtk_nfc *nfc = nand_get_controller_data(mtd_to_nandchip(mtd));
>  
>  	if (ctrl & NAND_ALE) {
>  		mtk_nfc_send_address(nfc, dat);
> @@ -467,7 +467,7 @@ static inline void mtk_nfc_wait_ioready(struct mtk_nfc *nfc)
>  
>  static inline u8 mtk_nfc_read_byte(struct mtd_info *mtd)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	struct mtk_nfc *nfc = nand_get_controller_data(chip);
>  	u32 reg;
>  
> @@ -504,7 +504,7 @@ static void mtk_nfc_read_buf(struct mtd_info *mtd, u8 *buf, int len)
>  
>  static void mtk_nfc_write_byte(struct mtd_info *mtd, u8 byte)
>  {
> -	struct mtk_nfc *nfc = nand_get_controller_data(mtd_to_nand(mtd));
> +	struct mtk_nfc *nfc = nand_get_controller_data(mtd_to_nandchip(mtd));
>  	u32 reg;
>  
>  	reg = nfi_readl(nfc, NFI_STA) & NFI_FSM_MASK;
> @@ -550,7 +550,7 @@ static void mtk_nfc_no_bad_mark_swap(struct mtd_info *a, u8 *b, int c)
>  
>  static void mtk_nfc_bad_mark_swap(struct mtd_info *mtd, u8 *buf, int raw)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	struct mtk_nfc_nand_chip *nand = to_mtk_nand(chip);
>  	u32 bad_pos = nand->bad_mark.pos;
>  
> @@ -565,7 +565,7 @@ static void mtk_nfc_bad_mark_swap(struct mtd_info *mtd, u8 *buf, int raw)
>  static int mtk_nfc_format_subpage(struct mtd_info *mtd, u32 offset,
>  				  u32 len, const u8 *buf)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	struct mtk_nfc_nand_chip *mtk_nand = to_mtk_nand(chip);
>  	struct mtk_nfc *nfc = nand_get_controller_data(chip);
>  	struct mtk_nfc_fdm *fdm = &mtk_nand->fdm;
> @@ -599,7 +599,7 @@ static int mtk_nfc_format_subpage(struct mtd_info *mtd, u32 offset,
>  
>  static void mtk_nfc_format_page(struct mtd_info *mtd, const u8 *buf)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	struct mtk_nfc_nand_chip *mtk_nand = to_mtk_nand(chip);
>  	struct mtk_nfc *nfc = nand_get_controller_data(chip);
>  	struct mtk_nfc_fdm *fdm = &mtk_nand->fdm;
> @@ -812,7 +812,7 @@ static int mtk_nfc_write_oob_std(struct mtd_info *mtd, struct nand_chip *chip,
>  
>  static int mtk_nfc_update_ecc_stats(struct mtd_info *mtd, u8 *buf, u32 sectors)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	struct mtk_nfc *nfc = nand_get_controller_data(chip);
>  	struct mtk_nfc_nand_chip *mtk_nand = to_mtk_nand(chip);
>  	struct mtk_ecc_stats stats;
> @@ -1063,7 +1063,7 @@ static void mtk_nfc_disable_clk(struct mtk_nfc_clk *clk)
>  static int mtk_nfc_ooblayout_free(struct mtd_info *mtd, int section,
>  				  struct mtd_oob_region *oob_region)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	struct mtk_nfc_nand_chip *mtk_nand = to_mtk_nand(chip);
>  	struct mtk_nfc_fdm *fdm = &mtk_nand->fdm;
>  	u32 eccsteps;
> @@ -1082,7 +1082,7 @@ static int mtk_nfc_ooblayout_free(struct mtd_info *mtd, int section,
>  static int mtk_nfc_ooblayout_ecc(struct mtd_info *mtd, int section,
>  				 struct mtd_oob_region *oob_region)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	struct mtk_nfc_nand_chip *mtk_nand = to_mtk_nand(chip);
>  	u32 eccsteps;
>  
> @@ -1103,7 +1103,7 @@ static int mtk_nfc_ooblayout_ecc(struct mtd_info *mtd, int section,
>  
>  static void mtk_nfc_set_fdm(struct mtk_nfc_fdm *fdm, struct mtd_info *mtd)
>  {
> -	struct nand_chip *nand = mtd_to_nand(mtd);
> +	struct nand_chip *nand = mtd_to_nandchip(mtd);
>  	struct mtk_nfc_nand_chip *chip = to_mtk_nand(nand);
>  	u32 ecc_bytes;
>  
> @@ -1120,7 +1120,7 @@ static void mtk_nfc_set_fdm(struct mtk_nfc_fdm *fdm, struct mtd_info *mtd)
>  static void mtk_nfc_set_bad_mark_ctl(struct mtk_nfc_bad_mark_ctl *bm_ctl,
>  				     struct mtd_info *mtd)
>  {
> -	struct nand_chip *nand = mtd_to_nand(mtd);
> +	struct nand_chip *nand = mtd_to_nandchip(mtd);
>  
>  	if (mtd->writesize == 512) {
>  		bm_ctl->bm_swap = mtk_nfc_no_bad_mark_swap;
> @@ -1133,7 +1133,7 @@ static void mtk_nfc_set_bad_mark_ctl(struct mtk_nfc_bad_mark_ctl *bm_ctl,
>  
>  static void mtk_nfc_set_spare_per_sector(u32 *sps, struct mtd_info *mtd)
>  {
> -	struct nand_chip *nand = mtd_to_nand(mtd);
> +	struct nand_chip *nand = mtd_to_nandchip(mtd);
>  	u32 spare[] = {16, 26, 27, 28, 32, 36, 40, 44,
>  			48, 49, 50, 51, 52, 62, 63, 64};
>  	u32 eccsteps, i;
> @@ -1163,7 +1163,7 @@ static void mtk_nfc_set_spare_per_sector(u32 *sps, struct mtd_info *mtd)
>  
>  static int mtk_nfc_ecc_init(struct device *dev, struct mtd_info *mtd)
>  {
> -	struct nand_chip *nand = mtd_to_nand(mtd);
> +	struct nand_chip *nand = mtd_to_nandchip(mtd);
>  	u32 spare;
>  	int free;
>  
> @@ -1287,7 +1287,7 @@ static int mtk_nfc_nand_chip_init(struct device *dev, struct mtk_nfc *nfc,
>  	nand->ecc.read_oob_raw = mtk_nfc_read_oob_std;
>  	nand->ecc.read_oob = mtk_nfc_read_oob_std;
>  
> -	mtd = nand_to_mtd(nand);
> +	mtd = nandchip_to_mtd(nand);
>  	mtd->owner = THIS_MODULE;
>  	mtd->dev.parent = dev;
>  	mtd->name = MTK_NAME;
> @@ -1450,7 +1450,7 @@ static int mtk_nfc_remove(struct platform_device *pdev)
>  	while (!list_empty(&nfc->chips)) {
>  		chip = list_first_entry(&nfc->chips, struct mtk_nfc_nand_chip,
>  					node);
> -		nand_release(nand_to_mtd(&chip->nand));
> +		nand_release(nandchip_to_mtd(&chip->nand));
>  		list_del(&chip->node);
>  	}
>  
> @@ -1490,7 +1490,7 @@ static int mtk_nfc_resume(struct device *dev)
>  	/* reset NAND chip if VCC was powered off */
>  	list_for_each_entry(chip, &nfc->chips, node) {
>  		nand = &chip->nand;
> -		mtd = nand_to_mtd(nand);
> +		mtd = nandchip_to_mtd(nand);
>  		for (i = 0; i < chip->nsels; i++) {
>  			nand->select_chip(mtd, i);
>  			nand->cmdfunc(mtd, NAND_CMD_RESET, -1, -1);
> diff --git a/drivers/mtd/nand/raw/mxc_nand.c b/drivers/mtd/nand/raw/mxc_nand.c
> index 42bff4a..c50a850 100644
> --- a/drivers/mtd/nand/raw/mxc_nand.c
> +++ b/drivers/mtd/nand/raw/mxc_nand.c
> @@ -466,7 +466,7 @@ static void send_addr_v1_v2(struct mxc_nand_host *host, uint16_t addr, int islas
>  
>  static void send_page_v3(struct mtd_info *mtd, unsigned int ops)
>  {
> -	struct nand_chip *nand_chip = mtd_to_nand(mtd);
> +	struct nand_chip *nand_chip = mtd_to_nandchip(mtd);
>  	struct mxc_nand_host *host = nand_get_controller_data(nand_chip);
>  	uint32_t tmp;
>  
> @@ -482,7 +482,7 @@ static void send_page_v3(struct mtd_info *mtd, unsigned int ops)
>  
>  static void send_page_v2(struct mtd_info *mtd, unsigned int ops)
>  {
> -	struct nand_chip *nand_chip = mtd_to_nand(mtd);
> +	struct nand_chip *nand_chip = mtd_to_nandchip(mtd);
>  	struct mxc_nand_host *host = nand_get_controller_data(nand_chip);
>  
>  	/* NANDFC buffer 0 is used for page read/write */
> @@ -496,7 +496,7 @@ static void send_page_v2(struct mtd_info *mtd, unsigned int ops)
>  
>  static void send_page_v1(struct mtd_info *mtd, unsigned int ops)
>  {
> -	struct nand_chip *nand_chip = mtd_to_nand(mtd);
> +	struct nand_chip *nand_chip = mtd_to_nandchip(mtd);
>  	struct mxc_nand_host *host = nand_get_controller_data(nand_chip);
>  	int bufs, i;
>  
> @@ -597,7 +597,7 @@ static void mxc_nand_enable_hwecc(struct mtd_info *mtd, int mode)
>  static int mxc_nand_correct_data_v1(struct mtd_info *mtd, u_char *dat,
>  				 u_char *read_ecc, u_char *calc_ecc)
>  {
> -	struct nand_chip *nand_chip = mtd_to_nand(mtd);
> +	struct nand_chip *nand_chip = mtd_to_nandchip(mtd);
>  	struct mxc_nand_host *host = nand_get_controller_data(nand_chip);
>  
>  	/*
> @@ -618,7 +618,7 @@ static int mxc_nand_correct_data_v1(struct mtd_info *mtd, u_char *dat,
>  static int mxc_nand_correct_data_v2_v3(struct mtd_info *mtd, u_char *dat,
>  				 u_char *read_ecc, u_char *calc_ecc)
>  {
> -	struct nand_chip *nand_chip = mtd_to_nand(mtd);
> +	struct nand_chip *nand_chip = mtd_to_nandchip(mtd);
>  	struct mxc_nand_host *host = nand_get_controller_data(nand_chip);
>  	u32 ecc_stat, err;
>  	int no_subpages = 1;
> @@ -656,7 +656,7 @@ static int mxc_nand_calculate_ecc(struct mtd_info *mtd, const u_char *dat,
>  
>  static u_char mxc_nand_read_byte(struct mtd_info *mtd)
>  {
> -	struct nand_chip *nand_chip = mtd_to_nand(mtd);
> +	struct nand_chip *nand_chip = mtd_to_nandchip(mtd);
>  	struct mxc_nand_host *host = nand_get_controller_data(nand_chip);
>  	uint8_t ret;
>  
> @@ -680,7 +680,7 @@ static u_char mxc_nand_read_byte(struct mtd_info *mtd)
>  
>  static uint16_t mxc_nand_read_word(struct mtd_info *mtd)
>  {
> -	struct nand_chip *nand_chip = mtd_to_nand(mtd);
> +	struct nand_chip *nand_chip = mtd_to_nandchip(mtd);
>  	struct mxc_nand_host *host = nand_get_controller_data(nand_chip);
>  	uint16_t ret;
>  
> @@ -696,7 +696,7 @@ static uint16_t mxc_nand_read_word(struct mtd_info *mtd)
>  static void mxc_nand_write_buf(struct mtd_info *mtd,
>  				const u_char *buf, int len)
>  {
> -	struct nand_chip *nand_chip = mtd_to_nand(mtd);
> +	struct nand_chip *nand_chip = mtd_to_nandchip(mtd);
>  	struct mxc_nand_host *host = nand_get_controller_data(nand_chip);
>  	u16 col = host->buf_start;
>  	int n = mtd->oobsize + mtd->writesize - col;
> @@ -714,7 +714,7 @@ static void mxc_nand_write_buf(struct mtd_info *mtd,
>   */
>  static void mxc_nand_read_buf(struct mtd_info *mtd, u_char *buf, int len)
>  {
> -	struct nand_chip *nand_chip = mtd_to_nand(mtd);
> +	struct nand_chip *nand_chip = mtd_to_nandchip(mtd);
>  	struct mxc_nand_host *host = nand_get_controller_data(nand_chip);
>  	u16 col = host->buf_start;
>  	int n = mtd->oobsize + mtd->writesize - col;
> @@ -730,7 +730,7 @@ static void mxc_nand_read_buf(struct mtd_info *mtd, u_char *buf, int len)
>   * deselect of the NAND chip */
>  static void mxc_nand_select_chip_v1_v3(struct mtd_info *mtd, int chip)
>  {
> -	struct nand_chip *nand_chip = mtd_to_nand(mtd);
> +	struct nand_chip *nand_chip = mtd_to_nandchip(mtd);
>  	struct mxc_nand_host *host = nand_get_controller_data(nand_chip);
>  
>  	if (chip == -1) {
> @@ -751,7 +751,7 @@ static void mxc_nand_select_chip_v1_v3(struct mtd_info *mtd, int chip)
>  
>  static void mxc_nand_select_chip_v2(struct mtd_info *mtd, int chip)
>  {
> -	struct nand_chip *nand_chip = mtd_to_nand(mtd);
> +	struct nand_chip *nand_chip = mtd_to_nandchip(mtd);
>  	struct mxc_nand_host *host = nand_get_controller_data(nand_chip);
>  
>  	if (chip == -1) {
> @@ -784,7 +784,7 @@ static void mxc_nand_select_chip_v2(struct mtd_info *mtd, int chip)
>   */
>  static void copy_spare(struct mtd_info *mtd, bool bfrom)
>  {
> -	struct nand_chip *this = mtd_to_nand(mtd);
> +	struct nand_chip *this = mtd_to_nandchip(mtd);
>  	struct mxc_nand_host *host = nand_get_controller_data(this);
>  	u16 i, oob_chunk_size;
>  	u16 num_chunks = mtd->writesize / 512;
> @@ -827,7 +827,7 @@ static void copy_spare(struct mtd_info *mtd, bool bfrom)
>   */
>  static void mxc_do_addr_cycle(struct mtd_info *mtd, int column, int page_addr)
>  {
> -	struct nand_chip *nand_chip = mtd_to_nand(mtd);
> +	struct nand_chip *nand_chip = mtd_to_nandchip(mtd);
>  	struct mxc_nand_host *host = nand_get_controller_data(nand_chip);
>  
>  	/* Write out column address, if necessary */
> @@ -880,7 +880,7 @@ static void mxc_do_addr_cycle(struct mtd_info *mtd, int column, int page_addr)
>  static int mxc_v1_ooblayout_ecc(struct mtd_info *mtd, int section,
>  				struct mtd_oob_region *oobregion)
>  {
> -	struct nand_chip *nand_chip = mtd_to_nand(mtd);
> +	struct nand_chip *nand_chip = mtd_to_nandchip(mtd);
>  
>  	if (section >= nand_chip->ecc.steps)
>  		return -ERANGE;
> @@ -894,7 +894,7 @@ static int mxc_v1_ooblayout_ecc(struct mtd_info *mtd, int section,
>  static int mxc_v1_ooblayout_free(struct mtd_info *mtd, int section,
>  				 struct mtd_oob_region *oobregion)
>  {
> -	struct nand_chip *nand_chip = mtd_to_nand(mtd);
> +	struct nand_chip *nand_chip = mtd_to_nandchip(mtd);
>  
>  	if (section > nand_chip->ecc.steps)
>  		return -ERANGE;
> @@ -928,7 +928,7 @@ static int mxc_v1_ooblayout_free(struct mtd_info *mtd, int section,
>  static int mxc_v2_ooblayout_ecc(struct mtd_info *mtd, int section,
>  				struct mtd_oob_region *oobregion)
>  {
> -	struct nand_chip *nand_chip = mtd_to_nand(mtd);
> +	struct nand_chip *nand_chip = mtd_to_nandchip(mtd);
>  	int stepsize = nand_chip->ecc.bytes == 9 ? 16 : 26;
>  
>  	if (section >= nand_chip->ecc.steps)
> @@ -943,7 +943,7 @@ static int mxc_v2_ooblayout_ecc(struct mtd_info *mtd, int section,
>  static int mxc_v2_ooblayout_free(struct mtd_info *mtd, int section,
>  				 struct mtd_oob_region *oobregion)
>  {
> -	struct nand_chip *nand_chip = mtd_to_nand(mtd);
> +	struct nand_chip *nand_chip = mtd_to_nandchip(mtd);
>  	int stepsize = nand_chip->ecc.bytes == 9 ? 16 : 26;
>  
>  	if (section >= nand_chip->ecc.steps)
> @@ -989,7 +989,7 @@ static int get_eccsize(struct mtd_info *mtd)
>  
>  static void preset_v1(struct mtd_info *mtd)
>  {
> -	struct nand_chip *nand_chip = mtd_to_nand(mtd);
> +	struct nand_chip *nand_chip = mtd_to_nandchip(mtd);
>  	struct mxc_nand_host *host = nand_get_controller_data(nand_chip);
>  	uint16_t config1 = 0;
>  
> @@ -1019,7 +1019,7 @@ static int mxc_nand_v2_setup_data_interface(struct mtd_info *mtd,
>  					const struct nand_data_interface *conf,
>  					bool check_only)
>  {
> -	struct nand_chip *nand_chip = mtd_to_nand(mtd);
> +	struct nand_chip *nand_chip = mtd_to_nandchip(mtd);
>  	struct mxc_nand_host *host = nand_get_controller_data(nand_chip);
>  	int tRC_min_ns, tRC_ps, ret;
>  	unsigned long rate, rate_round;
> @@ -1093,7 +1093,7 @@ static int mxc_nand_v2_setup_data_interface(struct mtd_info *mtd,
>  
>  static void preset_v2(struct mtd_info *mtd)
>  {
> -	struct nand_chip *nand_chip = mtd_to_nand(mtd);
> +	struct nand_chip *nand_chip = mtd_to_nandchip(mtd);
>  	struct mxc_nand_host *host = nand_get_controller_data(nand_chip);
>  	uint16_t config1 = 0;
>  
> @@ -1139,7 +1139,7 @@ static void preset_v2(struct mtd_info *mtd)
>  
>  static void preset_v3(struct mtd_info *mtd)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	struct mxc_nand_host *host = nand_get_controller_data(chip);
>  	uint32_t config2, config3;
>  	int i, addr_phases;
> @@ -1210,7 +1210,7 @@ static void preset_v3(struct mtd_info *mtd)
>  static void mxc_nand_command(struct mtd_info *mtd, unsigned command,
>  				int column, int page_addr)
>  {
> -	struct nand_chip *nand_chip = mtd_to_nand(mtd);
> +	struct nand_chip *nand_chip = mtd_to_nandchip(mtd);
>  	struct mxc_nand_host *host = nand_get_controller_data(nand_chip);
>  
>  	pr_debug("mxc_nand_command (cmd = 0x%x, col = 0x%x, page = 0x%x)\n",
> @@ -1322,7 +1322,7 @@ static int mxc_nand_onfi_set_features(struct mtd_info *mtd,
>  				      struct nand_chip *chip, int addr,
>  				      u8 *subfeature_param)
>  {
> -	struct nand_chip *nand_chip = mtd_to_nand(mtd);
> +	struct nand_chip *nand_chip = mtd_to_nandchip(mtd);
>  	struct mxc_nand_host *host = nand_get_controller_data(nand_chip);
>  	int i;
>  
> @@ -1348,7 +1348,7 @@ static int mxc_nand_onfi_get_features(struct mtd_info *mtd,
>  				      struct nand_chip *chip, int addr,
>  				      u8 *subfeature_param)
>  {
> -	struct nand_chip *nand_chip = mtd_to_nand(mtd);
> +	struct nand_chip *nand_chip = mtd_to_nandchip(mtd);
>  	struct mxc_nand_host *host = nand_get_controller_data(nand_chip);
>  	int i;
>  
> @@ -1629,7 +1629,7 @@ static int mxcnd_probe(struct platform_device *pdev)
>  	host->dev = &pdev->dev;
>  	/* structures must be linked */
>  	this = &host->nand;
> -	mtd = nand_to_mtd(this);
> +	mtd = nandchip_to_mtd(this);
>  	mtd->dev.parent = &pdev->dev;
>  	mtd->name = DRIVER_NAME;
>  
> @@ -1832,7 +1832,7 @@ static int mxcnd_remove(struct platform_device *pdev)
>  {
>  	struct mxc_nand_host *host = platform_get_drvdata(pdev);
>  
> -	nand_release(nand_to_mtd(&host->nand));
> +	nand_release(nandchip_to_mtd(&host->nand));
>  	if (host->clk_act)
>  		clk_disable_unprepare(host->clk);
>  
> diff --git a/drivers/mtd/nand/raw/nand_amd.c b/drivers/mtd/nand/raw/nand_amd.c
> index 22f060f..51e9ba7 100644
> --- a/drivers/mtd/nand/raw/nand_amd.c
> +++ b/drivers/mtd/nand/raw/nand_amd.c
> @@ -19,7 +19,7 @@
>  
>  static void amd_nand_decode_id(struct nand_chip *chip)
>  {
> -	struct mtd_info *mtd = nand_to_mtd(chip);
> +	struct mtd_info *mtd = nandchip_to_mtd(chip);
>  
>  	nand_decode_ext_id(chip);
>  
> diff --git a/drivers/mtd/nand/raw/nand_base.c b/drivers/mtd/nand/raw/nand_base.c
> index 730165b..a113cfb 100644
> --- a/drivers/mtd/nand/raw/nand_base.c
> +++ b/drivers/mtd/nand/raw/nand_base.c
> @@ -57,7 +57,7 @@ static int nand_do_write_oob(struct mtd_info *mtd, loff_t to,
>  static int nand_ooblayout_ecc_sp(struct mtd_info *mtd, int section,
>  				 struct mtd_oob_region *oobregion)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	struct nand_ecc_ctrl *ecc = &chip->ecc;
>  
>  	if (section > 1)
> @@ -106,7 +106,7 @@ static int nand_ooblayout_free_sp(struct mtd_info *mtd, int section,
>  static int nand_ooblayout_ecc_lp(struct mtd_info *mtd, int section,
>  				 struct mtd_oob_region *oobregion)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	struct nand_ecc_ctrl *ecc = &chip->ecc;
>  
>  	if (section)
> @@ -121,7 +121,7 @@ static int nand_ooblayout_ecc_lp(struct mtd_info *mtd, int section,
>  static int nand_ooblayout_free_lp(struct mtd_info *mtd, int section,
>  				  struct mtd_oob_region *oobregion)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	struct nand_ecc_ctrl *ecc = &chip->ecc;
>  
>  	if (section)
> @@ -146,7 +146,7 @@ static int nand_ooblayout_free_lp(struct mtd_info *mtd, int section,
>  static int nand_ooblayout_ecc_lp_hamming(struct mtd_info *mtd, int section,
>  					 struct mtd_oob_region *oobregion)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	struct nand_ecc_ctrl *ecc = &chip->ecc;
>  
>  	if (section)
> @@ -173,7 +173,7 @@ static int nand_ooblayout_ecc_lp_hamming(struct mtd_info *mtd, int section,
>  static int nand_ooblayout_free_lp_hamming(struct mtd_info *mtd, int section,
>  					  struct mtd_oob_region *oobregion)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	struct nand_ecc_ctrl *ecc = &chip->ecc;
>  	int ecc_offset = 0;
>  
> @@ -210,7 +210,7 @@ static int nand_ooblayout_free_lp_hamming(struct mtd_info *mtd, int section,
>  static int check_offs_len(struct mtd_info *mtd,
>  					loff_t ofs, uint64_t len)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	int ret = 0;
>  
>  	/* Start address must align on block boundary */
> @@ -236,7 +236,7 @@ static int check_offs_len(struct mtd_info *mtd,
>   */
>  static void nand_release_device(struct mtd_info *mtd)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  
>  	/* Release the controller and the chip */
>  	spin_lock(&chip->controller->lock);
> @@ -254,7 +254,7 @@ static void nand_release_device(struct mtd_info *mtd)
>   */
>  static uint8_t nand_read_byte(struct mtd_info *mtd)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	return readb(chip->IO_ADDR_R);
>  }
>  
> @@ -267,7 +267,7 @@ static uint8_t nand_read_byte(struct mtd_info *mtd)
>   */
>  static uint8_t nand_read_byte16(struct mtd_info *mtd)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	return (uint8_t) cpu_to_le16(readw(chip->IO_ADDR_R));
>  }
>  
> @@ -279,7 +279,7 @@ static uint8_t nand_read_byte16(struct mtd_info *mtd)
>   */
>  static u16 nand_read_word(struct mtd_info *mtd)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	return readw(chip->IO_ADDR_R);
>  }
>  
> @@ -292,7 +292,7 @@ static u16 nand_read_word(struct mtd_info *mtd)
>   */
>  static void nand_select_chip(struct mtd_info *mtd, int chipnr)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  
>  	switch (chipnr) {
>  	case -1:
> @@ -315,7 +315,7 @@ static void nand_select_chip(struct mtd_info *mtd, int chipnr)
>   */
>  static void nand_write_byte(struct mtd_info *mtd, uint8_t byte)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  
>  	chip->write_buf(mtd, &byte, 1);
>  }
> @@ -329,7 +329,7 @@ static void nand_write_byte(struct mtd_info *mtd, uint8_t byte)
>   */
>  static void nand_write_byte16(struct mtd_info *mtd, uint8_t byte)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	uint16_t word = byte;
>  
>  	/*
> @@ -361,7 +361,7 @@ static void nand_write_byte16(struct mtd_info *mtd, uint8_t byte)
>   */
>  static void nand_write_buf(struct mtd_info *mtd, const uint8_t *buf, int len)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  
>  	iowrite8_rep(chip->IO_ADDR_W, buf, len);
>  }
> @@ -376,7 +376,7 @@ static void nand_write_buf(struct mtd_info *mtd, const uint8_t *buf, int len)
>   */
>  static void nand_read_buf(struct mtd_info *mtd, uint8_t *buf, int len)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  
>  	ioread8_rep(chip->IO_ADDR_R, buf, len);
>  }
> @@ -391,7 +391,7 @@ static void nand_read_buf(struct mtd_info *mtd, uint8_t *buf, int len)
>   */
>  static void nand_write_buf16(struct mtd_info *mtd, const uint8_t *buf, int len)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	u16 *p = (u16 *) buf;
>  
>  	iowrite16_rep(chip->IO_ADDR_W, p, len >> 1);
> @@ -407,7 +407,7 @@ static void nand_write_buf16(struct mtd_info *mtd, const uint8_t *buf, int len)
>   */
>  static void nand_read_buf16(struct mtd_info *mtd, uint8_t *buf, int len)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	u16 *p = (u16 *) buf;
>  
>  	ioread16_rep(chip->IO_ADDR_R, p, len >> 1);
> @@ -423,7 +423,7 @@ static void nand_read_buf16(struct mtd_info *mtd, uint8_t *buf, int len)
>  static int nand_block_bad(struct mtd_info *mtd, loff_t ofs)
>  {
>  	int page, page_end, res;
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	u8 bad;
>  
>  	if (chip->bbt_options & NAND_BBT_SCANLASTPAGE)
> @@ -461,7 +461,7 @@ static int nand_block_bad(struct mtd_info *mtd, loff_t ofs)
>   */
>  static int nand_default_block_markbad(struct mtd_info *mtd, loff_t ofs)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	struct mtd_oob_ops ops;
>  	uint8_t buf[2] = { 0, 0 };
>  	int ret = 0, res, i = 0;
> @@ -511,7 +511,7 @@ static int nand_default_block_markbad(struct mtd_info *mtd, loff_t ofs)
>  */
>  static int nand_block_markbad_lowlevel(struct mtd_info *mtd, loff_t ofs)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	int res, ret = 0;
>  
>  	if (!(chip->bbt_options & NAND_BBT_NO_OOB_BBM)) {
> @@ -552,7 +552,7 @@ static int nand_block_markbad_lowlevel(struct mtd_info *mtd, loff_t ofs)
>   */
>  static int nand_check_wp(struct mtd_info *mtd)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  
>  	/* Broken xD cards report WP despite being writable */
>  	if (chip->options & NAND_BROKEN_XD)
> @@ -572,7 +572,7 @@ static int nand_check_wp(struct mtd_info *mtd)
>   */
>  static int nand_block_isreserved(struct mtd_info *mtd, loff_t ofs)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  
>  	if (!chip->bbt)
>  		return 0;
> @@ -591,7 +591,7 @@ static int nand_block_isreserved(struct mtd_info *mtd, loff_t ofs)
>   */
>  static int nand_block_checkbad(struct mtd_info *mtd, loff_t ofs, int allowbbt)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  
>  	if (!chip->bbt)
>  		return chip->block_bad(mtd, ofs);
> @@ -610,7 +610,7 @@ static int nand_block_checkbad(struct mtd_info *mtd, loff_t ofs, int allowbbt)
>   */
>  static void panic_nand_wait_ready(struct mtd_info *mtd, unsigned long timeo)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	int i;
>  
>  	/* Wait for the device to get ready */
> @@ -630,7 +630,7 @@ static void panic_nand_wait_ready(struct mtd_info *mtd, unsigned long timeo)
>   */
>  void nand_wait_ready(struct mtd_info *mtd)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	unsigned long timeo = 400;
>  
>  	if (in_interrupt() || oops_in_progress)
> @@ -658,7 +658,7 @@ void nand_wait_ready(struct mtd_info *mtd)
>   */
>  static void nand_wait_status_ready(struct mtd_info *mtd, unsigned long timeo)
>  {
> -	register struct nand_chip *chip = mtd_to_nand(mtd);
> +	register struct nand_chip *chip = mtd_to_nandchip(mtd);
>  
>  	timeo = jiffies + msecs_to_jiffies(timeo);
>  	do {
> @@ -681,7 +681,7 @@ static void nand_wait_status_ready(struct mtd_info *mtd, unsigned long timeo)
>  static void nand_command(struct mtd_info *mtd, unsigned int command,
>  			 int column, int page_addr)
>  {
> -	register struct nand_chip *chip = mtd_to_nand(mtd);
> +	register struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	int ctrl = NAND_CTRL_CLE | NAND_CTRL_CHANGE;
>  
>  	/* Write out the command to the device */
> @@ -805,7 +805,7 @@ static void nand_ccs_delay(struct nand_chip *chip)
>  static void nand_command_lp(struct mtd_info *mtd, unsigned int command,
>  			    int column, int page_addr)
>  {
> -	register struct nand_chip *chip = mtd_to_nand(mtd);
> +	register struct nand_chip *chip = mtd_to_nandchip(mtd);
>  
>  	/* Emulate NAND_CMD_READOOB */
>  	if (command == NAND_CMD_READOOB) {
> @@ -939,7 +939,7 @@ static void panic_nand_get_device(struct nand_chip *chip,
>  static int
>  nand_get_device(struct mtd_info *mtd, int new_state)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	spinlock_t *lock = &chip->controller->lock;
>  	wait_queue_head_t *wq = &chip->controller->wq;
>  	DECLARE_WAITQUEUE(wait, current);
> @@ -1049,7 +1049,7 @@ static int nand_wait(struct mtd_info *mtd, struct nand_chip *chip)
>   */
>  static int nand_reset_data_interface(struct nand_chip *chip)
>  {
> -	struct mtd_info *mtd = nand_to_mtd(chip);
> +	struct mtd_info *mtd = nandchip_to_mtd(chip);
>  	const struct nand_data_interface *conf;
>  	int ret;
>  
> @@ -1092,7 +1092,7 @@ static int nand_reset_data_interface(struct nand_chip *chip)
>   */
>  static int nand_setup_data_interface(struct nand_chip *chip)
>  {
> -	struct mtd_info *mtd = nand_to_mtd(chip);
> +	struct mtd_info *mtd = nandchip_to_mtd(chip);
>  	int ret;
>  
>  	if (!chip->setup_data_interface || !chip->data_interface)
> @@ -1135,7 +1135,7 @@ static int nand_setup_data_interface(struct nand_chip *chip)
>   */
>  static int nand_init_data_interface(struct nand_chip *chip)
>  {
> -	struct mtd_info *mtd = nand_to_mtd(chip);
> +	struct mtd_info *mtd = nandchip_to_mtd(chip);
>  	int modes, mode, ret;
>  
>  	if (!chip->setup_data_interface)
> @@ -1190,7 +1190,7 @@ static void nand_release_data_interface(struct nand_chip *chip)
>   */
>  int nand_reset(struct nand_chip *chip, int chipnr)
>  {
> -	struct mtd_info *mtd = nand_to_mtd(chip);
> +	struct mtd_info *mtd = nandchip_to_mtd(chip);
>  	int ret;
>  
>  	ret = nand_reset_data_interface(chip);
> @@ -1231,7 +1231,7 @@ static int __nand_unlock(struct mtd_info *mtd, loff_t ofs,
>  {
>  	int ret = 0;
>  	int status, page;
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  
>  	/* Submit address of first page to unlock */
>  	page = ofs >> chip->page_shift;
> @@ -1266,7 +1266,7 @@ int nand_unlock(struct mtd_info *mtd, loff_t ofs, uint64_t len)
>  {
>  	int ret = 0;
>  	int chipnr;
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  
>  	pr_debug("%s: start = 0x%012llx, len = %llu\n",
>  			__func__, (unsigned long long)ofs, len);
> @@ -1329,7 +1329,7 @@ int nand_lock(struct mtd_info *mtd, loff_t ofs, uint64_t len)
>  {
>  	int ret = 0;
>  	int chipnr, status, page;
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  
>  	pr_debug("%s: start = 0x%012llx, len = %llu\n",
>  			__func__, (unsigned long long)ofs, len);
> @@ -1935,7 +1935,7 @@ static int nand_read_page_syndrome(struct mtd_info *mtd, struct nand_chip *chip,
>  static uint8_t *nand_transfer_oob(struct mtd_info *mtd, uint8_t *oob,
>  				  struct mtd_oob_ops *ops, size_t len)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	int ret;
>  
>  	switch (ops->mode) {
> @@ -1968,7 +1968,7 @@ static uint8_t *nand_transfer_oob(struct mtd_info *mtd, uint8_t *oob,
>   */
>  static int nand_setup_read_retry(struct mtd_info *mtd, int retry_mode)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  
>  	pr_debug("setting READ RETRY mode %d\n", retry_mode);
>  
> @@ -1993,7 +1993,7 @@ static int nand_do_read_ops(struct mtd_info *mtd, loff_t from,
>  			    struct mtd_oob_ops *ops)
>  {
>  	int chipnr, page, realpage, col, bytes, aligned, oob_required;
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	int ret = 0;
>  	uint32_t readlen = ops->len;
>  	uint32_t oobreadlen = ops->ooblen;
> @@ -2176,8 +2176,8 @@ static int nand_do_read_ops(struct mtd_info *mtd, loff_t from,
>   *
>   * Get hold of the chip and call nand_do_read.
>   */
> -static int nand_read(struct mtd_info *mtd, loff_t from, size_t len,
> -		     size_t *retlen, uint8_t *buf)
> +static int nandc_read(struct mtd_info *mtd, loff_t from, size_t len,
> +		      size_t *retlen, uint8_t *buf)
>  {
>  	struct mtd_oob_ops ops;
>  	int ret;
> @@ -2340,7 +2340,7 @@ static int nand_do_read_oob(struct mtd_info *mtd, loff_t from,
>  			    struct mtd_oob_ops *ops)
>  {
>  	int page, realpage, chipnr;
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	struct mtd_ecc_stats stats;
>  	int readlen = ops->ooblen;
>  	int len;
> @@ -2785,7 +2785,7 @@ static int nand_write_page(struct mtd_info *mtd, struct nand_chip *chip,
>  static uint8_t *nand_fill_oob(struct mtd_info *mtd, uint8_t *oob, size_t len,
>  			      struct mtd_oob_ops *ops)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	int ret;
>  
>  	/*
> @@ -2827,7 +2827,7 @@ static int nand_do_write_ops(struct mtd_info *mtd, loff_t to,
>  			     struct mtd_oob_ops *ops)
>  {
>  	int chipnr, realpage, page, blockmask, column;
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	uint32_t writelen = ops->len;
>  
>  	uint32_t oobwritelen = ops->ooblen;
> @@ -2959,7 +2959,7 @@ static int nand_do_write_ops(struct mtd_info *mtd, loff_t to,
>  static int panic_nand_write(struct mtd_info *mtd, loff_t to, size_t len,
>  			    size_t *retlen, const uint8_t *buf)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	struct mtd_oob_ops ops;
>  	int ret;
>  
> @@ -2990,8 +2990,8 @@ static int panic_nand_write(struct mtd_info *mtd, loff_t to, size_t len,
>   *
>   * NAND write with ECC.
>   */
> -static int nand_write(struct mtd_info *mtd, loff_t to, size_t len,
> -			  size_t *retlen, const uint8_t *buf)
> +static int nandc_write(struct mtd_info *mtd, loff_t to, size_t len,
> +		       size_t *retlen, const uint8_t *buf)
>  {
>  	struct mtd_oob_ops ops;
>  	int ret;
> @@ -3019,7 +3019,7 @@ static int nand_do_write_oob(struct mtd_info *mtd, loff_t to,
>  			     struct mtd_oob_ops *ops)
>  {
>  	int chipnr, page, status, len;
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  
>  	pr_debug("%s: to = 0x%08x, len = %i\n",
>  			 __func__, (unsigned int)to, (int)ops->ooblen);
> @@ -3142,7 +3142,7 @@ static int nand_write_oob(struct mtd_info *mtd, loff_t to,
>   */
>  static int single_erase(struct mtd_info *mtd, int page)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	/* Send commands to erase a block */
>  	chip->cmdfunc(mtd, NAND_CMD_ERASE1, -1, page);
>  	chip->cmdfunc(mtd, NAND_CMD_ERASE2, -1, -1);
> @@ -3157,7 +3157,7 @@ static int single_erase(struct mtd_info *mtd, int page)
>   *
>   * Erase one ore more blocks.
>   */
> -static int nand_erase(struct mtd_info *mtd, struct erase_info *instr)
> +static int nandc_erase(struct mtd_info *mtd, struct erase_info *instr)
>  {
>  	return nand_erase_nand(mtd, instr, 0);
>  }
> @@ -3174,7 +3174,7 @@ int nand_erase_nand(struct mtd_info *mtd, struct erase_info *instr,
>  		    int allowbbt)
>  {
>  	int page, status, pages_per_block, ret, chipnr;
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	loff_t len;
>  
>  	pr_debug("%s: start = 0x%012llx, len = %llu\n",
> @@ -3300,7 +3300,7 @@ static void nand_sync(struct mtd_info *mtd)
>   */
>  static int nand_block_isbad(struct mtd_info *mtd, loff_t offs)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	int chipnr = (int)(offs >> chip->chip_shift);
>  	int ret;
>  
> @@ -3344,7 +3344,7 @@ static int nand_block_markbad(struct mtd_info *mtd, loff_t ofs)
>   */
>  static int nand_max_bad_blocks(struct mtd_info *mtd, loff_t ofs, size_t len)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	u32 part_start_block;
>  	u32 part_end_block;
>  	u32 part_start_die;
> @@ -3438,7 +3438,7 @@ static int nand_suspend(struct mtd_info *mtd)
>   */
>  static void nand_resume(struct mtd_info *mtd)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  
>  	if (chip->state == FL_PM_SUSPENDED)
>  		nand_release_device(mtd);
> @@ -3544,7 +3544,7 @@ static u16 onfi_crc16(u16 crc, u8 const *p, size_t len)
>  static int nand_flash_detect_ext_param_page(struct nand_chip *chip,
>  					    struct nand_onfi_params *p)
>  {
> -	struct mtd_info *mtd = nand_to_mtd(chip);
> +	struct mtd_info *mtd = nandchip_to_mtd(chip);
>  	struct onfi_ext_param_page *ep;
>  	struct onfi_ext_section *s;
>  	struct onfi_ext_ecc_info *ecc;
> @@ -3617,7 +3617,7 @@ static int nand_flash_detect_ext_param_page(struct nand_chip *chip,
>   */
>  static int nand_flash_detect_onfi(struct nand_chip *chip)
>  {
> -	struct mtd_info *mtd = nand_to_mtd(chip);
> +	struct mtd_info *mtd = nandchip_to_mtd(chip);
>  	struct nand_onfi_params *p = &chip->onfi_params;
>  	int i, j;
>  	int val;
> @@ -3719,7 +3719,7 @@ static int nand_flash_detect_onfi(struct nand_chip *chip)
>   */
>  static int nand_flash_detect_jedec(struct nand_chip *chip)
>  {
> -	struct mtd_info *mtd = nand_to_mtd(chip);
> +	struct mtd_info *mtd = nandchip_to_mtd(chip);
>  	struct nand_jedec_params *p = &chip->jedec_params;
>  	struct jedec_ecc_info *ecc;
>  	int val;
> @@ -3869,7 +3869,7 @@ static int nand_get_bits_per_cell(u8 cellinfo)
>   */
>  void nand_decode_ext_id(struct nand_chip *chip)
>  {
> -	struct mtd_info *mtd = nand_to_mtd(chip);
> +	struct mtd_info *mtd = nandchip_to_mtd(chip);
>  	int extid;
>  	u8 *id_data = chip->id.data;
>  	/* The 3rd id byte holds MLC / multichip data */
> @@ -3899,7 +3899,7 @@ void nand_decode_ext_id(struct nand_chip *chip)
>   */
>  static void nand_decode_id(struct nand_chip *chip, struct nand_flash_dev *type)
>  {
> -	struct mtd_info *mtd = nand_to_mtd(chip);
> +	struct mtd_info *mtd = nandchip_to_mtd(chip);
>  
>  	mtd->erasesize = type->erasesize;
>  	mtd->writesize = type->pagesize;
> @@ -3916,7 +3916,7 @@ static void nand_decode_id(struct nand_chip *chip, struct nand_flash_dev *type)
>   */
>  static void nand_decode_bbm_options(struct nand_chip *chip)
>  {
> -	struct mtd_info *mtd = nand_to_mtd(chip);
> +	struct mtd_info *mtd = nandchip_to_mtd(chip);
>  
>  	/* Set the bad block position */
>  	if (mtd->writesize > 512 || (chip->options & NAND_BUSWIDTH_16))
> @@ -3933,7 +3933,7 @@ static inline bool is_full_id_nand(struct nand_flash_dev *type)
>  static bool find_full_id_nand(struct nand_chip *chip,
>  			      struct nand_flash_dev *type)
>  {
> -	struct mtd_info *mtd = nand_to_mtd(chip);
> +	struct mtd_info *mtd = nandchip_to_mtd(chip);
>  	u8 *id_data = chip->id.data;
>  
>  	if (!strncmp(type->id, id_data, type->id_len)) {
> @@ -4010,7 +4010,7 @@ static void nand_manufacturer_cleanup(struct nand_chip *chip)
>  static int nand_detect(struct nand_chip *chip, struct nand_flash_dev *type)
>  {
>  	const struct nand_manufacturer *manufacturer;
> -	struct mtd_info *mtd = nand_to_mtd(chip);
> +	struct mtd_info *mtd = nandchip_to_mtd(chip);
>  	int busw;
>  	int i, ret;
>  	u8 *id_data = chip->id.data;
> @@ -4333,7 +4333,7 @@ int nand_scan_ident(struct mtd_info *mtd, int maxchips,
>  		    struct nand_flash_dev *table)
>  {
>  	int i, nand_maf_id, nand_dev_id;
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	int ret;
>  
>  	ret = nand_dt_init(chip);
> @@ -4415,7 +4415,7 @@ int nand_scan_ident(struct mtd_info *mtd, int maxchips,
>  
>  static int nand_set_ecc_soft_ops(struct mtd_info *mtd)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	struct nand_ecc_ctrl *ecc = &chip->ecc;
>  
>  	if (WARN_ON(ecc->mode != NAND_ECC_SOFT))
> @@ -4525,7 +4525,7 @@ static int nand_set_ecc_soft_ops(struct mtd_info *mtd)
>   */
>  static bool nand_ecc_strength_good(struct mtd_info *mtd)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	struct nand_ecc_ctrl *ecc = &chip->ecc;
>  	int corr, ds_corr;
>  
> @@ -4573,7 +4573,7 @@ static bool invalid_ecc_page_accessors(struct nand_chip *chip)
>   */
>  int nand_scan_tail(struct mtd_info *mtd)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	struct nand_ecc_ctrl *ecc = &chip->ecc;
>  	struct nand_buffers *nbuf = NULL;
>  	int ret;
> @@ -4827,11 +4827,11 @@ int nand_scan_tail(struct mtd_info *mtd)
>  	mtd->type = nand_is_slc(chip) ? MTD_NANDFLASH : MTD_MLCNANDFLASH;
>  	mtd->flags = (chip->options & NAND_ROM) ? MTD_CAP_ROM :
>  						MTD_CAP_NANDFLASH;
> -	mtd->_erase = nand_erase;
> +	mtd->_erase = nandc_erase;
>  	mtd->_point = NULL;
>  	mtd->_unpoint = NULL;
> -	mtd->_read = nand_read;
> -	mtd->_write = nand_write;
> +	mtd->_read = nandc_read;
> +	mtd->_write = nandc_write;
>  	mtd->_panic_write = panic_nand_write;
>  	mtd->_read_oob = nand_read_oob;
>  	mtd->_write_oob = nand_write_oob;
> @@ -4943,7 +4943,7 @@ void nand_cleanup(struct nand_chip *chip)
>  void nand_release(struct mtd_info *mtd)
>  {
>  	mtd_device_unregister(mtd);
> -	nand_cleanup(mtd_to_nand(mtd));
> +	nand_cleanup(mtd_to_nandchip(mtd));
>  }
>  EXPORT_SYMBOL_GPL(nand_release);
>  
> diff --git a/drivers/mtd/nand/raw/nand_bbt.c b/drivers/mtd/nand/raw/nand_bbt.c
> index 2915b67..396b248 100644
> --- a/drivers/mtd/nand/raw/nand_bbt.c
> +++ b/drivers/mtd/nand/raw/nand_bbt.c
> @@ -172,7 +172,7 @@ static int read_bbt(struct mtd_info *mtd, uint8_t *buf, int page, int num,
>  		struct nand_bbt_descr *td, int offs)
>  {
>  	int res, ret = 0, i, j, act = 0;
> -	struct nand_chip *this = mtd_to_nand(mtd);
> +	struct nand_chip *this = mtd_to_nandchip(mtd);
>  	size_t retlen, len, totlen;
>  	loff_t from;
>  	int bits = td->options & NAND_BBT_NRBITS_MSK;
> @@ -263,7 +263,7 @@ static int read_bbt(struct mtd_info *mtd, uint8_t *buf, int page, int num,
>   */
>  static int read_abs_bbt(struct mtd_info *mtd, uint8_t *buf, struct nand_bbt_descr *td, int chip)
>  {
> -	struct nand_chip *this = mtd_to_nand(mtd);
> +	struct nand_chip *this = mtd_to_nandchip(mtd);
>  	int res = 0, i;
>  
>  	if (td->options & NAND_BBT_PERCHIP) {
> @@ -388,7 +388,7 @@ static u32 bbt_get_ver_offs(struct mtd_info *mtd, struct nand_bbt_descr *td)
>  static void read_abs_bbts(struct mtd_info *mtd, uint8_t *buf,
>  			  struct nand_bbt_descr *td, struct nand_bbt_descr *md)
>  {
> -	struct nand_chip *this = mtd_to_nand(mtd);
> +	struct nand_chip *this = mtd_to_nandchip(mtd);
>  
>  	/* Read the primary version, if available */
>  	if (td->options & NAND_BBT_VERSION) {
> @@ -454,7 +454,7 @@ static int scan_block_fast(struct mtd_info *mtd, struct nand_bbt_descr *bd,
>  static int create_bbt(struct mtd_info *mtd, uint8_t *buf,
>  	struct nand_bbt_descr *bd, int chip)
>  {
> -	struct nand_chip *this = mtd_to_nand(mtd);
> +	struct nand_chip *this = mtd_to_nandchip(mtd);
>  	int i, numblocks, numpages;
>  	int startblock;
>  	loff_t from;
> @@ -523,7 +523,7 @@ static int create_bbt(struct mtd_info *mtd, uint8_t *buf,
>   */
>  static int search_bbt(struct mtd_info *mtd, uint8_t *buf, struct nand_bbt_descr *td)
>  {
> -	struct nand_chip *this = mtd_to_nand(mtd);
> +	struct nand_chip *this = mtd_to_nandchip(mtd);
>  	int i, chips;
>  	int startblock, block, dir;
>  	int scanlen = mtd->writesize + mtd->oobsize;
> @@ -683,7 +683,7 @@ static void mark_bbt_block_bad(struct nand_chip *this,
>  			       struct nand_bbt_descr *td,
>  			       int chip, int block)
>  {
> -	struct mtd_info *mtd = nand_to_mtd(this);
> +	struct mtd_info *mtd = nandchip_to_mtd(this);
>  	loff_t to;
>  	int res;
>  
> @@ -712,7 +712,7 @@ static int write_bbt(struct mtd_info *mtd, uint8_t *buf,
>  		     struct nand_bbt_descr *td, struct nand_bbt_descr *md,
>  		     int chipsel)
>  {
> -	struct nand_chip *this = mtd_to_nand(mtd);
> +	struct nand_chip *this = mtd_to_nandchip(mtd);
>  	struct erase_info einfo;
>  	int i, res, chip = 0;
>  	int bits, page, offs, numblocks, sft, sftmsk;
> @@ -896,7 +896,7 @@ static int write_bbt(struct mtd_info *mtd, uint8_t *buf,
>   */
>  static inline int nand_memory_bbt(struct mtd_info *mtd, struct nand_bbt_descr *bd)
>  {
> -	struct nand_chip *this = mtd_to_nand(mtd);
> +	struct nand_chip *this = mtd_to_nandchip(mtd);
>  
>  	return create_bbt(mtd, this->buffers->databuf, bd, -1);
>  }
> @@ -915,7 +915,7 @@ static inline int nand_memory_bbt(struct mtd_info *mtd, struct nand_bbt_descr *b
>  static int check_create(struct mtd_info *mtd, uint8_t *buf, struct nand_bbt_descr *bd)
>  {
>  	int i, chips, writeops, create, chipsel, res, res2;
> -	struct nand_chip *this = mtd_to_nand(mtd);
> +	struct nand_chip *this = mtd_to_nandchip(mtd);
>  	struct nand_bbt_descr *td = this->bbt_td;
>  	struct nand_bbt_descr *md = this->bbt_md;
>  	struct nand_bbt_descr *rd, *rd2;
> @@ -1039,7 +1039,7 @@ static int check_create(struct mtd_info *mtd, uint8_t *buf, struct nand_bbt_desc
>   */
>  static void mark_bbt_region(struct mtd_info *mtd, struct nand_bbt_descr *td)
>  {
> -	struct nand_chip *this = mtd_to_nand(mtd);
> +	struct nand_chip *this = mtd_to_nandchip(mtd);
>  	int i, j, chips, block, nrblocks, update;
>  	uint8_t oldval;
>  
> @@ -1099,7 +1099,7 @@ static void mark_bbt_region(struct mtd_info *mtd, struct nand_bbt_descr *td)
>   */
>  static void verify_bbt_descr(struct mtd_info *mtd, struct nand_bbt_descr *bd)
>  {
> -	struct nand_chip *this = mtd_to_nand(mtd);
> +	struct nand_chip *this = mtd_to_nandchip(mtd);
>  	u32 pattern_len;
>  	u32 bits;
>  	u32 table_size;
> @@ -1151,7 +1151,7 @@ static void verify_bbt_descr(struct mtd_info *mtd, struct nand_bbt_descr *bd)
>   */
>  static int nand_scan_bbt(struct mtd_info *mtd, struct nand_bbt_descr *bd)
>  {
> -	struct nand_chip *this = mtd_to_nand(mtd);
> +	struct nand_chip *this = mtd_to_nandchip(mtd);
>  	int len, res;
>  	uint8_t *buf;
>  	struct nand_bbt_descr *td = this->bbt_td;
> @@ -1224,7 +1224,7 @@ static int nand_scan_bbt(struct mtd_info *mtd, struct nand_bbt_descr *bd)
>   */
>  static int nand_update_bbt(struct mtd_info *mtd, loff_t offs)
>  {
> -	struct nand_chip *this = mtd_to_nand(mtd);
> +	struct nand_chip *this = mtd_to_nandchip(mtd);
>  	int len, res = 0;
>  	int chip, chipsel;
>  	uint8_t *buf;
> @@ -1358,7 +1358,7 @@ static int nand_create_badblock_pattern(struct nand_chip *this)
>   */
>  int nand_default_bbt(struct mtd_info *mtd)
>  {
> -	struct nand_chip *this = mtd_to_nand(mtd);
> +	struct nand_chip *this = mtd_to_nandchip(mtd);
>  	int ret;
>  
>  	/* Is a flash based bad block table requested? */
> @@ -1394,7 +1394,7 @@ int nand_default_bbt(struct mtd_info *mtd)
>   */
>  int nand_isreserved_bbt(struct mtd_info *mtd, loff_t offs)
>  {
> -	struct nand_chip *this = mtd_to_nand(mtd);
> +	struct nand_chip *this = mtd_to_nandchip(mtd);
>  	int block;
>  
>  	block = (int)(offs >> this->bbt_erase_shift);
> @@ -1409,7 +1409,7 @@ int nand_isreserved_bbt(struct mtd_info *mtd, loff_t offs)
>   */
>  int nand_isbad_bbt(struct mtd_info *mtd, loff_t offs, int allowbbt)
>  {
> -	struct nand_chip *this = mtd_to_nand(mtd);
> +	struct nand_chip *this = mtd_to_nandchip(mtd);
>  	int block, res;
>  
>  	block = (int)(offs >> this->bbt_erase_shift);
> @@ -1436,7 +1436,7 @@ int nand_isbad_bbt(struct mtd_info *mtd, loff_t offs, int allowbbt)
>   */
>  int nand_markbad_bbt(struct mtd_info *mtd, loff_t offs)
>  {
> -	struct nand_chip *this = mtd_to_nand(mtd);
> +	struct nand_chip *this = mtd_to_nandchip(mtd);
>  	int block, ret = 0;
>  
>  	block = (int)(offs >> this->bbt_erase_shift);
> diff --git a/drivers/mtd/nand/raw/nand_bch.c b/drivers/mtd/nand/raw/nand_bch.c
> index 505441c..b1901d9 100644
> --- a/drivers/mtd/nand/raw/nand_bch.c
> +++ b/drivers/mtd/nand/raw/nand_bch.c
> @@ -50,7 +50,7 @@ struct nand_bch_control {
>  int nand_bch_calculate_ecc(struct mtd_info *mtd, const unsigned char *buf,
>  			   unsigned char *code)
>  {
> -	const struct nand_chip *chip = mtd_to_nand(mtd);
> +	const struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	struct nand_bch_control *nbc = chip->ecc.priv;
>  	unsigned int i;
>  
> @@ -77,7 +77,7 @@ int nand_bch_calculate_ecc(struct mtd_info *mtd, const unsigned char *buf,
>  int nand_bch_correct_data(struct mtd_info *mtd, unsigned char *buf,
>  			  unsigned char *read_ecc, unsigned char *calc_ecc)
>  {
> -	const struct nand_chip *chip = mtd_to_nand(mtd);
> +	const struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	struct nand_bch_control *nbc = chip->ecc.priv;
>  	unsigned int *errloc = nbc->errloc;
>  	int i, count;
> @@ -120,7 +120,7 @@ int nand_bch_correct_data(struct mtd_info *mtd, unsigned char *buf,
>   */
>  struct nand_bch_control *nand_bch_init(struct mtd_info *mtd)
>  {
> -	struct nand_chip *nand = mtd_to_nand(mtd);
> +	struct nand_chip *nand = mtd_to_nandchip(mtd);
>  	unsigned int m, t, eccsteps, i;
>  	struct nand_bch_control *nbc = NULL;
>  	unsigned char *erased_page;
> diff --git a/drivers/mtd/nand/raw/nand_ecc.c b/drivers/mtd/nand/raw/nand_ecc.c
> index 7613a03..741b68a 100644
> --- a/drivers/mtd/nand/raw/nand_ecc.c
> +++ b/drivers/mtd/nand/raw/nand_ecc.c
> @@ -424,7 +424,7 @@ int nand_calculate_ecc(struct mtd_info *mtd, const unsigned char *buf,
>  		       unsigned char *code)
>  {
>  	__nand_calculate_ecc(buf,
> -			mtd_to_nand(mtd)->ecc.size, code);
> +			mtd_to_nandchip(mtd)->ecc.size, code);
>  
>  	return 0;
>  }
> @@ -524,7 +524,7 @@ int nand_correct_data(struct mtd_info *mtd, unsigned char *buf,
>  		      unsigned char *read_ecc, unsigned char *calc_ecc)
>  {
>  	return __nand_correct_data(buf, read_ecc, calc_ecc,
> -				   mtd_to_nand(mtd)->ecc.size);
> +				   mtd_to_nandchip(mtd)->ecc.size);
>  }
>  EXPORT_SYMBOL(nand_correct_data);
>  
> diff --git a/drivers/mtd/nand/raw/nand_hynix.c b/drivers/mtd/nand/raw/nand_hynix.c
> index b735cc8..b35a0a5 100644
> --- a/drivers/mtd/nand/raw/nand_hynix.c
> +++ b/drivers/mtd/nand/raw/nand_hynix.c
> @@ -67,7 +67,7 @@ struct hynix_read_retry_otp {
>  
>  static bool hynix_nand_has_valid_jedecid(struct nand_chip *chip)
>  {
> -	struct mtd_info *mtd = nand_to_mtd(chip);
> +	struct mtd_info *mtd = nandchip_to_mtd(chip);
>  	u8 jedecid[6] = { };
>  	int i = 0;
>  
> @@ -80,7 +80,7 @@ static bool hynix_nand_has_valid_jedecid(struct nand_chip *chip)
>  
>  static int hynix_nand_setup_read_retry(struct mtd_info *mtd, int retry_mode)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	struct hynix_nand *hynix = nand_get_manufacturer_data(chip);
>  	const u8 *values;
>  	int status;
> @@ -172,7 +172,7 @@ static int hynix_read_rr_otp(struct nand_chip *chip,
>  			     const struct hynix_read_retry_otp *info,
>  			     void *buf)
>  {
> -	struct mtd_info *mtd = nand_to_mtd(chip);
> +	struct mtd_info *mtd = nandchip_to_mtd(chip);
>  	int i;
>  
>  	chip->cmdfunc(mtd, NAND_CMD_RESET, -1, -1);
> @@ -365,7 +365,7 @@ static int hynix_nand_rr_init(struct nand_chip *chip)
>  static void hynix_nand_extract_oobsize(struct nand_chip *chip,
>  				       bool valid_jedecid)
>  {
> -	struct mtd_info *mtd = nand_to_mtd(chip);
> +	struct mtd_info *mtd = nandchip_to_mtd(chip);
>  	u8 oobsize;
>  
>  	oobsize = ((chip->id.data[3] >> 2) & 0x3) |
> @@ -543,7 +543,7 @@ static void hynix_nand_extract_scrambling_requirements(struct nand_chip *chip,
>  
>  static void hynix_nand_decode_id(struct nand_chip *chip)
>  {
> -	struct mtd_info *mtd = nand_to_mtd(chip);
> +	struct mtd_info *mtd = nandchip_to_mtd(chip);
>  	bool valid_jedecid;
>  	u8 tmp;
>  
> diff --git a/drivers/mtd/nand/raw/nand_micron.c b/drivers/mtd/nand/raw/nand_micron.c
> index 02c4c1f..6dd0876 100644
> --- a/drivers/mtd/nand/raw/nand_micron.c
> +++ b/drivers/mtd/nand/raw/nand_micron.c
> @@ -45,7 +45,7 @@ struct nand_onfi_vendor_micron {
>  
>  static int micron_nand_setup_read_retry(struct mtd_info *mtd, int retry_mode)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	u8 feature[ONFI_SUBFEATURE_PARAM_LEN] = {retry_mode};
>  
>  	return chip->onfi_set_features(mtd, chip, ONFI_FEATURE_ADDR_READ_RETRY,
> @@ -108,7 +108,7 @@ static int micron_nand_on_die_ecc_setup(struct nand_chip *chip, bool enable)
>  	if (enable)
>  		feature[0] |= ONFI_FEATURE_ON_DIE_ECC_EN;
>  
> -	return chip->onfi_set_features(nand_to_mtd(chip), chip,
> +	return chip->onfi_set_features(nandchip_to_mtd(chip), chip,
>  				       ONFI_FEATURE_ON_DIE_ECC, feature);
>  }
>  
> @@ -229,7 +229,7 @@ static int micron_supports_on_die_ecc(struct nand_chip *chip)
>  	if (ret)
>  		return MICRON_ON_DIE_UNSUPPORTED;
>  
> -	chip->onfi_get_features(nand_to_mtd(chip), chip,
> +	chip->onfi_get_features(nandchip_to_mtd(chip), chip,
>  				ONFI_FEATURE_ON_DIE_ECC, feature);
>  	if ((feature[0] & ONFI_FEATURE_ON_DIE_ECC_EN) == 0)
>  		return MICRON_ON_DIE_UNSUPPORTED;
> @@ -238,7 +238,7 @@ static int micron_supports_on_die_ecc(struct nand_chip *chip)
>  	if (ret)
>  		return MICRON_ON_DIE_UNSUPPORTED;
>  
> -	chip->onfi_get_features(nand_to_mtd(chip), chip,
> +	chip->onfi_get_features(nandchip_to_mtd(chip), chip,
>  				ONFI_FEATURE_ON_DIE_ECC, feature);
>  	if (feature[0] & ONFI_FEATURE_ON_DIE_ECC_EN)
>  		return MICRON_ON_DIE_MANDATORY;
> @@ -255,7 +255,7 @@ static int micron_supports_on_die_ecc(struct nand_chip *chip)
>  
>  static int micron_nand_init(struct nand_chip *chip)
>  {
> -	struct mtd_info *mtd = nand_to_mtd(chip);
> +	struct mtd_info *mtd = nandchip_to_mtd(chip);
>  	int ondie;
>  	int ret;
>  
> diff --git a/drivers/mtd/nand/raw/nand_samsung.c b/drivers/mtd/nand/raw/nand_samsung.c
> index ca17b44..bc54b578 100644
> --- a/drivers/mtd/nand/raw/nand_samsung.c
> +++ b/drivers/mtd/nand/raw/nand_samsung.c
> @@ -19,7 +19,7 @@
>  
>  static void samsung_nand_decode_id(struct nand_chip *chip)
>  {
> -	struct mtd_info *mtd = nand_to_mtd(chip);
> +	struct mtd_info *mtd = nandchip_to_mtd(chip);
>  
>  	/* New Samsung (6 byte ID): Samsung K9GAG08U0F (p.44) */
>  	if (chip->id.len == 6 && !nand_is_slc(chip) &&
> @@ -93,7 +93,7 @@ static void samsung_nand_decode_id(struct nand_chip *chip)
>  
>  static int samsung_nand_init(struct nand_chip *chip)
>  {
> -	struct mtd_info *mtd = nand_to_mtd(chip);
> +	struct mtd_info *mtd = nandchip_to_mtd(chip);
>  
>  	if (mtd->writesize > 512)
>  		chip->options |= NAND_SAMSUNG_LP_OPTIONS;
> diff --git a/drivers/mtd/nand/raw/nand_toshiba.c b/drivers/mtd/nand/raw/nand_toshiba.c
> index 57df857..8a24ccc 100644
> --- a/drivers/mtd/nand/raw/nand_toshiba.c
> +++ b/drivers/mtd/nand/raw/nand_toshiba.c
> @@ -19,7 +19,7 @@
>  
>  static void toshiba_nand_decode_id(struct nand_chip *chip)
>  {
> -	struct mtd_info *mtd = nand_to_mtd(chip);
> +	struct mtd_info *mtd = nandchip_to_mtd(chip);
>  
>  	nand_decode_ext_id(chip);
>  
> diff --git a/drivers/mtd/nand/raw/nandsim.c b/drivers/mtd/nand/raw/nandsim.c
> index 5ba4635..a0246fc 100644
> --- a/drivers/mtd/nand/raw/nandsim.c
> +++ b/drivers/mtd/nand/raw/nandsim.c
> @@ -662,7 +662,7 @@ static char __init *get_partition_name(int i)
>   */
>  static int __init init_nandsim(struct mtd_info *mtd)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	struct nandsim   *ns   = nand_get_controller_data(chip);
>  	int i, ret = 0;
>  	uint64_t remains;
> @@ -1892,7 +1892,7 @@ static void switch_state(struct nandsim *ns)
>  
>  static u_char ns_nand_read_byte(struct mtd_info *mtd)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	struct nandsim *ns = nand_get_controller_data(chip);
>  	u_char outb = 0x00;
>  
> @@ -1954,7 +1954,7 @@ static u_char ns_nand_read_byte(struct mtd_info *mtd)
>  
>  static void ns_nand_write_byte(struct mtd_info *mtd, u_char byte)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	struct nandsim *ns = nand_get_controller_data(chip);
>  
>  	/* Sanity and correctness checks */
> @@ -2109,7 +2109,7 @@ static void ns_nand_write_byte(struct mtd_info *mtd, u_char byte)
>  
>  static void ns_hwcontrol(struct mtd_info *mtd, int cmd, unsigned int bitmask)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	struct nandsim *ns = nand_get_controller_data(chip);
>  
>  	ns->lines.cle = bitmask & NAND_CLE ? 1 : 0;
> @@ -2128,7 +2128,7 @@ static int ns_device_ready(struct mtd_info *mtd)
>  
>  static uint16_t ns_nand_read_word(struct mtd_info *mtd)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  
>  	NS_DBG("read_word\n");
>  
> @@ -2137,7 +2137,7 @@ static uint16_t ns_nand_read_word(struct mtd_info *mtd)
>  
>  static void ns_nand_write_buf(struct mtd_info *mtd, const u_char *buf, int len)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	struct nandsim *ns = nand_get_controller_data(chip);
>  
>  	/* Check that chip is expecting data input */
> @@ -2165,7 +2165,7 @@ static void ns_nand_write_buf(struct mtd_info *mtd, const u_char *buf, int len)
>  
>  static void ns_nand_read_buf(struct mtd_info *mtd, u_char *buf, int len)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	struct nandsim *ns = nand_get_controller_data(chip);
>  
>  	/* Sanity and correctness checks */
> @@ -2187,7 +2187,7 @@ static void ns_nand_read_buf(struct mtd_info *mtd, u_char *buf, int len)
>  		int i;
>  
>  		for (i = 0; i < len; i++)
> -			buf[i] = mtd_to_nand(mtd)->read_byte(mtd);
> +			buf[i] = mtd_to_nandchip(mtd)->read_byte(mtd);
>  
>  		return;
>  	}
> @@ -2231,7 +2231,7 @@ static int __init ns_init_module(void)
>  		NS_ERR("unable to allocate core structures.\n");
>  		return -ENOMEM;
>  	}
> -	nsmtd       = nand_to_mtd(chip);
> +	nsmtd       = nandchip_to_mtd(chip);
>  	nand        = (struct nandsim *)(chip + 1);
>  	nand_set_controller_data(chip, (void *)nand);
>  
> @@ -2391,7 +2391,7 @@ static int __init ns_init_module(void)
>   */
>  static void __exit ns_cleanup_module(void)
>  {
> -	struct nand_chip *chip = mtd_to_nand(nsmtd);
> +	struct nand_chip *chip = mtd_to_nandchip(nsmtd);
>  	struct nandsim *ns = nand_get_controller_data(chip);
>  	int i;
>  
> @@ -2400,7 +2400,7 @@ static void __exit ns_cleanup_module(void)
>  	nand_release(nsmtd); /* Unregister driver */
>  	for (i = 0;i < ARRAY_SIZE(ns->partitions); ++i)
>  		kfree(ns->partitions[i].name);
> -	kfree(mtd_to_nand(nsmtd));        /* Free other structures */
> +	kfree(mtd_to_nandchip(nsmtd));        /* Free other structures */
>  	free_lists();
>  }
>  
> diff --git a/drivers/mtd/nand/raw/ndfc.c b/drivers/mtd/nand/raw/ndfc.c
> index d8a8068..3b9ecbe 100644
> --- a/drivers/mtd/nand/raw/ndfc.c
> +++ b/drivers/mtd/nand/raw/ndfc.c
> @@ -47,7 +47,7 @@ struct ndfc_controller {
>  static void ndfc_select_chip(struct mtd_info *mtd, int chip)
>  {
>  	uint32_t ccr;
> -	struct nand_chip *nchip = mtd_to_nand(mtd);
> +	struct nand_chip *nchip = mtd_to_nandchip(mtd);
>  	struct ndfc_controller *ndfc = nand_get_controller_data(nchip);
>  
>  	ccr = in_be32(ndfc->ndfcbase + NDFC_CCR);
> @@ -61,7 +61,7 @@ static void ndfc_select_chip(struct mtd_info *mtd, int chip)
>  
>  static void ndfc_hwcontrol(struct mtd_info *mtd, int cmd, unsigned int ctrl)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	struct ndfc_controller *ndfc = nand_get_controller_data(chip);
>  
>  	if (cmd == NAND_CMD_NONE)
> @@ -75,7 +75,7 @@ static void ndfc_hwcontrol(struct mtd_info *mtd, int cmd, unsigned int ctrl)
>  
>  static int ndfc_ready(struct mtd_info *mtd)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	struct ndfc_controller *ndfc = nand_get_controller_data(chip);
>  
>  	return in_be32(ndfc->ndfcbase + NDFC_STAT) & NDFC_STAT_IS_READY;
> @@ -84,7 +84,7 @@ static int ndfc_ready(struct mtd_info *mtd)
>  static void ndfc_enable_hwecc(struct mtd_info *mtd, int mode)
>  {
>  	uint32_t ccr;
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	struct ndfc_controller *ndfc = nand_get_controller_data(chip);
>  
>  	ccr = in_be32(ndfc->ndfcbase + NDFC_CCR);
> @@ -96,7 +96,7 @@ static void ndfc_enable_hwecc(struct mtd_info *mtd, int mode)
>  static int ndfc_calculate_ecc(struct mtd_info *mtd,
>  			      const u_char *dat, u_char *ecc_code)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	struct ndfc_controller *ndfc = nand_get_controller_data(chip);
>  	uint32_t ecc;
>  	uint8_t *p = (uint8_t *)&ecc;
> @@ -120,7 +120,7 @@ static int ndfc_calculate_ecc(struct mtd_info *mtd,
>   */
>  static void ndfc_read_buf(struct mtd_info *mtd, uint8_t *buf, int len)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	struct ndfc_controller *ndfc = nand_get_controller_data(chip);
>  	uint32_t *p = (uint32_t *) buf;
>  
> @@ -130,7 +130,7 @@ static void ndfc_read_buf(struct mtd_info *mtd, uint8_t *buf, int len)
>  
>  static void ndfc_write_buf(struct mtd_info *mtd, const uint8_t *buf, int len)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	struct ndfc_controller *ndfc = nand_get_controller_data(chip);
>  	uint32_t *p = (uint32_t *) buf;
>  
> @@ -146,7 +146,7 @@ static int ndfc_chip_init(struct ndfc_controller *ndfc,
>  {
>  	struct device_node *flash_np;
>  	struct nand_chip *chip = &ndfc->chip;
> -	struct mtd_info *mtd = nand_to_mtd(chip);
> +	struct mtd_info *mtd = nandchip_to_mtd(chip);
>  	int ret;
>  
>  	chip->IO_ADDR_R = ndfc->ndfcbase + NDFC_DATA;
> @@ -256,7 +256,7 @@ static int ndfc_probe(struct platform_device *ofdev)
>  static int ndfc_remove(struct platform_device *ofdev)
>  {
>  	struct ndfc_controller *ndfc = dev_get_drvdata(&ofdev->dev);
> -	struct mtd_info *mtd = nand_to_mtd(&ndfc->chip);
> +	struct mtd_info *mtd = nandchip_to_mtd(&ndfc->chip);
>  
>  	nand_release(mtd);
>  	kfree(mtd->name);
> diff --git a/drivers/mtd/nand/raw/nuc900_nand.c b/drivers/mtd/nand/raw/nuc900_nand.c
> index 7bb4d2e..2a2bfce 100644
> --- a/drivers/mtd/nand/raw/nuc900_nand.c
> +++ b/drivers/mtd/nand/raw/nuc900_nand.c
> @@ -63,7 +63,7 @@ struct nuc900_nand {
>  
>  static inline struct nuc900_nand *mtd_to_nuc900(struct mtd_info *mtd)
>  {
> -	return container_of(mtd_to_nand(mtd), struct nuc900_nand, chip);
> +	return container_of(mtd_to_nandchip(mtd), struct nuc900_nand, chip);
>  }
>  
>  static const struct mtd_partition partitions[] = {
> @@ -132,7 +132,7 @@ static int nuc900_nand_devready(struct mtd_info *mtd)
>  static void nuc900_nand_command_lp(struct mtd_info *mtd, unsigned int command,
>  				   int column, int page_addr)
>  {
> -	register struct nand_chip *chip = mtd_to_nand(mtd);
> +	register struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	struct nuc900_nand *nand = mtd_to_nuc900(mtd);
>  
>  	if (command == NAND_CMD_READOOB) {
> @@ -243,7 +243,7 @@ static int nuc900_nand_probe(struct platform_device *pdev)
>  	if (!nuc900_nand)
>  		return -ENOMEM;
>  	chip = &(nuc900_nand->chip);
> -	mtd = nand_to_mtd(chip);
> +	mtd = nandchip_to_mtd(chip);
>  
>  	mtd->dev.parent		= &pdev->dev;
>  	spin_lock_init(&nuc900_nand->lock);
> @@ -284,7 +284,7 @@ static int nuc900_nand_remove(struct platform_device *pdev)
>  {
>  	struct nuc900_nand *nuc900_nand = platform_get_drvdata(pdev);
>  
> -	nand_release(nand_to_mtd(&nuc900_nand->chip));
> +	nand_release(nandchip_to_mtd(&nuc900_nand->chip));
>  	clk_disable(nuc900_nand->clk);
>  
>  	return 0;
> diff --git a/drivers/mtd/nand/raw/omap2.c b/drivers/mtd/nand/raw/omap2.c
> index 54540c8..d8ec8a3 100644
> --- a/drivers/mtd/nand/raw/omap2.c
> +++ b/drivers/mtd/nand/raw/omap2.c
> @@ -184,7 +184,7 @@ struct omap_nand_info {
>  
>  static inline struct omap_nand_info *mtd_to_omap(struct mtd_info *mtd)
>  {
> -	return container_of(mtd_to_nand(mtd), struct omap_nand_info, nand);
> +	return container_of(mtd_to_nandchip(mtd), struct omap_nand_info, nand);
>  }
>  
>  /**
> @@ -279,7 +279,7 @@ static void omap_hwcontrol(struct mtd_info *mtd, int cmd, unsigned int ctrl)
>   */
>  static void omap_read_buf8(struct mtd_info *mtd, u_char *buf, int len)
>  {
> -	struct nand_chip *nand = mtd_to_nand(mtd);
> +	struct nand_chip *nand = mtd_to_nandchip(mtd);
>  
>  	ioread8_rep(nand->IO_ADDR_R, buf, len);
>  }
> @@ -313,7 +313,7 @@ static void omap_write_buf8(struct mtd_info *mtd, const u_char *buf, int len)
>   */
>  static void omap_read_buf16(struct mtd_info *mtd, u_char *buf, int len)
>  {
> -	struct nand_chip *nand = mtd_to_nand(mtd);
> +	struct nand_chip *nand = mtd_to_nandchip(mtd);
>  
>  	ioread16_rep(nand->IO_ADDR_R, buf, len / 2);
>  }
> @@ -944,7 +944,7 @@ static int omap_calculate_ecc(struct mtd_info *mtd, const u_char *dat,
>  static void omap_enable_hwecc(struct mtd_info *mtd, int mode)
>  {
>  	struct omap_nand_info *info = mtd_to_omap(mtd);
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	unsigned int dev_width = (chip->options & NAND_BUSWIDTH_16) ? 1 : 0;
>  	u32 val;
>  
> @@ -990,7 +990,7 @@ static void omap_enable_hwecc(struct mtd_info *mtd, int mode)
>   */
>  static int omap_wait(struct mtd_info *mtd, struct nand_chip *chip)
>  {
> -	struct nand_chip *this = mtd_to_nand(mtd);
> +	struct nand_chip *this = mtd_to_nandchip(mtd);
>  	struct omap_nand_info *info = mtd_to_omap(mtd);
>  	unsigned long timeo = jiffies;
>  	int status, state = this->state;
> @@ -1042,7 +1042,7 @@ static void __maybe_unused omap_enable_hwecc_bch(struct mtd_info *mtd, int mode)
>  	unsigned int dev_width, nsectors;
>  	struct omap_nand_info *info = mtd_to_omap(mtd);
>  	enum omap_ecc ecc_opt = info->ecc_opt;
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	u32 val, wr_mode;
>  	unsigned int ecc_size1, ecc_size0;
>  
> @@ -1757,7 +1757,7 @@ static int omap_ooblayout_free(struct mtd_info *mtd, int section,
>  static int omap_sw_ooblayout_ecc(struct mtd_info *mtd, int section,
>  				 struct mtd_oob_region *oobregion)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	int off = BADBLOCK_MARKER_LENGTH;
>  
>  	if (section >= chip->ecc.steps)
> @@ -1776,7 +1776,7 @@ static int omap_sw_ooblayout_ecc(struct mtd_info *mtd, int section,
>  static int omap_sw_ooblayout_free(struct mtd_info *mtd, int section,
>  				  struct mtd_oob_region *oobregion)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	int off = BADBLOCK_MARKER_LENGTH;
>  
>  	if (section)
> @@ -1851,7 +1851,7 @@ static int omap_nand_probe(struct platform_device *pdev)
>  	}
>  
>  	nand_chip		= &info->nand;
> -	mtd			= nand_to_mtd(nand_chip);
> +	mtd			= nandchip_to_mtd(nand_chip);
>  	mtd->dev.parent		= &pdev->dev;
>  	nand_chip->ecc.priv	= NULL;
>  	nand_set_flash_node(nand_chip, dev->of_node);
> @@ -2189,7 +2189,7 @@ static int omap_nand_probe(struct platform_device *pdev)
>  static int omap_nand_remove(struct platform_device *pdev)
>  {
>  	struct mtd_info *mtd = platform_get_drvdata(pdev);
> -	struct nand_chip *nand_chip = mtd_to_nand(mtd);
> +	struct nand_chip *nand_chip = mtd_to_nandchip(mtd);
>  	struct omap_nand_info *info = mtd_to_omap(mtd);
>  	if (nand_chip->ecc.priv) {
>  		nand_bch_free(nand_chip->ecc.priv);
> diff --git a/drivers/mtd/nand/raw/orion_nand.c b/drivers/mtd/nand/raw/orion_nand.c
> index ae4c0be..24f35fa 100644
> --- a/drivers/mtd/nand/raw/orion_nand.c
> +++ b/drivers/mtd/nand/raw/orion_nand.c
> @@ -30,7 +30,7 @@ struct orion_nand_info {
>  
>  static void orion_nand_cmd_ctrl(struct mtd_info *mtd, int cmd, unsigned int ctrl)
>  {
> -	struct nand_chip *nc = mtd_to_nand(mtd);
> +	struct nand_chip *nc = mtd_to_nandchip(mtd);
>  	struct orion_nand_data *board = nand_get_controller_data(nc);
>  	u32 offs;
>  
> @@ -52,7 +52,7 @@ static void orion_nand_cmd_ctrl(struct mtd_info *mtd, int cmd, unsigned int ctrl
>  
>  static void orion_nand_read_buf(struct mtd_info *mtd, uint8_t *buf, int len)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	void __iomem *io_base = chip->IO_ADDR_R;
>  	uint64_t *buf64;
>  	int i = 0;
> @@ -95,7 +95,7 @@ static int __init orion_nand_probe(struct platform_device *pdev)
>  	if (!info)
>  		return -ENOMEM;
>  	nc = &info->chip;
> -	mtd = nand_to_mtd(nc);
> +	mtd = nandchip_to_mtd(nc);
>  
>  	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
>  	io_base = devm_ioremap_resource(&pdev->dev, res);
> @@ -190,7 +190,7 @@ static int orion_nand_remove(struct platform_device *pdev)
>  {
>  	struct orion_nand_info *info = platform_get_drvdata(pdev);
>  	struct nand_chip *chip = &info->chip;
> -	struct mtd_info *mtd = nand_to_mtd(chip);
> +	struct mtd_info *mtd = nandchip_to_mtd(chip);
>  
>  	nand_release(mtd);
>  
> diff --git a/drivers/mtd/nand/raw/oxnas_nand.c b/drivers/mtd/nand/raw/oxnas_nand.c
> index f14eec3..27eeee3 100644
> --- a/drivers/mtd/nand/raw/oxnas_nand.c
> +++ b/drivers/mtd/nand/raw/oxnas_nand.c
> @@ -40,7 +40,7 @@ struct oxnas_nand_ctrl {
>  
>  static uint8_t oxnas_nand_read_byte(struct mtd_info *mtd)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	struct oxnas_nand_ctrl *oxnas = nand_get_controller_data(chip);
>  
>  	return readb(oxnas->io_base);
> @@ -48,7 +48,7 @@ static uint8_t oxnas_nand_read_byte(struct mtd_info *mtd)
>  
>  static void oxnas_nand_read_buf(struct mtd_info *mtd, u8 *buf, int len)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	struct oxnas_nand_ctrl *oxnas = nand_get_controller_data(chip);
>  
>  	ioread8_rep(oxnas->io_base, buf, len);
> @@ -56,7 +56,7 @@ static void oxnas_nand_read_buf(struct mtd_info *mtd, u8 *buf, int len)
>  
>  static void oxnas_nand_write_buf(struct mtd_info *mtd, const u8 *buf, int len)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	struct oxnas_nand_ctrl *oxnas = nand_get_controller_data(chip);
>  
>  	iowrite8_rep(oxnas->io_base, buf, len);
> @@ -66,7 +66,7 @@ static void oxnas_nand_write_buf(struct mtd_info *mtd, const u8 *buf, int len)
>  static void oxnas_nand_cmd_ctrl(struct mtd_info *mtd, int cmd,
>  				unsigned int ctrl)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	struct oxnas_nand_ctrl *oxnas = nand_get_controller_data(chip);
>  
>  	if (ctrl & NAND_CLE)
> @@ -126,7 +126,7 @@ static int oxnas_nand_probe(struct platform_device *pdev)
>  		nand_set_flash_node(chip, nand_np);
>  		nand_set_controller_data(chip, oxnas);
>  
> -		mtd = nand_to_mtd(chip);
> +		mtd = nandchip_to_mtd(chip);
>  		mtd->dev.parent = &pdev->dev;
>  		mtd->priv = chip;
>  
> @@ -165,7 +165,7 @@ static int oxnas_nand_remove(struct platform_device *pdev)
>  	struct oxnas_nand_ctrl *oxnas = platform_get_drvdata(pdev);
>  
>  	if (oxnas->chips[0])
> -		nand_release(nand_to_mtd(oxnas->chips[0]));
> +		nand_release(nandchip_to_mtd(oxnas->chips[0]));
>  
>  	clk_disable_unprepare(oxnas->clk);
>  
> diff --git a/drivers/mtd/nand/raw/pasemi_nand.c b/drivers/mtd/nand/raw/pasemi_nand.c
> index a47a7e4..7b69e3e 100644
> --- a/drivers/mtd/nand/raw/pasemi_nand.c
> +++ b/drivers/mtd/nand/raw/pasemi_nand.c
> @@ -45,7 +45,7 @@
>  
>  static void pasemi_read_buf(struct mtd_info *mtd, u_char *buf, int len)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  
>  	while (len > 0x800) {
>  		memcpy_fromio(buf, chip->IO_ADDR_R, 0x800);
> @@ -57,7 +57,7 @@ static void pasemi_read_buf(struct mtd_info *mtd, u_char *buf, int len)
>  
>  static void pasemi_write_buf(struct mtd_info *mtd, const u_char *buf, int len)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  
>  	while (len > 0x800) {
>  		memcpy_toio(chip->IO_ADDR_R, buf, 0x800);
> @@ -70,7 +70,7 @@ static void pasemi_write_buf(struct mtd_info *mtd, const u_char *buf, int len)
>  static void pasemi_hwcontrol(struct mtd_info *mtd, int cmd,
>  			     unsigned int ctrl)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  
>  	if (cmd == NAND_CMD_NONE)
>  		return;
> @@ -117,7 +117,7 @@ static int pasemi_nand_probe(struct platform_device *ofdev)
>  		goto out;
>  	}
>  
> -	pasemi_nand_mtd = nand_to_mtd(chip);
> +	pasemi_nand_mtd = nandchip_to_mtd(chip);
>  
>  	/* Link the private data with the MTD structure */
>  	pasemi_nand_mtd->dev.parent = dev;
> @@ -188,7 +188,7 @@ static int pasemi_nand_remove(struct platform_device *ofdev)
>  	if (!pasemi_nand_mtd)
>  		return 0;
>  
> -	chip = mtd_to_nand(pasemi_nand_mtd);
> +	chip = mtd_to_nandchip(pasemi_nand_mtd);
>  
>  	/* Release resources, unregister device */
>  	nand_release(pasemi_nand_mtd);
> diff --git a/drivers/mtd/nand/raw/plat_nand.c b/drivers/mtd/nand/raw/plat_nand.c
> index 925a132..ba10bb1 100644
> --- a/drivers/mtd/nand/raw/plat_nand.c
> +++ b/drivers/mtd/nand/raw/plat_nand.c
> @@ -57,7 +57,7 @@ static int plat_nand_probe(struct platform_device *pdev)
>  		return PTR_ERR(data->io_base);
>  
>  	nand_set_flash_node(&data->chip, pdev->dev.of_node);
> -	mtd = nand_to_mtd(&data->chip);
> +	mtd = nandchip_to_mtd(&data->chip);
>  	mtd->dev.parent = &pdev->dev;
>  
>  	data->chip.IO_ADDR_R = data->io_base;
> @@ -114,7 +114,7 @@ static int plat_nand_remove(struct platform_device *pdev)
>  	struct plat_nand_data *data = platform_get_drvdata(pdev);
>  	struct platform_nand_data *pdata = dev_get_platdata(&pdev->dev);
>  
> -	nand_release(nand_to_mtd(&data->chip));
> +	nand_release(nandchip_to_mtd(&data->chip));
>  	if (pdata->ctrl.remove)
>  		pdata->ctrl.remove(pdev);
>  
> diff --git a/drivers/mtd/nand/raw/pxa3xx_nand.c b/drivers/mtd/nand/raw/pxa3xx_nand.c
> index fc4d35e..94d3976 100644
> --- a/drivers/mtd/nand/raw/pxa3xx_nand.c
> +++ b/drivers/mtd/nand/raw/pxa3xx_nand.c
> @@ -326,7 +326,7 @@ struct pxa3xx_nand_flash {
>  static int pxa3xx_ooblayout_ecc(struct mtd_info *mtd, int section,
>  				struct mtd_oob_region *oobregion)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	struct pxa3xx_nand_host *host = nand_get_controller_data(chip);
>  	struct pxa3xx_nand_info *info = host->info_data;
>  	int nchunks = mtd->writesize / info->chunk_size;
> @@ -344,7 +344,7 @@ static int pxa3xx_ooblayout_ecc(struct mtd_info *mtd, int section,
>  static int pxa3xx_ooblayout_free(struct mtd_info *mtd, int section,
>  				 struct mtd_oob_region *oobregion)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	struct pxa3xx_nand_host *host = nand_get_controller_data(chip);
>  	struct pxa3xx_nand_info *info = host->info_data;
>  	int nchunks = mtd->writesize / info->chunk_size;
> @@ -509,7 +509,7 @@ static int pxa3xx_nand_init_timings_compat(struct pxa3xx_nand_host *host,
>  	struct nand_chip *chip = &host->chip;
>  	struct pxa3xx_nand_info *info = host->info_data;
>  	const struct pxa3xx_nand_flash *f = NULL;
> -	struct mtd_info *mtd = nand_to_mtd(&host->chip);
> +	struct mtd_info *mtd = nandchip_to_mtd(&host->chip);
>  	int i, id, ntypes;
>  
>  	ntypes = ARRAY_SIZE(builtin_flash_types);
> @@ -931,7 +931,7 @@ static void set_command_address(struct pxa3xx_nand_info *info,
>  static void prepare_start_command(struct pxa3xx_nand_info *info, int command)
>  {
>  	struct pxa3xx_nand_host *host = info->host[info->cs];
> -	struct mtd_info *mtd = nand_to_mtd(&host->chip);
> +	struct mtd_info *mtd = nandchip_to_mtd(&host->chip);
>  
>  	/* reset data and oob column point to handle data */
>  	info->buf_start		= 0;
> @@ -984,7 +984,7 @@ static int prepare_set_command(struct pxa3xx_nand_info *info, int command,
>  	struct mtd_info *mtd;
>  
>  	host = info->host[info->cs];
> -	mtd = nand_to_mtd(&host->chip);
> +	mtd = nandchip_to_mtd(&host->chip);
>  	addr_cycle = 0;
>  	exec_cmd = 1;
>  
> @@ -1168,7 +1168,7 @@ static int prepare_set_command(struct pxa3xx_nand_info *info, int command,
>  static void nand_cmdfunc(struct mtd_info *mtd, unsigned command,
>  			 int column, int page_addr)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	struct pxa3xx_nand_host *host = nand_get_controller_data(chip);
>  	struct pxa3xx_nand_info *info = host->info_data;
>  	int exec_cmd;
> @@ -1217,7 +1217,7 @@ static void nand_cmdfunc_extended(struct mtd_info *mtd,
>  				  const unsigned command,
>  				  int column, int page_addr)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	struct pxa3xx_nand_host *host = nand_get_controller_data(chip);
>  	struct pxa3xx_nand_info *info = host->info_data;
>  	int exec_cmd, ext_cmd_type;
> @@ -1373,7 +1373,7 @@ static int pxa3xx_nand_read_page_hwecc(struct mtd_info *mtd,
>  
>  static uint8_t pxa3xx_nand_read_byte(struct mtd_info *mtd)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	struct pxa3xx_nand_host *host = nand_get_controller_data(chip);
>  	struct pxa3xx_nand_info *info = host->info_data;
>  	char retval = 0xFF;
> @@ -1387,7 +1387,7 @@ static uint8_t pxa3xx_nand_read_byte(struct mtd_info *mtd)
>  
>  static u16 pxa3xx_nand_read_word(struct mtd_info *mtd)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	struct pxa3xx_nand_host *host = nand_get_controller_data(chip);
>  	struct pxa3xx_nand_info *info = host->info_data;
>  	u16 retval = 0xFFFF;
> @@ -1401,7 +1401,7 @@ static u16 pxa3xx_nand_read_word(struct mtd_info *mtd)
>  
>  static void pxa3xx_nand_read_buf(struct mtd_info *mtd, uint8_t *buf, int len)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	struct pxa3xx_nand_host *host = nand_get_controller_data(chip);
>  	struct pxa3xx_nand_info *info = host->info_data;
>  	int real_len = min_t(size_t, len, info->buf_count - info->buf_start);
> @@ -1413,7 +1413,7 @@ static void pxa3xx_nand_read_buf(struct mtd_info *mtd, uint8_t *buf, int len)
>  static void pxa3xx_nand_write_buf(struct mtd_info *mtd,
>  		const uint8_t *buf, int len)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	struct pxa3xx_nand_host *host = nand_get_controller_data(chip);
>  	struct pxa3xx_nand_info *info = host->info_data;
>  	int real_len = min_t(size_t, len, info->buf_count - info->buf_start);
> @@ -1429,7 +1429,7 @@ static void pxa3xx_nand_select_chip(struct mtd_info *mtd, int chip)
>  
>  static int pxa3xx_nand_waitfunc(struct mtd_info *mtd, struct nand_chip *this)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	struct pxa3xx_nand_host *host = nand_get_controller_data(chip);
>  	struct pxa3xx_nand_info *info = host->info_data;
>  
> @@ -1480,7 +1480,7 @@ static void pxa3xx_nand_config_tail(struct pxa3xx_nand_info *info)
>  {
>  	struct pxa3xx_nand_host *host = info->host[info->cs];
>  	struct nand_chip *chip = &host->chip;
> -	struct mtd_info *mtd = nand_to_mtd(chip);
> +	struct mtd_info *mtd = nandchip_to_mtd(chip);
>  
>  	info->reg_ndcr |= (host->col_addr_cycles == 2) ? NDCR_RA_START : 0;
>  	info->reg_ndcr |= (chip->page_shift == 6) ? NDCR_PG_PER_BLK : 0;
> @@ -1569,7 +1569,7 @@ static int pxa_ecc_init(struct pxa3xx_nand_info *info,
>  			struct mtd_info *mtd,
>  			int strength, int ecc_stepsize, int page_size)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	struct nand_ecc_ctrl *ecc = &chip->ecc;
>  
>  	if (strength == 1 && ecc_stepsize == 512 && page_size == 2048) {
> @@ -1651,7 +1651,7 @@ static int pxa_ecc_init(struct pxa3xx_nand_info *info,
>  
>  static int pxa3xx_nand_scan(struct mtd_info *mtd)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	struct pxa3xx_nand_host *host = nand_get_controller_data(chip);
>  	struct pxa3xx_nand_info *info = host->info_data;
>  	struct platform_device *pdev = info->pdev;
> @@ -1792,7 +1792,7 @@ static int alloc_nand_resource(struct platform_device *pdev)
>  		host = (void *)&info[1] + sizeof(*host) * cs;
>  		chip = &host->chip;
>  		nand_set_controller_data(chip, host);
> -		mtd = nand_to_mtd(chip);
> +		mtd = nandchip_to_mtd(chip);
>  		info->host[cs] = host;
>  		host->cs = cs;
>  		host->info_data = info;
> @@ -1912,7 +1912,7 @@ static int pxa3xx_nand_remove(struct platform_device *pdev)
>  	clk_disable_unprepare(info->clk);
>  
>  	for (cs = 0; cs < pdata->num_cs; cs++)
> -		nand_release(nand_to_mtd(&info->host[cs]->chip));
> +		nand_release(nandchip_to_mtd(&info->host[cs]->chip));
>  	return 0;
>  }
>  
> @@ -1972,7 +1972,7 @@ static int pxa3xx_nand_probe(struct platform_device *pdev)
>  	info = platform_get_drvdata(pdev);
>  	probe_success = 0;
>  	for (cs = 0; cs < pdata->num_cs; cs++) {
> -		struct mtd_info *mtd = nand_to_mtd(&info->host[cs]->chip);
> +		struct mtd_info *mtd = nandchip_to_mtd(&info->host[cs]->chip);
>  
>  		/*
>  		 * The mtd name matches the one used in 'mtdparts' kernel
> diff --git a/drivers/mtd/nand/raw/qcom_nandc.c b/drivers/mtd/nand/raw/qcom_nandc.c
> index a77c66f..3b2d16b 100644
> --- a/drivers/mtd/nand/raw/qcom_nandc.c
> +++ b/drivers/mtd/nand/raw/qcom_nandc.c
> @@ -873,7 +873,7 @@ static void post_command(struct qcom_nand_host *host, int command)
>  static void qcom_nandc_command(struct mtd_info *mtd, unsigned int command,
>  			       int column, int page_addr)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	struct qcom_nand_host *host = to_qcom_nand_host(chip);
>  	struct nand_ecc_ctrl *ecc = &chip->ecc;
>  	struct qcom_nand_controller *nandc = get_qcom_nand_controller(chip);
> @@ -1008,7 +1008,7 @@ static int parse_read_errors(struct qcom_nand_host *host, u8 *data_buf,
>  {
>  	struct nand_chip *chip = &host->chip;
>  	struct qcom_nand_controller *nandc = get_qcom_nand_controller(chip);
> -	struct mtd_info *mtd = nand_to_mtd(chip);
> +	struct mtd_info *mtd = nandchip_to_mtd(chip);
>  	struct nand_ecc_ctrl *ecc = &chip->ecc;
>  	unsigned int max_bitflips = 0;
>  	struct read_stats *buf;
> @@ -1481,7 +1481,7 @@ static int qcom_nandc_write_oob(struct mtd_info *mtd, struct nand_chip *chip,
>  
>  static int qcom_nandc_block_bad(struct mtd_info *mtd, loff_t ofs)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	struct qcom_nand_host *host = to_qcom_nand_host(chip);
>  	struct qcom_nand_controller *nandc = get_qcom_nand_controller(chip);
>  	struct nand_ecc_ctrl *ecc = &chip->ecc;
> @@ -1521,7 +1521,7 @@ static int qcom_nandc_block_bad(struct mtd_info *mtd, loff_t ofs)
>  
>  static int qcom_nandc_block_markbad(struct mtd_info *mtd, loff_t ofs)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	struct qcom_nand_host *host = to_qcom_nand_host(chip);
>  	struct qcom_nand_controller *nandc = get_qcom_nand_controller(chip);
>  	struct nand_ecc_ctrl *ecc = &chip->ecc;
> @@ -1571,7 +1571,7 @@ static int qcom_nandc_block_markbad(struct mtd_info *mtd, loff_t ofs)
>   */
>  static uint8_t qcom_nandc_read_byte(struct mtd_info *mtd)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	struct qcom_nand_host *host = to_qcom_nand_host(chip);
>  	struct qcom_nand_controller *nandc = get_qcom_nand_controller(chip);
>  	u8 *buf = nandc->data_buffer;
> @@ -1593,7 +1593,7 @@ static uint8_t qcom_nandc_read_byte(struct mtd_info *mtd)
>  
>  static void qcom_nandc_read_buf(struct mtd_info *mtd, uint8_t *buf, int len)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	struct qcom_nand_controller *nandc = get_qcom_nand_controller(chip);
>  	int real_len = min_t(size_t, len, nandc->buf_count - nandc->buf_start);
>  
> @@ -1604,7 +1604,7 @@ static void qcom_nandc_read_buf(struct mtd_info *mtd, uint8_t *buf, int len)
>  static void qcom_nandc_write_buf(struct mtd_info *mtd, const uint8_t *buf,
>  				 int len)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	struct qcom_nand_controller *nandc = get_qcom_nand_controller(chip);
>  	int real_len = min_t(size_t, len, nandc->buf_count - nandc->buf_start);
>  
> @@ -1616,7 +1616,7 @@ static void qcom_nandc_write_buf(struct mtd_info *mtd, const uint8_t *buf,
>  /* we support only one external chip for now */
>  static void qcom_nandc_select_chip(struct mtd_info *mtd, int chipnr)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	struct qcom_nand_controller *nandc = get_qcom_nand_controller(chip);
>  
>  	if (chipnr <= 0)
> @@ -1713,7 +1713,7 @@ static void qcom_nandc_select_chip(struct mtd_info *mtd, int chipnr)
>  static int qcom_nand_ooblayout_ecc(struct mtd_info *mtd, int section,
>  				   struct mtd_oob_region *oobregion)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	struct qcom_nand_host *host = to_qcom_nand_host(chip);
>  	struct nand_ecc_ctrl *ecc = &chip->ecc;
>  
> @@ -1735,7 +1735,7 @@ static int qcom_nand_ooblayout_ecc(struct mtd_info *mtd, int section,
>  static int qcom_nand_ooblayout_free(struct mtd_info *mtd, int section,
>  				     struct mtd_oob_region *oobregion)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	struct qcom_nand_host *host = to_qcom_nand_host(chip);
>  	struct nand_ecc_ctrl *ecc = &chip->ecc;
>  
> @@ -1756,7 +1756,7 @@ static int qcom_nand_ooblayout_free(struct mtd_info *mtd, int section,
>  static int qcom_nand_host_setup(struct qcom_nand_host *host)
>  {
>  	struct nand_chip *chip = &host->chip;
> -	struct mtd_info *mtd = nand_to_mtd(chip);
> +	struct mtd_info *mtd = nandchip_to_mtd(chip);
>  	struct nand_ecc_ctrl *ecc = &chip->ecc;
>  	struct qcom_nand_controller *nandc = get_qcom_nand_controller(chip);
>  	int cwperpage, bad_block_byte;
> @@ -1988,7 +1988,7 @@ static int qcom_nand_host_init(struct qcom_nand_controller *nandc,
>  			       struct device_node *dn)
>  {
>  	struct nand_chip *chip = &host->chip;
> -	struct mtd_info *mtd = nand_to_mtd(chip);
> +	struct mtd_info *mtd = nandchip_to_mtd(chip);
>  	struct device *dev = nandc->dev;
>  	int ret;
>  
> @@ -2152,7 +2152,7 @@ static int qcom_nandc_probe(struct platform_device *pdev)
>  
>  err_cs_init:
>  	list_for_each_entry(host, &nandc->host_list, node)
> -		nand_release(nand_to_mtd(&host->chip));
> +		nand_release(nandchip_to_mtd(&host->chip));
>  err_setup:
>  	clk_disable_unprepare(nandc->aon_clk);
>  err_aon_clk:
> @@ -2169,7 +2169,7 @@ static int qcom_nandc_remove(struct platform_device *pdev)
>  	struct qcom_nand_host *host;
>  
>  	list_for_each_entry(host, &nandc->host_list, node)
> -		nand_release(nand_to_mtd(&host->chip));
> +		nand_release(nandchip_to_mtd(&host->chip));
>  
>  	qcom_nandc_unalloc(nandc);
>  
> diff --git a/drivers/mtd/nand/raw/r852.c b/drivers/mtd/nand/raw/r852.c
> index fc9287a..6ac7b95 100644
> --- a/drivers/mtd/nand/raw/r852.c
> +++ b/drivers/mtd/nand/raw/r852.c
> @@ -64,7 +64,7 @@ static inline void r852_write_reg_dword(struct r852_device *dev,
>  /* returns pointer to our private structure */
>  static inline struct r852_device *r852_get_dev(struct mtd_info *mtd)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	return nand_get_controller_data(chip);
>  }
>  
> @@ -634,7 +634,7 @@ static void r852_update_media_status(struct r852_device *dev)
>   */
>  static int r852_register_nand_device(struct r852_device *dev)
>  {
> -	struct mtd_info *mtd = nand_to_mtd(dev->chip);
> +	struct mtd_info *mtd = nandchip_to_mtd(dev->chip);
>  
>  	WARN_ON(dev->card_registred);
>  
> @@ -669,7 +669,7 @@ static int r852_register_nand_device(struct r852_device *dev)
>  
>  static void r852_unregister_nand_device(struct r852_device *dev)
>  {
> -	struct mtd_info *mtd = nand_to_mtd(dev->chip);
> +	struct mtd_info *mtd = nandchip_to_mtd(dev->chip);
>  
>  	if (!dev->card_registred)
>  		return;
> @@ -1025,7 +1025,7 @@ static int r852_suspend(struct device *device)
>  static int r852_resume(struct device *device)
>  {
>  	struct r852_device *dev = pci_get_drvdata(to_pci_dev(device));
> -	struct mtd_info *mtd = nand_to_mtd(dev->chip);
> +	struct mtd_info *mtd = nandchip_to_mtd(dev->chip);
>  
>  	r852_disable_irqs(dev);
>  	r852_card_update_present(dev);
> diff --git a/drivers/mtd/nand/raw/s3c2410.c b/drivers/mtd/nand/raw/s3c2410.c
> index 0b2314b..d6918b0 100644
> --- a/drivers/mtd/nand/raw/s3c2410.c
> +++ b/drivers/mtd/nand/raw/s3c2410.c
> @@ -207,7 +207,7 @@ struct s3c24XX_nand_devtype_data {
>  
>  static struct s3c2410_nand_mtd *s3c2410_nand_mtd_toours(struct mtd_info *mtd)
>  {
> -	return container_of(mtd_to_nand(mtd), struct s3c2410_nand_mtd,
> +	return container_of(mtd_to_nandchip(mtd), struct s3c2410_nand_mtd,
>  			    chip);
>  }
>  
> @@ -422,7 +422,7 @@ static void s3c2410_nand_select_chip(struct mtd_info *mtd, int chip)
>  {
>  	struct s3c2410_nand_info *info;
>  	struct s3c2410_nand_mtd *nmtd;
> -	struct nand_chip *this = mtd_to_nand(mtd);
> +	struct nand_chip *this = mtd_to_nandchip(mtd);
>  	unsigned long cur;
>  
>  	nmtd = nand_get_controller_data(this);
> @@ -673,7 +673,7 @@ static int s3c2440_nand_calculate_ecc(struct mtd_info *mtd, const u_char *dat,
>  
>  static void s3c2410_nand_read_buf(struct mtd_info *mtd, u_char *buf, int len)
>  {
> -	struct nand_chip *this = mtd_to_nand(mtd);
> +	struct nand_chip *this = mtd_to_nandchip(mtd);
>  	readsb(this->IO_ADDR_R, buf, len);
>  }
>  
> @@ -695,7 +695,7 @@ static void s3c2440_nand_read_buf(struct mtd_info *mtd, u_char *buf, int len)
>  static void s3c2410_nand_write_buf(struct mtd_info *mtd, const u_char *buf,
>  				   int len)
>  {
> -	struct nand_chip *this = mtd_to_nand(mtd);
> +	struct nand_chip *this = mtd_to_nandchip(mtd);
>  	writesb(this->IO_ADDR_W, buf, len);
>  }
>  
> @@ -784,7 +784,7 @@ static int s3c24xx_nand_remove(struct platform_device *pdev)
>  
>  		for (mtdno = 0; mtdno < info->mtd_count; mtdno++, ptr++) {
>  			pr_debug("releasing mtd %d (%p)\n", mtdno, ptr);
> -			nand_release(nand_to_mtd(&ptr->chip));
> +			nand_release(nandchip_to_mtd(&ptr->chip));
>  		}
>  	}
>  
> @@ -801,7 +801,7 @@ static int s3c2410_nand_add_partition(struct s3c2410_nand_info *info,
>  				      struct s3c2410_nand_set *set)
>  {
>  	if (set) {
> -		struct mtd_info *mtdinfo = nand_to_mtd(&mtd->chip);
> +		struct mtd_info *mtdinfo = nandchip_to_mtd(&mtd->chip);
>  
>  		mtdinfo->name = set->name;
>  
> @@ -984,7 +984,7 @@ static int s3c2410_nand_update_chip(struct s3c2410_nand_info *info,
>  		} else {
>  			chip->ecc.size	    = 512;
>  			chip->ecc.bytes	    = 3;
> -			mtd_set_ooblayout(nand_to_mtd(chip),
> +			mtd_set_ooblayout(nandchip_to_mtd(chip),
>  					  &s3c2410_ooblayout_ops);
>  		}
>  
> @@ -1157,7 +1157,7 @@ static int s3c24xx_nand_probe(struct platform_device *pdev)
>  	nmtd = info->mtds;
>  
>  	for (setno = 0; setno < nr_sets; setno++, nmtd++) {
> -		struct mtd_info *mtd = nand_to_mtd(&nmtd->chip);
> +		struct mtd_info *mtd = nandchip_to_mtd(&nmtd->chip);
>  
>  		pr_debug("initialising set %d (%p, info %p)\n",
>  			 setno, nmtd, info);
> diff --git a/drivers/mtd/nand/raw/sh_flctl.c b/drivers/mtd/nand/raw/sh_flctl.c
> index 492705f..1525f15 100644
> --- a/drivers/mtd/nand/raw/sh_flctl.c
> +++ b/drivers/mtd/nand/raw/sh_flctl.c
> @@ -45,7 +45,7 @@
>  static int flctl_4secc_ooblayout_sp_ecc(struct mtd_info *mtd, int section,
>  					struct mtd_oob_region *oobregion)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  
>  	if (section)
>  		return -ERANGE;
> @@ -76,7 +76,7 @@ static int flctl_4secc_ooblayout_sp_free(struct mtd_info *mtd, int section,
>  static int flctl_4secc_ooblayout_lp_ecc(struct mtd_info *mtd, int section,
>  					struct mtd_oob_region *oobregion)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  
>  	if (section >= chip->ecc.steps)
>  		return -ERANGE;
> @@ -90,7 +90,7 @@ static int flctl_4secc_ooblayout_lp_ecc(struct mtd_info *mtd, int section,
>  static int flctl_4secc_ooblayout_lp_free(struct mtd_info *mtd, int section,
>  					 struct mtd_oob_region *oobregion)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  
>  	if (section >= chip->ecc.steps)
>  		return -ERANGE;
> @@ -1164,7 +1164,7 @@ static int flctl_probe(struct platform_device *pdev)
>  
>  	platform_set_drvdata(pdev, flctl);
>  	nand = &flctl->chip;
> -	flctl_mtd = nand_to_mtd(nand);
> +	flctl_mtd = nandchip_to_mtd(nand);
>  	nand_set_flash_node(nand, pdev->dev.of_node);
>  	flctl_mtd->dev.parent = &pdev->dev;
>  	flctl->pdev = pdev;
> @@ -1229,7 +1229,7 @@ static int flctl_remove(struct platform_device *pdev)
>  	struct sh_flctl *flctl = platform_get_drvdata(pdev);
>  
>  	flctl_release_dma(flctl);
> -	nand_release(nand_to_mtd(&flctl->chip));
> +	nand_release(nandchip_to_mtd(&flctl->chip));
>  	pm_runtime_disable(&pdev->dev);
>  
>  	return 0;
> diff --git a/drivers/mtd/nand/raw/sharpsl.c b/drivers/mtd/nand/raw/sharpsl.c
> index 737efe8..38c7fb3 100644
> --- a/drivers/mtd/nand/raw/sharpsl.c
> +++ b/drivers/mtd/nand/raw/sharpsl.c
> @@ -36,7 +36,7 @@ struct sharpsl_nand {
>  
>  static inline struct sharpsl_nand *mtd_to_sharpsl(struct mtd_info *mtd)
>  {
> -	return container_of(mtd_to_nand(mtd), struct sharpsl_nand, chip);
> +	return container_of(mtd_to_nandchip(mtd), struct sharpsl_nand, chip);
>  }
>  
>  /* register offset */
> @@ -68,7 +68,7 @@ static void sharpsl_nand_hwcontrol(struct mtd_info *mtd, int cmd,
>  				   unsigned int ctrl)
>  {
>  	struct sharpsl_nand *sharpsl = mtd_to_sharpsl(mtd);
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  
>  	if (ctrl & NAND_CTRL_CHANGE) {
>  		unsigned char bits = ctrl & 0x07;
> @@ -146,7 +146,7 @@ static int sharpsl_nand_probe(struct platform_device *pdev)
>  	this = (struct nand_chip *)(&sharpsl->chip);
>  
>  	/* Link the private data with the MTD structure */
> -	mtd = nand_to_mtd(this);
> +	mtd = nandchip_to_mtd(this);
>  	mtd->dev.parent = &pdev->dev;
>  	mtd_set_ooblayout(mtd, data->ecc_layout);
>  
> @@ -210,7 +210,7 @@ static int sharpsl_nand_remove(struct platform_device *pdev)
>  	struct sharpsl_nand *sharpsl = platform_get_drvdata(pdev);
>  
>  	/* Release resources, unregister device */
> -	nand_release(nand_to_mtd(&sharpsl->chip));
> +	nand_release(nandchip_to_mtd(&sharpsl->chip));
>  
>  	iounmap(sharpsl->io);
>  
> diff --git a/drivers/mtd/nand/raw/sm_common.c b/drivers/mtd/nand/raw/sm_common.c
> index c378705..0e7e367 100644
> --- a/drivers/mtd/nand/raw/sm_common.c
> +++ b/drivers/mtd/nand/raw/sm_common.c
> @@ -163,7 +163,7 @@ static int sm_block_markbad(struct mtd_info *mtd, loff_t ofs)
>  
>  int sm_register_device(struct mtd_info *mtd, int smartmedia)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	int ret;
>  
>  	chip->options |= NAND_SKIP_BBTSCAN;
> diff --git a/drivers/mtd/nand/raw/socrates_nand.c b/drivers/mtd/nand/raw/socrates_nand.c
> index 575997d..c17a5f3 100644
> --- a/drivers/mtd/nand/raw/socrates_nand.c
> +++ b/drivers/mtd/nand/raw/socrates_nand.c
> @@ -44,7 +44,7 @@ static void socrates_nand_write_buf(struct mtd_info *mtd,
>  		const uint8_t *buf, int len)
>  {
>  	int i;
> -	struct nand_chip *this = mtd_to_nand(mtd);
> +	struct nand_chip *this = mtd_to_nandchip(mtd);
>  	struct socrates_nand_host *host = nand_get_controller_data(this);
>  
>  	for (i = 0; i < len; i++) {
> @@ -63,7 +63,7 @@ static void socrates_nand_write_buf(struct mtd_info *mtd,
>  static void socrates_nand_read_buf(struct mtd_info *mtd, uint8_t *buf, int len)
>  {
>  	int i;
> -	struct nand_chip *this = mtd_to_nand(mtd);
> +	struct nand_chip *this = mtd_to_nandchip(mtd);
>  	struct socrates_nand_host *host = nand_get_controller_data(this);
>  	uint32_t val;
>  
> @@ -104,7 +104,7 @@ static uint16_t socrates_nand_read_word(struct mtd_info *mtd)
>  static void socrates_nand_cmd_ctrl(struct mtd_info *mtd, int cmd,
>  		unsigned int ctrl)
>  {
> -	struct nand_chip *nand_chip = mtd_to_nand(mtd);
> +	struct nand_chip *nand_chip = mtd_to_nandchip(mtd);
>  	struct socrates_nand_host *host = nand_get_controller_data(nand_chip);
>  	uint32_t val;
>  
> @@ -129,7 +129,7 @@ static void socrates_nand_cmd_ctrl(struct mtd_info *mtd, int cmd,
>   */
>  static int socrates_nand_device_ready(struct mtd_info *mtd)
>  {
> -	struct nand_chip *nand_chip = mtd_to_nand(mtd);
> +	struct nand_chip *nand_chip = mtd_to_nandchip(mtd);
>  	struct socrates_nand_host *host = nand_get_controller_data(nand_chip);
>  
>  	if (in_be32(host->io_base) & FPGA_NAND_BUSY)
> @@ -159,7 +159,7 @@ static int socrates_nand_probe(struct platform_device *ofdev)
>  	}
>  
>  	nand_chip = &host->nand_chip;
> -	mtd = nand_to_mtd(nand_chip);
> +	mtd = nandchip_to_mtd(nand_chip);
>  	host->dev = &ofdev->dev;
>  
>  	/* link the private data structures */
> @@ -208,7 +208,7 @@ static int socrates_nand_probe(struct platform_device *ofdev)
>  static int socrates_nand_remove(struct platform_device *ofdev)
>  {
>  	struct socrates_nand_host *host = dev_get_drvdata(&ofdev->dev);
> -	struct mtd_info *mtd = nand_to_mtd(&host->nand_chip);
> +	struct mtd_info *mtd = nandchip_to_mtd(&host->nand_chip);
>  
>  	nand_release(mtd);
>  
> diff --git a/drivers/mtd/nand/raw/sunxi_nand.c b/drivers/mtd/nand/raw/sunxi_nand.c
> index 214a9c7..971978e 100644
> --- a/drivers/mtd/nand/raw/sunxi_nand.c
> +++ b/drivers/mtd/nand/raw/sunxi_nand.c
> @@ -379,7 +379,7 @@ static int sunxi_nfc_dma_op_prepare(struct mtd_info *mtd, const void *buf,
>  				    enum dma_data_direction ddir,
>  				    struct scatterlist *sg)
>  {
> -	struct nand_chip *nand = mtd_to_nand(mtd);
> +	struct nand_chip *nand = mtd_to_nandchip(mtd);
>  	struct sunxi_nfc *nfc = to_sunxi_nfc(nand->controller);
>  	struct dma_async_tx_descriptor *dmad;
>  	enum dma_transfer_direction tdir;
> @@ -427,7 +427,7 @@ static void sunxi_nfc_dma_op_cleanup(struct mtd_info *mtd,
>  				     enum dma_data_direction ddir,
>  				     struct scatterlist *sg)
>  {
> -	struct nand_chip *nand = mtd_to_nand(mtd);
> +	struct nand_chip *nand = mtd_to_nandchip(mtd);
>  	struct sunxi_nfc *nfc = to_sunxi_nfc(nand->controller);
>  
>  	dma_unmap_sg(nfc->dev, sg, 1, ddir);
> @@ -437,7 +437,7 @@ static void sunxi_nfc_dma_op_cleanup(struct mtd_info *mtd,
>  
>  static int sunxi_nfc_dev_ready(struct mtd_info *mtd)
>  {
> -	struct nand_chip *nand = mtd_to_nand(mtd);
> +	struct nand_chip *nand = mtd_to_nandchip(mtd);
>  	struct sunxi_nand_chip *sunxi_nand = to_sunxi_nand(nand);
>  	struct sunxi_nfc *nfc = to_sunxi_nfc(sunxi_nand->nand.controller);
>  	struct sunxi_nand_rb *rb;
> @@ -468,7 +468,7 @@ static int sunxi_nfc_dev_ready(struct mtd_info *mtd)
>  
>  static void sunxi_nfc_select_chip(struct mtd_info *mtd, int chip)
>  {
> -	struct nand_chip *nand = mtd_to_nand(mtd);
> +	struct nand_chip *nand = mtd_to_nandchip(mtd);
>  	struct sunxi_nand_chip *sunxi_nand = to_sunxi_nand(nand);
>  	struct sunxi_nfc *nfc = to_sunxi_nfc(sunxi_nand->nand.controller);
>  	struct sunxi_nand_chip_sel *sel;
> @@ -513,7 +513,7 @@ static void sunxi_nfc_select_chip(struct mtd_info *mtd, int chip)
>  
>  static void sunxi_nfc_read_buf(struct mtd_info *mtd, uint8_t *buf, int len)
>  {
> -	struct nand_chip *nand = mtd_to_nand(mtd);
> +	struct nand_chip *nand = mtd_to_nandchip(mtd);
>  	struct sunxi_nand_chip *sunxi_nand = to_sunxi_nand(nand);
>  	struct sunxi_nfc *nfc = to_sunxi_nfc(sunxi_nand->nand.controller);
>  	int ret;
> @@ -552,7 +552,7 @@ static void sunxi_nfc_read_buf(struct mtd_info *mtd, uint8_t *buf, int len)
>  static void sunxi_nfc_write_buf(struct mtd_info *mtd, const uint8_t *buf,
>  				int len)
>  {
> -	struct nand_chip *nand = mtd_to_nand(mtd);
> +	struct nand_chip *nand = mtd_to_nandchip(mtd);
>  	struct sunxi_nand_chip *sunxi_nand = to_sunxi_nand(nand);
>  	struct sunxi_nfc *nfc = to_sunxi_nfc(sunxi_nand->nand.controller);
>  	int ret;
> @@ -599,7 +599,7 @@ static uint8_t sunxi_nfc_read_byte(struct mtd_info *mtd)
>  static void sunxi_nfc_cmd_ctrl(struct mtd_info *mtd, int dat,
>  			       unsigned int ctrl)
>  {
> -	struct nand_chip *nand = mtd_to_nand(mtd);
> +	struct nand_chip *nand = mtd_to_nandchip(mtd);
>  	struct sunxi_nand_chip *sunxi_nand = to_sunxi_nand(nand);
>  	struct sunxi_nfc *nfc = to_sunxi_nfc(sunxi_nand->nand.controller);
>  	int ret;
> @@ -756,7 +756,7 @@ static u16 sunxi_nfc_randomizer_state(struct mtd_info *mtd, int page, bool ecc)
>  static void sunxi_nfc_randomizer_config(struct mtd_info *mtd,
>  					int page, bool ecc)
>  {
> -	struct nand_chip *nand = mtd_to_nand(mtd);
> +	struct nand_chip *nand = mtd_to_nandchip(mtd);
>  	struct sunxi_nfc *nfc = to_sunxi_nfc(nand->controller);
>  	u32 ecc_ctl = readl(nfc->regs + NFC_REG_ECC_CTL);
>  	u16 state;
> @@ -772,7 +772,7 @@ static void sunxi_nfc_randomizer_config(struct mtd_info *mtd,
>  
>  static void sunxi_nfc_randomizer_enable(struct mtd_info *mtd)
>  {
> -	struct nand_chip *nand = mtd_to_nand(mtd);
> +	struct nand_chip *nand = mtd_to_nandchip(mtd);
>  	struct sunxi_nfc *nfc = to_sunxi_nfc(nand->controller);
>  
>  	if (!(nand->options & NAND_NEED_SCRAMBLING))
> @@ -784,7 +784,7 @@ static void sunxi_nfc_randomizer_enable(struct mtd_info *mtd)
>  
>  static void sunxi_nfc_randomizer_disable(struct mtd_info *mtd)
>  {
> -	struct nand_chip *nand = mtd_to_nand(mtd);
> +	struct nand_chip *nand = mtd_to_nandchip(mtd);
>  	struct sunxi_nfc *nfc = to_sunxi_nfc(nand->controller);
>  
>  	if (!(nand->options & NAND_NEED_SCRAMBLING))
> @@ -823,7 +823,7 @@ static void sunxi_nfc_randomizer_read_buf(struct mtd_info *mtd, uint8_t *buf,
>  
>  static void sunxi_nfc_hw_ecc_enable(struct mtd_info *mtd)
>  {
> -	struct nand_chip *nand = mtd_to_nand(mtd);
> +	struct nand_chip *nand = mtd_to_nandchip(mtd);
>  	struct sunxi_nfc *nfc = to_sunxi_nfc(nand->controller);
>  	struct sunxi_nand_hw_ecc *data = nand->ecc.priv;
>  	u32 ecc_ctl;
> @@ -842,7 +842,7 @@ static void sunxi_nfc_hw_ecc_enable(struct mtd_info *mtd)
>  
>  static void sunxi_nfc_hw_ecc_disable(struct mtd_info *mtd)
>  {
> -	struct nand_chip *nand = mtd_to_nand(mtd);
> +	struct nand_chip *nand = mtd_to_nandchip(mtd);
>  	struct sunxi_nfc *nfc = to_sunxi_nfc(nand->controller);
>  
>  	writel(readl(nfc->regs + NFC_REG_ECC_CTL) & ~NFC_ECC_EN,
> @@ -865,7 +865,7 @@ static inline u32 sunxi_nfc_buf_to_user_data(const u8 *buf)
>  static void sunxi_nfc_hw_ecc_get_prot_oob_bytes(struct mtd_info *mtd, u8 *oob,
>  						int step, bool bbm, int page)
>  {
> -	struct nand_chip *nand = mtd_to_nand(mtd);
> +	struct nand_chip *nand = mtd_to_nandchip(mtd);
>  	struct sunxi_nfc *nfc = to_sunxi_nfc(nand->controller);
>  
>  	sunxi_nfc_user_data_to_buf(readl(nfc->regs + NFC_REG_USER_DATA(step)),
> @@ -880,7 +880,7 @@ static void sunxi_nfc_hw_ecc_set_prot_oob_bytes(struct mtd_info *mtd,
>  						const u8 *oob, int step,
>  						bool bbm, int page)
>  {
> -	struct nand_chip *nand = mtd_to_nand(mtd);
> +	struct nand_chip *nand = mtd_to_nandchip(mtd);
>  	struct sunxi_nfc *nfc = to_sunxi_nfc(nand->controller);
>  	u8 user_data[4];
>  
> @@ -909,7 +909,7 @@ static void sunxi_nfc_hw_ecc_update_stats(struct mtd_info *mtd,
>  static int sunxi_nfc_hw_ecc_correct(struct mtd_info *mtd, u8 *data, u8 *oob,
>  				    int step, u32 status, bool *erased)
>  {
> -	struct nand_chip *nand = mtd_to_nand(mtd);
> +	struct nand_chip *nand = mtd_to_nandchip(mtd);
>  	struct sunxi_nfc *nfc = to_sunxi_nfc(nand->controller);
>  	struct nand_ecc_ctrl *ecc = &nand->ecc;
>  	u32 tmp;
> @@ -950,7 +950,7 @@ static int sunxi_nfc_hw_ecc_read_chunk(struct mtd_info *mtd,
>  				       unsigned int *max_bitflips,
>  				       bool bbm, bool oob_required, int page)
>  {
> -	struct nand_chip *nand = mtd_to_nand(mtd);
> +	struct nand_chip *nand = mtd_to_nandchip(mtd);
>  	struct sunxi_nfc *nfc = to_sunxi_nfc(nand->controller);
>  	struct nand_ecc_ctrl *ecc = &nand->ecc;
>  	int raw_mode = 0;
> @@ -1029,7 +1029,7 @@ static void sunxi_nfc_hw_ecc_read_extra_oob(struct mtd_info *mtd,
>  					    u8 *oob, int *cur_off,
>  					    bool randomize, int page)
>  {
> -	struct nand_chip *nand = mtd_to_nand(mtd);
> +	struct nand_chip *nand = mtd_to_nandchip(mtd);
>  	struct nand_ecc_ctrl *ecc = &nand->ecc;
>  	int offset = ((ecc->bytes + 4) * ecc->steps);
>  	int len = mtd->oobsize - offset;
> @@ -1055,7 +1055,7 @@ static int sunxi_nfc_hw_ecc_read_chunks_dma(struct mtd_info *mtd, uint8_t *buf,
>  					    int oob_required, int page,
>  					    int nchunks)
>  {
> -	struct nand_chip *nand = mtd_to_nand(mtd);
> +	struct nand_chip *nand = mtd_to_nandchip(mtd);
>  	bool randomized = nand->options & NAND_NEED_SCRAMBLING;
>  	struct sunxi_nfc *nfc = to_sunxi_nfc(nand->controller);
>  	struct nand_ecc_ctrl *ecc = &nand->ecc;
> @@ -1181,7 +1181,7 @@ static int sunxi_nfc_hw_ecc_write_chunk(struct mtd_info *mtd,
>  					int *cur_off, bool bbm,
>  					int page)
>  {
> -	struct nand_chip *nand = mtd_to_nand(mtd);
> +	struct nand_chip *nand = mtd_to_nandchip(mtd);
>  	struct sunxi_nfc *nfc = to_sunxi_nfc(nand->controller);
>  	struct nand_ecc_ctrl *ecc = &nand->ecc;
>  	int ret;
> @@ -1219,7 +1219,7 @@ static void sunxi_nfc_hw_ecc_write_extra_oob(struct mtd_info *mtd,
>  					     u8 *oob, int *cur_off,
>  					     int page)
>  {
> -	struct nand_chip *nand = mtd_to_nand(mtd);
> +	struct nand_chip *nand = mtd_to_nandchip(mtd);
>  	struct nand_ecc_ctrl *ecc = &nand->ecc;
>  	int offset = ((ecc->bytes + 4) * ecc->steps);
>  	int len = mtd->oobsize - offset;
> @@ -1410,7 +1410,7 @@ static int sunxi_nfc_hw_ecc_write_page_dma(struct mtd_info *mtd,
>  					   int oob_required,
>  					   int page)
>  {
> -	struct nand_chip *nand = mtd_to_nand(mtd);
> +	struct nand_chip *nand = mtd_to_nandchip(mtd);
>  	struct sunxi_nfc *nfc = to_sunxi_nfc(nand->controller);
>  	struct nand_ecc_ctrl *ecc = &nand->ecc;
>  	struct scatterlist sg;
> @@ -1596,7 +1596,7 @@ static int sunxi_nfc_setup_data_interface(struct mtd_info *mtd,
>  					const struct nand_data_interface *conf,
>  					bool check_only)
>  {
> -	struct nand_chip *nand = mtd_to_nand(mtd);
> +	struct nand_chip *nand = mtd_to_nandchip(mtd);
>  	struct sunxi_nand_chip *chip = to_sunxi_nand(nand);
>  	struct sunxi_nfc *nfc = to_sunxi_nfc(chip->nand.controller);
>  	const struct nand_sdr_timings *timings;
> @@ -1746,7 +1746,7 @@ static int sunxi_nfc_setup_data_interface(struct mtd_info *mtd,
>  static int sunxi_nand_ooblayout_ecc(struct mtd_info *mtd, int section,
>  				    struct mtd_oob_region *oobregion)
>  {
> -	struct nand_chip *nand = mtd_to_nand(mtd);
> +	struct nand_chip *nand = mtd_to_nandchip(mtd);
>  	struct nand_ecc_ctrl *ecc = &nand->ecc;
>  
>  	if (section >= ecc->steps)
> @@ -1761,7 +1761,7 @@ static int sunxi_nand_ooblayout_ecc(struct mtd_info *mtd, int section,
>  static int sunxi_nand_ooblayout_free(struct mtd_info *mtd, int section,
>  				     struct mtd_oob_region *oobregion)
>  {
> -	struct nand_chip *nand = mtd_to_nand(mtd);
> +	struct nand_chip *nand = mtd_to_nandchip(mtd);
>  	struct nand_ecc_ctrl *ecc = &nand->ecc;
>  
>  	if (section > ecc->steps)
> @@ -1799,7 +1799,7 @@ static int sunxi_nand_hw_common_ecc_ctrl_init(struct mtd_info *mtd,
>  					      struct device_node *np)
>  {
>  	static const u8 strengths[] = { 16, 24, 28, 32, 40, 48, 56, 60, 64 };
> -	struct nand_chip *nand = mtd_to_nand(mtd);
> +	struct nand_chip *nand = mtd_to_nandchip(mtd);
>  	struct sunxi_nand_chip *sunxi_nand = to_sunxi_nand(nand);
>  	struct sunxi_nfc *nfc = to_sunxi_nfc(sunxi_nand->nand.controller);
>  	struct sunxi_nand_hw_ecc *data;
> @@ -1898,7 +1898,7 @@ static int sunxi_nand_hw_ecc_ctrl_init(struct mtd_info *mtd,
>  				       struct nand_ecc_ctrl *ecc,
>  				       struct device_node *np)
>  {
> -	struct nand_chip *nand = mtd_to_nand(mtd);
> +	struct nand_chip *nand = mtd_to_nandchip(mtd);
>  	struct sunxi_nand_chip *sunxi_nand = to_sunxi_nand(nand);
>  	struct sunxi_nfc *nfc = to_sunxi_nfc(sunxi_nand->nand.controller);
>  	int ret;
> @@ -1962,7 +1962,7 @@ static void sunxi_nand_ecc_cleanup(struct nand_ecc_ctrl *ecc)
>  static int sunxi_nand_ecc_init(struct mtd_info *mtd, struct nand_ecc_ctrl *ecc,
>  			       struct device_node *np)
>  {
> -	struct nand_chip *nand = mtd_to_nand(mtd);
> +	struct nand_chip *nand = mtd_to_nandchip(mtd);
>  	int ret;
>  
>  	if (!ecc->size) {
> @@ -2088,7 +2088,7 @@ static int sunxi_nand_chip_init(struct device *dev, struct sunxi_nfc *nfc,
>  	nand->read_byte = sunxi_nfc_read_byte;
>  	nand->setup_data_interface = sunxi_nfc_setup_data_interface;
>  
> -	mtd = nand_to_mtd(nand);
> +	mtd = nandchip_to_mtd(nand);
>  	mtd->dev.parent = dev;
>  
>  	ret = nand_scan_ident(mtd, nsels, NULL);
> @@ -2157,7 +2157,7 @@ static void sunxi_nand_chips_cleanup(struct sunxi_nfc *nfc)
>  	while (!list_empty(&nfc->chips)) {
>  		chip = list_first_entry(&nfc->chips, struct sunxi_nand_chip,
>  					node);
> -		nand_release(nand_to_mtd(&chip->nand));
> +		nand_release(nandchip_to_mtd(&chip->nand));
>  		sunxi_nand_ecc_cleanup(&chip->nand.ecc);
>  		list_del(&chip->node);
>  	}
> diff --git a/drivers/mtd/nand/raw/tango_nand.c b/drivers/mtd/nand/raw/tango_nand.c
> index 906fe0f..8097e88 100644
> --- a/drivers/mtd/nand/raw/tango_nand.c
> +++ b/drivers/mtd/nand/raw/tango_nand.c
> @@ -118,7 +118,7 @@ struct tango_chip {
>  
>  static void tango_cmd_ctrl(struct mtd_info *mtd, int dat, unsigned int ctrl)
>  {
> -	struct tango_chip *tchip = to_tango_chip(mtd_to_nand(mtd));
> +	struct tango_chip *tchip = to_tango_chip(mtd_to_nandchip(mtd));
>  
>  	if (ctrl & NAND_CLE)
>  		writeb_relaxed(dat, tchip->base + PBUS_CMD);
> @@ -129,7 +129,7 @@ static void tango_cmd_ctrl(struct mtd_info *mtd, int dat, unsigned int ctrl)
>  
>  static int tango_dev_ready(struct mtd_info *mtd)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	struct tango_nfc *nfc = to_tango_nfc(chip->controller);
>  
>  	return readl_relaxed(nfc->pbus_base + PBUS_CS_CTRL) & PBUS_IORDY;
> @@ -137,28 +137,28 @@ static int tango_dev_ready(struct mtd_info *mtd)
>  
>  static u8 tango_read_byte(struct mtd_info *mtd)
>  {
> -	struct tango_chip *tchip = to_tango_chip(mtd_to_nand(mtd));
> +	struct tango_chip *tchip = to_tango_chip(mtd_to_nandchip(mtd));
>  
>  	return readb_relaxed(tchip->base + PBUS_DATA);
>  }
>  
>  static void tango_read_buf(struct mtd_info *mtd, u8 *buf, int len)
>  {
> -	struct tango_chip *tchip = to_tango_chip(mtd_to_nand(mtd));
> +	struct tango_chip *tchip = to_tango_chip(mtd_to_nandchip(mtd));
>  
>  	ioread8_rep(tchip->base + PBUS_DATA, buf, len);
>  }
>  
>  static void tango_write_buf(struct mtd_info *mtd, const u8 *buf, int len)
>  {
> -	struct tango_chip *tchip = to_tango_chip(mtd_to_nand(mtd));
> +	struct tango_chip *tchip = to_tango_chip(mtd_to_nandchip(mtd));
>  
>  	iowrite8_rep(tchip->base + PBUS_DATA, buf, len);
>  }
>  
>  static void tango_select_chip(struct mtd_info *mtd, int idx)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	struct tango_nfc *nfc = to_tango_nfc(chip->controller);
>  	struct tango_chip *tchip = to_tango_chip(chip);
>  
> @@ -179,7 +179,7 @@ static void tango_select_chip(struct mtd_info *mtd, int idx)
>   */
>  static int check_erased_page(struct nand_chip *chip, u8 *buf)
>  {
> -	struct mtd_info *mtd = nand_to_mtd(chip);
> +	struct mtd_info *mtd = nandchip_to_mtd(chip);
>  	u8 *meta = chip->oob_poi + BBM_SIZE;
>  	u8 *ecc = chip->oob_poi + BBM_SIZE + METADATA_SIZE;
>  	const int ecc_size = chip->ecc.bytes;
> @@ -311,7 +311,7 @@ static int tango_write_page(struct mtd_info *mtd, struct nand_chip *chip,
>  
>  static void aux_read(struct nand_chip *chip, u8 **buf, int len, int *pos)
>  {
> -	struct mtd_info *mtd = nand_to_mtd(chip);
> +	struct mtd_info *mtd = nandchip_to_mtd(chip);
>  
>  	*pos += len;
>  
> @@ -326,7 +326,7 @@ static void aux_read(struct nand_chip *chip, u8 **buf, int len, int *pos)
>  
>  static void aux_write(struct nand_chip *chip, const u8 **buf, int len, int *pos)
>  {
> -	struct mtd_info *mtd = nand_to_mtd(chip);
> +	struct mtd_info *mtd = nandchip_to_mtd(chip);
>  
>  	*pos += len;
>  
> @@ -360,7 +360,7 @@ static void aux_write(struct nand_chip *chip, const u8 **buf, int len, int *pos)
>   */
>  static void raw_read(struct nand_chip *chip, u8 *buf, u8 *oob)
>  {
> -	struct mtd_info *mtd = nand_to_mtd(chip);
> +	struct mtd_info *mtd = nandchip_to_mtd(chip);
>  	u8 *oob_orig = oob;
>  	const int page_size = mtd->writesize;
>  	const int ecc_size = chip->ecc.bytes;
> @@ -387,7 +387,7 @@ static void raw_read(struct nand_chip *chip, u8 *buf, u8 *oob)
>  
>  static void raw_write(struct nand_chip *chip, const u8 *buf, const u8 *oob)
>  {
> -	struct mtd_info *mtd = nand_to_mtd(chip);
> +	struct mtd_info *mtd = nandchip_to_mtd(chip);
>  	const u8 *oob_orig = oob;
>  	const int page_size = mtd->writesize;
>  	const int ecc_size = chip->ecc.bytes;
> @@ -449,7 +449,7 @@ static int tango_write_oob(struct mtd_info *mtd, struct nand_chip *chip,
>  
>  static int oob_ecc(struct mtd_info *mtd, int idx, struct mtd_oob_region *res)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	struct nand_ecc_ctrl *ecc = &chip->ecc;
>  
>  	if (idx >= ecc->steps)
> @@ -481,7 +481,7 @@ static int tango_set_timings(struct mtd_info *mtd,
>  			     bool check_only)
>  {
>  	const struct nand_sdr_timings *sdr = nand_get_sdr_timings(conf);
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	struct tango_nfc *nfc = to_tango_nfc(chip->controller);
>  	struct tango_chip *tchip = to_tango_chip(chip);
>  	u32 Trdy, Textw, Twc, Twpw, Tacc, Thold, Trpw, Textr;
> @@ -539,7 +539,7 @@ static int chip_init(struct device *dev, struct device_node *np)
>  
>  	chip = &tchip->nand_chip;
>  	ecc = &chip->ecc;
> -	mtd = nand_to_mtd(chip);
> +	mtd = nandchip_to_mtd(chip);
>  
>  	chip->read_byte = tango_read_byte;
>  	chip->write_buf = tango_write_buf;
> @@ -601,7 +601,7 @@ static int tango_nand_remove(struct platform_device *pdev)
>  
>  	for (cs = 0; cs < MAX_CS; ++cs) {
>  		if (nfc->chips[cs])
> -			nand_release(nand_to_mtd(&nfc->chips[cs]->nand_chip));
> +			nand_release(nandchip_to_mtd(&nfc->chips[cs]->nand_chip));
>  	}
>  
>  	return 0;
> diff --git a/drivers/mtd/nand/raw/tmio_nand.c b/drivers/mtd/nand/raw/tmio_nand.c
> index c9dd682..5b1bb65 100644
> --- a/drivers/mtd/nand/raw/tmio_nand.c
> +++ b/drivers/mtd/nand/raw/tmio_nand.c
> @@ -120,7 +120,7 @@ struct tmio_nand {
>  
>  static inline struct tmio_nand *mtd_to_tmio(struct mtd_info *mtd)
>  {
> -	return container_of(mtd_to_nand(mtd), struct tmio_nand, chip);
> +	return container_of(mtd_to_nandchip(mtd), struct tmio_nand, chip);
>  }
>  
>  
> @@ -130,7 +130,7 @@ static void tmio_nand_hwcontrol(struct mtd_info *mtd, int cmd,
>  				   unsigned int ctrl)
>  {
>  	struct tmio_nand *tmio = mtd_to_tmio(mtd);
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  
>  	if (ctrl & NAND_CTRL_CHANGE) {
>  		u8 mode;
> @@ -381,7 +381,7 @@ static int tmio_probe(struct platform_device *dev)
>  
>  	platform_set_drvdata(dev, tmio);
>  	nand_chip = &tmio->chip;
> -	mtd = nand_to_mtd(nand_chip);
> +	mtd = nandchip_to_mtd(nand_chip);
>  	mtd->name = "tmio-nand";
>  	mtd->dev.parent = &dev->dev;
>  
> @@ -457,7 +457,7 @@ static int tmio_remove(struct platform_device *dev)
>  {
>  	struct tmio_nand *tmio = platform_get_drvdata(dev);
>  
> -	nand_release(nand_to_mtd(&tmio->chip));
> +	nand_release(nandchip_to_mtd(&tmio->chip));
>  	tmio_hw_stop(dev, tmio);
>  	return 0;
>  }
> diff --git a/drivers/mtd/nand/raw/txx9ndfmc.c b/drivers/mtd/nand/raw/txx9ndfmc.c
> index b567d21..edb7cd0 100644
> --- a/drivers/mtd/nand/raw/txx9ndfmc.c
> +++ b/drivers/mtd/nand/raw/txx9ndfmc.c
> @@ -78,7 +78,7 @@ struct txx9ndfmc_drvdata {
>  
>  static struct platform_device *mtd_to_platdev(struct mtd_info *mtd)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	struct txx9ndfmc_priv *txx9_priv = nand_get_controller_data(chip);
>  	return txx9_priv->dev;
>  }
> @@ -134,7 +134,7 @@ static void txx9ndfmc_read_buf(struct mtd_info *mtd, uint8_t *buf, int len)
>  static void txx9ndfmc_cmd_ctrl(struct mtd_info *mtd, int cmd,
>  			       unsigned int ctrl)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	struct txx9ndfmc_priv *txx9_priv = nand_get_controller_data(chip);
>  	struct platform_device *dev = txx9_priv->dev;
>  	struct txx9ndfmc_platform_data *plat = dev_get_platdata(&dev->dev);
> @@ -174,7 +174,7 @@ static int txx9ndfmc_calculate_ecc(struct mtd_info *mtd, const uint8_t *dat,
>  				   uint8_t *ecc_code)
>  {
>  	struct platform_device *dev = mtd_to_platdev(mtd);
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	int eccbytes;
>  	u32 mcr = txx9ndfmc_read(dev, TXX9_NDFMCR);
>  
> @@ -194,7 +194,7 @@ static int txx9ndfmc_calculate_ecc(struct mtd_info *mtd, const uint8_t *dat,
>  static int txx9ndfmc_correct_data(struct mtd_info *mtd, unsigned char *buf,
>  		unsigned char *read_ecc, unsigned char *calc_ecc)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	int eccsize;
>  	int corrected = 0;
>  	int stat;
> @@ -256,7 +256,7 @@ static void txx9ndfmc_initialize(struct platform_device *dev)
>  
>  static int txx9ndfmc_nand_scan(struct mtd_info *mtd)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	int ret;
>  
>  	ret = nand_scan_ident(mtd, 1, NULL);
> @@ -320,7 +320,7 @@ static int __init txx9ndfmc_probe(struct platform_device *dev)
>  		if (!txx9_priv)
>  			continue;
>  		chip = &txx9_priv->chip;
> -		mtd = nand_to_mtd(chip);
> +		mtd = nandchip_to_mtd(chip);
>  		mtd->dev.parent = &dev->dev;
>  
>  		chip->read_byte = txx9ndfmc_read_byte;
> @@ -387,7 +387,7 @@ static int __exit txx9ndfmc_remove(struct platform_device *dev)
>  
>  		if (!mtd)
>  			continue;
> -		chip = mtd_to_nand(mtd);
> +		chip = mtd_to_nandchip(mtd);
>  		txx9_priv = nand_get_controller_data(chip);
>  
>  		nand_release(mtd);
> diff --git a/drivers/mtd/nand/raw/vf610_nfc.c b/drivers/mtd/nand/raw/vf610_nfc.c
> index 1bc4b08..0baf986 100644
> --- a/drivers/mtd/nand/raw/vf610_nfc.c
> +++ b/drivers/mtd/nand/raw/vf610_nfc.c
> @@ -171,7 +171,7 @@ struct vf610_nfc {
>  
>  static inline struct vf610_nfc *mtd_to_nfc(struct mtd_info *mtd)
>  {
> -	return container_of(mtd_to_nand(mtd), struct vf610_nfc, chip);
> +	return container_of(mtd_to_nandchip(mtd), struct vf610_nfc, chip);
>  }
>  
>  static inline u32 vf610_nfc_read(struct vf610_nfc *nfc, uint reg)
> @@ -648,7 +648,7 @@ static int vf610_nfc_probe(struct platform_device *pdev)
>  
>  	nfc->dev = &pdev->dev;
>  	chip = &nfc->chip;
> -	mtd = nand_to_mtd(chip);
> +	mtd = nandchip_to_mtd(chip);
>  
>  	mtd->owner = THIS_MODULE;
>  	mtd->dev.parent = nfc->dev;
> diff --git a/drivers/mtd/nand/raw/xway_nand.c b/drivers/mtd/nand/raw/xway_nand.c
> index 9926b4e..c3d4b0f 100644
> --- a/drivers/mtd/nand/raw/xway_nand.c
> +++ b/drivers/mtd/nand/raw/xway_nand.c
> @@ -71,7 +71,7 @@ struct xway_nand_data {
>  
>  static u8 xway_readb(struct mtd_info *mtd, int op)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	struct xway_nand_data *data = nand_get_controller_data(chip);
>  
>  	return readb(data->nandaddr + op);
> @@ -79,7 +79,7 @@ static u8 xway_readb(struct mtd_info *mtd, int op)
>  
>  static void xway_writeb(struct mtd_info *mtd, int op, u8 value)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	struct xway_nand_data *data = nand_get_controller_data(chip);
>  
>  	writeb(value, data->nandaddr + op);
> @@ -87,7 +87,7 @@ static void xway_writeb(struct mtd_info *mtd, int op, u8 value)
>  
>  static void xway_select_chip(struct mtd_info *mtd, int select)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	struct xway_nand_data *data = nand_get_controller_data(chip);
>  
>  	switch (select) {
> @@ -170,7 +170,7 @@ static int xway_nand_probe(struct platform_device *pdev)
>  		return PTR_ERR(data->nandaddr);
>  
>  	nand_set_flash_node(&data->chip, pdev->dev.of_node);
> -	mtd = nand_to_mtd(&data->chip);
> +	mtd = nandchip_to_mtd(&data->chip);
>  	mtd->dev.parent = &pdev->dev;
>  
>  	data->chip.cmd_ctrl = xway_cmd_ctrl;
> @@ -223,7 +223,7 @@ static int xway_nand_remove(struct platform_device *pdev)
>  {
>  	struct xway_nand_data *data = platform_get_drvdata(pdev);
>  
> -	nand_release(nand_to_mtd(&data->chip));
> +	nand_release(nandchip_to_mtd(&data->chip));
>  
>  	return 0;
>  }
> diff --git a/drivers/staging/mt29f_spinand/mt29f_spinand.c b/drivers/staging/mt29f_spinand/mt29f_spinand.c
> index f7f6edf..df5671a 100644
> --- a/drivers/staging/mt29f_spinand/mt29f_spinand.c
> +++ b/drivers/staging/mt29f_spinand/mt29f_spinand.c
> @@ -31,7 +31,7 @@
>  
>  static inline struct spinand_state *mtd_to_state(struct mtd_info *mtd)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	struct spinand_info *info = nand_get_controller_data(chip);
>  	struct spinand_state *state = info->priv;
>  
> @@ -756,7 +756,7 @@ static void spinand_reset(struct spi_device *spi_nand)
>  static void spinand_cmdfunc(struct mtd_info *mtd, unsigned int command,
>  			    int column, int page)
>  {
> -	struct nand_chip *chip = mtd_to_nand(mtd);
> +	struct nand_chip *chip = mtd_to_nandchip(mtd);
>  	struct spinand_info *info = nand_get_controller_data(chip);
>  	struct spinand_state *state = info->priv;
>  
> @@ -916,7 +916,7 @@ static int spinand_probe(struct spi_device *spi_nand)
>  	chip->options	|= NAND_CACHEPRG;
>  	chip->select_chip = spinand_select_chip;
>  
> -	mtd = nand_to_mtd(chip);
> +	mtd = nandchip_to_mtd(chip);
>  
>  	dev_set_drvdata(&spi_nand->dev, mtd);
>  
> diff --git a/include/linux/mtd/rawnand.h b/include/linux/mtd/rawnand.h
> index fc6ed95..aa43ec4 100644
> --- a/include/linux/mtd/rawnand.h
> +++ b/include/linux/mtd/rawnand.h
> @@ -938,12 +938,12 @@ static inline struct device_node *nand_get_flash_node(struct nand_chip *chip)
>  	return mtd_get_of_node(&chip->mtd);
>  }
>  
> -static inline struct nand_chip *mtd_to_nand(struct mtd_info *mtd)
> +static inline struct nand_chip *mtd_to_nandchip(struct mtd_info *mtd)
>  {
>  	return container_of(mtd, struct nand_chip, mtd);
>  }
>  
> -static inline struct mtd_info *nand_to_mtd(struct nand_chip *chip)
> +static inline struct mtd_info *nandchip_to_mtd(struct nand_chip *chip)
>  {
>  	return &chip->mtd;
>  }
> diff --git a/include/linux/mtd/sh_flctl.h b/include/linux/mtd/sh_flctl.h
> index c759d40..0c1a4a9 100644
> --- a/include/linux/mtd/sh_flctl.h
> +++ b/include/linux/mtd/sh_flctl.h
> @@ -186,7 +186,7 @@ struct sh_flctl_platform_data {
>  
>  static inline struct sh_flctl *mtd_to_flctl(struct mtd_info *mtdinfo)
>  {
> -	return container_of(mtd_to_nand(mtdinfo), struct sh_flctl, chip);
> +	return container_of(mtd_to_nandchip(mtdinfo), struct sh_flctl, chip);
>  }
>  
>  #endif	/* __SH_FLCTL_H__ */

Patch

diff --git a/Documentation/DocBook/mtdnand.tmpl b/Documentation/DocBook/mtdnand.tmpl
index 35ec715..5a3342c 100644
--- a/Documentation/DocBook/mtdnand.tmpl
+++ b/Documentation/DocBook/mtdnand.tmpl
@@ -169,7 +169,7 @@ 
 			The NAND chip structure embeds an mtd structure
 			which will be registered to the MTD subsystem.
 			You can extract a pointer to the mtd structure
-			from a nand_chip pointer using the nand_to_mtd()
+			from a nand_chip pointer using the nandchip_to_mtd()
 			helper.
 		</para>
 		<para>
@@ -237,7 +237,7 @@  static void board_hwcontrol(struct mtd_info *mtd, int cmd)
 		<programlisting>
 static void board_hwcontrol(struct mtd_info *mtd, int cmd)
 {
-	struct nand_chip *this = mtd_to_nand(mtd);
+	struct nand_chip *this = mtd_to_nandchip(mtd);
 	switch(cmd){
 		case NAND_CTL_SETCLE: this->IO_ADDR_W |= CLE_ADRR_BIT;  break;
 		case NAND_CTL_CLRCLE: this->IO_ADDR_W &amp;= ~CLE_ADRR_BIT; break;
@@ -283,7 +283,7 @@  static int __init board_init (void)
 		goto out;
 	}
 
-	board_mtd = nand_to_mtd(this);
+	board_mtd = nandchip_to_mtd(this);
 
 	/* map physical address */
 	baseaddr = ioremap(CHIP_PHYSICAL_ADDRESS, 1024);
@@ -342,7 +342,7 @@  static void __exit board_cleanup (void)
 	iounmap(baseaddr);
 	
 	/* Free the MTD device structure */
-	kfree (mtd_to_nand(board_mtd));
+	kfree (mtd_to_nandchip(board_mtd));
 }
 module_exit(board_cleanup);
 #endif
@@ -398,7 +398,7 @@  static void board_select_chip (struct mtd_info *mtd, int chip)
 		<programlisting>
 static void board_select_chip (struct mtd_info *mtd, int chip)
 {
-	struct nand_chip *this = mtd_to_nand(mtd);
+	struct nand_chip *this = mtd_to_nandchip(mtd);
 	
 	/* Deselect all chips */
 	this->IO_ADDR_R &amp;= ~BOARD_NAND_ADDR_MASK;
diff --git a/arch/arm/mach-ep93xx/snappercl15.c b/arch/arm/mach-ep93xx/snappercl15.c
index 8b29398..d6f6094 100644
--- a/arch/arm/mach-ep93xx/snappercl15.c
+++ b/arch/arm/mach-ep93xx/snappercl15.c
@@ -49,7 +49,7 @@ 
 static void snappercl15_nand_cmd_ctrl(struct mtd_info *mtd, int cmd,
 				      unsigned int ctrl)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	static u16 nand_state = SNAPPERCL15_NAND_WPN;
 	u16 set;
 
@@ -76,7 +76,7 @@  static void snappercl15_nand_cmd_ctrl(struct mtd_info *mtd, int cmd,
 
 static int snappercl15_nand_dev_ready(struct mtd_info *mtd)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 
 	return !!(__raw_readw(NAND_CTRL_ADDR(chip)) & SNAPPERCL15_NAND_RDY);
 }
diff --git a/arch/arm/mach-ep93xx/ts72xx.c b/arch/arm/mach-ep93xx/ts72xx.c
index 8745162..500ad463 100644
--- a/arch/arm/mach-ep93xx/ts72xx.c
+++ b/arch/arm/mach-ep93xx/ts72xx.c
@@ -63,7 +63,7 @@  static void __init ts72xx_map_io(void)
 static void ts72xx_nand_hwcontrol(struct mtd_info *mtd,
 				  int cmd, unsigned int ctrl)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 
 	if (ctrl & NAND_CTRL_CHANGE) {
 		void __iomem *addr = chip->IO_ADDR_R;
@@ -85,7 +85,7 @@  static void ts72xx_nand_hwcontrol(struct mtd_info *mtd,
 
 static int ts72xx_nand_device_ready(struct mtd_info *mtd)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	void __iomem *addr = chip->IO_ADDR_R;
 
 	addr += (1 << TS72XX_NAND_BUSY_ADDR_LINE);
diff --git a/arch/arm/mach-imx/mach-qong.c b/arch/arm/mach-imx/mach-qong.c
index 42a7000..eda2297 100644
--- a/arch/arm/mach-imx/mach-qong.c
+++ b/arch/arm/mach-imx/mach-qong.c
@@ -131,7 +131,7 @@  static void qong_init_nor_mtd(void)
  */
 static void qong_nand_cmd_ctrl(struct mtd_info *mtd, int cmd, unsigned int ctrl)
 {
-	struct nand_chip *nand_chip = mtd_to_nand(mtd);
+	struct nand_chip *nand_chip = mtd_to_nandchip(mtd);
 
 	if (cmd == NAND_CMD_NONE)
 		return;
diff --git a/arch/arm/mach-ixp4xx/ixdp425-setup.c b/arch/arm/mach-ixp4xx/ixdp425-setup.c
index 93b89291..33a07c7 100644
--- a/arch/arm/mach-ixp4xx/ixdp425-setup.c
+++ b/arch/arm/mach-ixp4xx/ixdp425-setup.c
@@ -76,7 +76,7 @@ 
 static void
 ixdp425_flash_nand_cmd_ctrl(struct mtd_info *mtd, int cmd, unsigned int ctrl)
 {
-	struct nand_chip *this = mtd_to_nand(mtd);
+	struct nand_chip *this = mtd_to_nandchip(mtd);
 	int offset = (int)nand_get_controller_data(this);
 
 	if (ctrl & NAND_CTRL_CHANGE) {
diff --git a/arch/arm/mach-omap1/board-nand.c b/arch/arm/mach-omap1/board-nand.c
index 1bffbb4..617848c 100644
--- a/arch/arm/mach-omap1/board-nand.c
+++ b/arch/arm/mach-omap1/board-nand.c
@@ -22,7 +22,7 @@ 
 
 void omap1_nand_cmd_ctl(struct mtd_info *mtd, int cmd, unsigned int ctrl)
 {
-	struct nand_chip *this = mtd_to_nand(mtd);
+	struct nand_chip *this = mtd_to_nandchip(mtd);
 	unsigned long mask;
 
 	if (cmd == NAND_CMD_NONE)
diff --git a/arch/arm/mach-orion5x/ts78xx-setup.c b/arch/arm/mach-orion5x/ts78xx-setup.c
index 9477873..23c5a69 100644
--- a/arch/arm/mach-orion5x/ts78xx-setup.c
+++ b/arch/arm/mach-orion5x/ts78xx-setup.c
@@ -134,7 +134,7 @@  static void ts78xx_ts_rtc_unload(void)
 static void ts78xx_ts_nand_cmd_ctrl(struct mtd_info *mtd, int cmd,
 			unsigned int ctrl)
 {
-	struct nand_chip *this = mtd_to_nand(mtd);
+	struct nand_chip *this = mtd_to_nandchip(mtd);
 
 	if (ctrl & NAND_CTRL_CHANGE) {
 		unsigned char bits;
@@ -158,7 +158,7 @@  static int ts78xx_ts_nand_dev_ready(struct mtd_info *mtd)
 static void ts78xx_ts_nand_write_buf(struct mtd_info *mtd,
 			const uint8_t *buf, int len)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	void __iomem *io_base = chip->IO_ADDR_W;
 	unsigned long off = ((unsigned long)buf & 3);
 	int sz;
@@ -185,7 +185,7 @@  static void ts78xx_ts_nand_write_buf(struct mtd_info *mtd,
 static void ts78xx_ts_nand_read_buf(struct mtd_info *mtd,
 			uint8_t *buf, int len)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	void __iomem *io_base = chip->IO_ADDR_R;
 	unsigned long off = ((unsigned long)buf & 3);
 	int sz;
diff --git a/arch/arm/mach-pxa/balloon3.c b/arch/arm/mach-pxa/balloon3.c
index 33d7ef1..ea06411 100644
--- a/arch/arm/mach-pxa/balloon3.c
+++ b/arch/arm/mach-pxa/balloon3.c
@@ -573,7 +573,7 @@  static inline void balloon3_i2c_init(void) {}
 #if defined(CONFIG_MTD_NAND_PLATFORM)||defined(CONFIG_MTD_NAND_PLATFORM_MODULE)
 static void balloon3_nand_cmd_ctl(struct mtd_info *mtd, int cmd, unsigned int ctrl)
 {
-	struct nand_chip *this = mtd_to_nand(mtd);
+	struct nand_chip *this = mtd_to_nandchip(mtd);
 	uint8_t balloon3_ctl_set = 0, balloon3_ctl_clr = 0;
 
 	if (ctrl & NAND_CTRL_CHANGE) {
diff --git a/arch/arm/mach-pxa/em-x270.c b/arch/arm/mach-pxa/em-x270.c
index 6d28035..e072cc7 100644
--- a/arch/arm/mach-pxa/em-x270.c
+++ b/arch/arm/mach-pxa/em-x270.c
@@ -288,7 +288,7 @@  static void nand_cs_off(void)
 static void em_x270_nand_cmd_ctl(struct mtd_info *mtd, int dat,
 				 unsigned int ctrl)
 {
-	struct nand_chip *this = mtd_to_nand(mtd);
+	struct nand_chip *this = mtd_to_nandchip(mtd);
 	unsigned long nandaddr = (unsigned long)this->IO_ADDR_W;
 
 	dsb();
diff --git a/arch/arm/mach-pxa/palmtx.c b/arch/arm/mach-pxa/palmtx.c
index 47e3e38..7422e06 100644
--- a/arch/arm/mach-pxa/palmtx.c
+++ b/arch/arm/mach-pxa/palmtx.c
@@ -250,7 +250,7 @@  static inline void palmtx_keys_init(void) {}
 static void palmtx_nand_cmd_ctl(struct mtd_info *mtd, int cmd,
 				 unsigned int ctrl)
 {
-	struct nand_chip *this = mtd_to_nand(mtd);
+	struct nand_chip *this = mtd_to_nandchip(mtd);
 	char __iomem *nandaddr = this->IO_ADDR_W;
 
 	if (cmd == NAND_CMD_NONE)
diff --git a/arch/blackfin/mach-bf537/boards/stamp.c b/arch/blackfin/mach-bf537/boards/stamp.c
index ab3034f..af8e8be 100644
--- a/arch/blackfin/mach-bf537/boards/stamp.c
+++ b/arch/blackfin/mach-bf537/boards/stamp.c
@@ -404,7 +404,7 @@  void sl811_port_power(struct device *dev, int is_on)
 #define BFIN_NAND_PLAT_ALE 1
 static void bfin_plat_nand_cmd_ctrl(struct mtd_info *mtd, int cmd, unsigned int ctrl)
 {
-	struct nand_chip *this = mtd_to_nand(mtd);
+	struct nand_chip *this = mtd_to_nandchip(mtd);
 
 	if (cmd == NAND_CMD_NONE)
 		return;
diff --git a/arch/blackfin/mach-bf561/boards/acvilon.c b/arch/blackfin/mach-bf561/boards/acvilon.c
index 696cc9d..763fa1f 100644
--- a/arch/blackfin/mach-bf561/boards/acvilon.c
+++ b/arch/blackfin/mach-bf561/boards/acvilon.c
@@ -267,7 +267,7 @@  struct i2c_pca9564_pf_platform_data pca9564_platform_data = {
 static void bfin_plat_nand_cmd_ctrl(struct mtd_info *mtd, int cmd,
 				    unsigned int ctrl)
 {
-	struct nand_chip *this = mtd_to_nand(mtd);
+	struct nand_chip *this = mtd_to_nandchip(mtd);
 
 	if (cmd == NAND_CMD_NONE)
 		return;
diff --git a/arch/cris/arch-v32/drivers/mach-a3/nandflash.c b/arch/cris/arch-v32/drivers/mach-a3/nandflash.c
index 925a98e..eb22e7f 100644
--- a/arch/cris/arch-v32/drivers/mach-a3/nandflash.c
+++ b/arch/cris/arch-v32/drivers/mach-a3/nandflash.c
@@ -51,7 +51,7 @@  static void crisv32_hwcontrol(struct mtd_info *mtd, int cmd,
 {
 	unsigned long flags;
 	reg_pio_rw_dout dout;
-	struct nand_chip *this = mtd_to_nand(mtd);
+	struct nand_chip *this = mtd_to_nandchip(mtd);
 
 	local_irq_save(flags);
 
@@ -147,7 +147,7 @@  struct mtd_info *__init crisv32_nand_flash_probe(void)
 
 	/* Get pointer to private data */
 	this = &wrapper->chip;
-	crisv32_mtd = nand_to_mtd(this);
+	crisv32_mtd = nandchip_to_mtd(this);
 
 	/* Set address of NAND IO lines */
 	this->IO_ADDR_R = read_cs;
diff --git a/arch/cris/arch-v32/drivers/mach-fs/nandflash.c b/arch/cris/arch-v32/drivers/mach-fs/nandflash.c
index 53b56a4..0f24c31 100644
--- a/arch/cris/arch-v32/drivers/mach-fs/nandflash.c
+++ b/arch/cris/arch-v32/drivers/mach-fs/nandflash.c
@@ -50,7 +50,7 @@  static void crisv32_hwcontrol(struct mtd_info *mtd, int cmd,
 {
 	unsigned long flags;
 	reg_gio_rw_pa_dout dout;
-	struct nand_chip *this = mtd_to_nand(mtd);
+	struct nand_chip *this = mtd_to_nandchip(mtd);
 
 	local_irq_save(flags);
 
@@ -128,7 +128,7 @@  struct mtd_info *__init crisv32_nand_flash_probe(void)
 
 	/* Get pointer to private data */
 	this = &wrapper->chip;
-	crisv32_mtd = nand_to_mtd(this);
+	crisv32_mtd = nandchip_to_mtd(this);
 
 	pa_oe.oe |= 1 << CE_BIT;
 	pa_oe.oe |= 1 << ALE_BIT;
diff --git a/arch/mips/alchemy/devboards/db1200.c b/arch/mips/alchemy/devboards/db1200.c
index 8383100..c59401a 100644
--- a/arch/mips/alchemy/devboards/db1200.c
+++ b/arch/mips/alchemy/devboards/db1200.c
@@ -200,7 +200,7 @@  int __init db1200_board_setup(void)
 static void au1200_nand_cmd_ctrl(struct mtd_info *mtd, int cmd,
 				 unsigned int ctrl)
 {
-	struct nand_chip *this = mtd_to_nand(mtd);
+	struct nand_chip *this = mtd_to_nandchip(mtd);
 	unsigned long ioaddr = (unsigned long)this->IO_ADDR_W;
 
 	ioaddr &= 0xffffff00;
diff --git a/arch/mips/alchemy/devboards/db1300.c b/arch/mips/alchemy/devboards/db1300.c
index 3e7fbdb..0fefa40 100644
--- a/arch/mips/alchemy/devboards/db1300.c
+++ b/arch/mips/alchemy/devboards/db1300.c
@@ -151,7 +151,7 @@  static void __init db1300_gpio_config(void)
 static void au1300_nand_cmd_ctrl(struct mtd_info *mtd, int cmd,
 				 unsigned int ctrl)
 {
-	struct nand_chip *this = mtd_to_nand(mtd);
+	struct nand_chip *this = mtd_to_nandchip(mtd);
 	unsigned long ioaddr = (unsigned long)this->IO_ADDR_W;
 
 	ioaddr &= 0xffffff00;
diff --git a/arch/mips/alchemy/devboards/db1550.c b/arch/mips/alchemy/devboards/db1550.c
index 421bd57..28b7c33 100644
--- a/arch/mips/alchemy/devboards/db1550.c
+++ b/arch/mips/alchemy/devboards/db1550.c
@@ -128,7 +128,7 @@  int __init db1550_board_setup(void)
 static void au1550_nand_cmd_ctrl(struct mtd_info *mtd, int cmd,
 				 unsigned int ctrl)
 {
-	struct nand_chip *this = mtd_to_nand(mtd);
+	struct nand_chip *this = mtd_to_nandchip(mtd);
 	unsigned long ioaddr = (unsigned long)this->IO_ADDR_W;
 
 	ioaddr &= 0xffffff00;
diff --git a/arch/mips/jz4740/board-qi_lb60.c b/arch/mips/jz4740/board-qi_lb60.c
index a5bd94b..712cf36 100644
--- a/arch/mips/jz4740/board-qi_lb60.c
+++ b/arch/mips/jz4740/board-qi_lb60.c
@@ -138,7 +138,7 @@  static void qi_lb60_nand_ident(struct platform_device *pdev,
 		struct mtd_info *mtd, struct mtd_partition **partitions,
 		int *num_partitions)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 
 	if (chip->page_shift == 12) {
 		*partitions = qi_lb60_partitions_2gb;
diff --git a/arch/mips/pnx833x/common/platform.c b/arch/mips/pnx833x/common/platform.c
index a7a4e9f..4610f3f 100644
--- a/arch/mips/pnx833x/common/platform.c
+++ b/arch/mips/pnx833x/common/platform.c
@@ -180,7 +180,7 @@  struct pnx8xxx_port pnx8xxx_ports[] = {
 static void
 pnx833x_flash_nand_cmd_ctrl(struct mtd_info *mtd, int cmd, unsigned int ctrl)
 {
-	struct nand_chip *this = mtd_to_nand(mtd);
+	struct nand_chip *this = mtd_to_nandchip(mtd);
 	unsigned long nandaddr = (unsigned long)this->IO_ADDR_W;
 
 	if (cmd == NAND_CMD_NONE)
diff --git a/arch/mips/rb532/devices.c b/arch/mips/rb532/devices.c
index 32ea3e6..b736745 100644
--- a/arch/mips/rb532/devices.c
+++ b/arch/mips/rb532/devices.c
@@ -148,7 +148,7 @@  static int rb532_dev_ready(struct mtd_info *mtd)
 
 static void rb532_cmd_ctrl(struct mtd_info *mtd, int cmd, unsigned int ctrl)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	unsigned char orbits, nandbits;
 
 	if (ctrl & NAND_CTRL_CHANGE) {
diff --git a/arch/sh/boards/mach-migor/setup.c b/arch/sh/boards/mach-migor/setup.c
index 0bcbe58..be81869 100644
--- a/arch/sh/boards/mach-migor/setup.c
+++ b/arch/sh/boards/mach-migor/setup.c
@@ -166,7 +166,7 @@ 
 static void migor_nand_flash_cmd_ctl(struct mtd_info *mtd, int cmd,
 				     unsigned int ctrl)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 
 	if (cmd == NAND_CMD_NONE)
 		return;
diff --git a/drivers/mtd/nand/raw/ams-delta.c b/drivers/mtd/nand/raw/ams-delta.c
index dcec9cf..be6166c 100644
--- a/drivers/mtd/nand/raw/ams-delta.c
+++ b/drivers/mtd/nand/raw/ams-delta.c
@@ -64,7 +64,7 @@ 
 
 static void ams_delta_write_byte(struct mtd_info *mtd, u_char byte)
 {
-	struct nand_chip *this = mtd_to_nand(mtd);
+	struct nand_chip *this = mtd_to_nandchip(mtd);
 	void __iomem *io_base = (void __iomem *)nand_get_controller_data(this);
 
 	writew(0, io_base + OMAP_MPUIO_IO_CNTL);
@@ -77,7 +77,7 @@  static void ams_delta_write_byte(struct mtd_info *mtd, u_char byte)
 static u_char ams_delta_read_byte(struct mtd_info *mtd)
 {
 	u_char res;
-	struct nand_chip *this = mtd_to_nand(mtd);
+	struct nand_chip *this = mtd_to_nandchip(mtd);
 	void __iomem *io_base = (void __iomem *)nand_get_controller_data(this);
 
 	gpio_set_value(AMS_DELTA_GPIO_PIN_NAND_NRE, 0);
@@ -190,7 +190,7 @@  static int ams_delta_init(struct platform_device *pdev)
 		goto out;
 	}
 
-	ams_delta_mtd = nand_to_mtd(this);
+	ams_delta_mtd = nandchip_to_mtd(this);
 	ams_delta_mtd->owner = THIS_MODULE;
 
 	/*
@@ -270,7 +270,7 @@  static int ams_delta_cleanup(struct platform_device *pdev)
 	iounmap(io_base);
 
 	/* Free the MTD device structure */
-	kfree(mtd_to_nand(ams_delta_mtd));
+	kfree(mtd_to_nandchip(ams_delta_mtd));
 
 	return 0;
 }
diff --git a/drivers/mtd/nand/raw/atmel/nand-controller.c b/drivers/mtd/nand/raw/atmel/nand-controller.c
index 9abfc5d..747bcd3 100644
--- a/drivers/mtd/nand/raw/atmel/nand-controller.c
+++ b/drivers/mtd/nand/raw/atmel/nand-controller.c
@@ -403,7 +403,7 @@  static int atmel_nand_dma_transfer(struct atmel_nand_controller *nc,
 
 static u8 atmel_nand_read_byte(struct mtd_info *mtd)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	struct atmel_nand *nand = to_atmel_nand(chip);
 
 	return ioread8(nand->activecs->io.virt);
@@ -411,7 +411,7 @@  static u8 atmel_nand_read_byte(struct mtd_info *mtd)
 
 static u16 atmel_nand_read_word(struct mtd_info *mtd)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	struct atmel_nand *nand = to_atmel_nand(chip);
 
 	return ioread16(nand->activecs->io.virt);
@@ -419,7 +419,7 @@  static u16 atmel_nand_read_word(struct mtd_info *mtd)
 
 static void atmel_nand_write_byte(struct mtd_info *mtd, u8 byte)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	struct atmel_nand *nand = to_atmel_nand(chip);
 
 	if (chip->options & NAND_BUSWIDTH_16)
@@ -430,7 +430,7 @@  static void atmel_nand_write_byte(struct mtd_info *mtd, u8 byte)
 
 static void atmel_nand_read_buf(struct mtd_info *mtd, u8 *buf, int len)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	struct atmel_nand *nand = to_atmel_nand(chip);
 	struct atmel_nand_controller *nc;
 
@@ -455,7 +455,7 @@  static void atmel_nand_read_buf(struct mtd_info *mtd, u8 *buf, int len)
 
 static void atmel_nand_write_buf(struct mtd_info *mtd, const u8 *buf, int len)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	struct atmel_nand *nand = to_atmel_nand(chip);
 	struct atmel_nand_controller *nc;
 
@@ -480,7 +480,7 @@  static void atmel_nand_write_buf(struct mtd_info *mtd, const u8 *buf, int len)
 
 static int atmel_nand_dev_ready(struct mtd_info *mtd)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	struct atmel_nand *nand = to_atmel_nand(chip);
 
 	return gpiod_get_value(nand->activecs->rb.gpio);
@@ -488,7 +488,7 @@  static int atmel_nand_dev_ready(struct mtd_info *mtd)
 
 static void atmel_nand_select_chip(struct mtd_info *mtd, int cs)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	struct atmel_nand *nand = to_atmel_nand(chip);
 
 	if (cs < 0 || cs >= nand->numcs) {
@@ -505,7 +505,7 @@  static void atmel_nand_select_chip(struct mtd_info *mtd, int cs)
 
 static int atmel_hsmc_nand_dev_ready(struct mtd_info *mtd)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	struct atmel_nand *nand = to_atmel_nand(chip);
 	struct atmel_hsmc_nand_controller *nc;
 	u32 status;
@@ -519,7 +519,7 @@  static int atmel_hsmc_nand_dev_ready(struct mtd_info *mtd)
 
 static void atmel_hsmc_nand_select_chip(struct mtd_info *mtd, int cs)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	struct atmel_nand *nand = to_atmel_nand(chip);
 	struct atmel_hsmc_nand_controller *nc;
 
@@ -601,7 +601,7 @@  static int atmel_nfc_exec_op(struct atmel_hsmc_nand_controller *nc, bool poll)
 static void atmel_hsmc_nand_cmd_ctrl(struct mtd_info *mtd, int dat,
 				     unsigned int ctrl)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	struct atmel_nand *nand = to_atmel_nand(chip);
 	struct atmel_hsmc_nand_controller *nc;
 
@@ -628,7 +628,7 @@  static void atmel_hsmc_nand_cmd_ctrl(struct mtd_info *mtd, int dat,
 static void atmel_nand_cmd_ctrl(struct mtd_info *mtd, int cmd,
 				unsigned int ctrl)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	struct atmel_nand *nand = to_atmel_nand(chip);
 	struct atmel_nand_controller *nc;
 
@@ -650,7 +650,7 @@  static void atmel_nand_cmd_ctrl(struct mtd_info *mtd, int cmd,
 static void atmel_nfc_copy_to_sram(struct nand_chip *chip, const u8 *buf,
 				   bool oob_required)
 {
-	struct mtd_info *mtd = nand_to_mtd(chip);
+	struct mtd_info *mtd = nandchip_to_mtd(chip);
 	struct atmel_hsmc_nand_controller *nc;
 	int ret = -EIO;
 
@@ -673,7 +673,7 @@  static void atmel_nfc_copy_to_sram(struct nand_chip *chip, const u8 *buf,
 static void atmel_nfc_copy_from_sram(struct nand_chip *chip, u8 *buf,
 				     bool oob_required)
 {
-	struct mtd_info *mtd = nand_to_mtd(chip);
+	struct mtd_info *mtd = nandchip_to_mtd(chip);
 	struct atmel_hsmc_nand_controller *nc;
 	int ret = -EIO;
 
@@ -694,7 +694,7 @@  static void atmel_nfc_copy_from_sram(struct nand_chip *chip, u8 *buf,
 
 static void atmel_nfc_set_op_addr(struct nand_chip *chip, int page, int column)
 {
-	struct mtd_info *mtd = nand_to_mtd(chip);
+	struct mtd_info *mtd = nandchip_to_mtd(chip);
 	struct atmel_hsmc_nand_controller *nc;
 
 	nc = to_hsmc_nand_controller(chip->controller);
@@ -749,7 +749,7 @@  static void atmel_nand_pmecc_disable(struct nand_chip *chip, bool raw)
 static int atmel_nand_pmecc_generate_eccbytes(struct nand_chip *chip, bool raw)
 {
 	struct atmel_nand *nand = to_atmel_nand(chip);
-	struct mtd_info *mtd = nand_to_mtd(chip);
+	struct mtd_info *mtd = nandchip_to_mtd(chip);
 	struct atmel_nand_controller *nc;
 	struct mtd_oob_region oobregion;
 	void *eccbuf;
@@ -784,7 +784,7 @@  static int atmel_nand_pmecc_correct_data(struct nand_chip *chip, void *buf,
 					 bool raw)
 {
 	struct atmel_nand *nand = to_atmel_nand(chip);
-	struct mtd_info *mtd = nand_to_mtd(chip);
+	struct mtd_info *mtd = nandchip_to_mtd(chip);
 	struct atmel_nand_controller *nc;
 	struct mtd_oob_region oobregion;
 	int ret, i, max_bitflips = 0;
@@ -833,7 +833,7 @@  static int atmel_nand_pmecc_correct_data(struct nand_chip *chip, void *buf,
 static int atmel_nand_pmecc_write_pg(struct nand_chip *chip, const u8 *buf,
 				     bool oob_required, int page, bool raw)
 {
-	struct mtd_info *mtd = nand_to_mtd(chip);
+	struct mtd_info *mtd = nandchip_to_mtd(chip);
 	struct atmel_nand *nand = to_atmel_nand(chip);
 	int ret;
 
@@ -874,7 +874,7 @@  static int atmel_nand_pmecc_write_page_raw(struct mtd_info *mtd,
 static int atmel_nand_pmecc_read_pg(struct nand_chip *chip, u8 *buf,
 				    bool oob_required, int page, bool raw)
 {
-	struct mtd_info *mtd = nand_to_mtd(chip);
+	struct mtd_info *mtd = nandchip_to_mtd(chip);
 	int ret;
 
 	ret = atmel_nand_pmecc_enable(chip, NAND_ECC_READ, raw);
@@ -909,7 +909,7 @@  static int atmel_hsmc_nand_pmecc_write_pg(struct nand_chip *chip,
 					  const u8 *buf, bool oob_required,
 					  int page, bool raw)
 {
-	struct mtd_info *mtd = nand_to_mtd(chip);
+	struct mtd_info *mtd = nandchip_to_mtd(chip);
 	struct atmel_nand *nand = to_atmel_nand(chip);
 	struct atmel_hsmc_nand_controller *nc;
 	int ret;
@@ -979,7 +979,7 @@  static int atmel_hsmc_nand_pmecc_read_pg(struct nand_chip *chip, u8 *buf,
 					 bool oob_required, int page,
 					 bool raw)
 {
-	struct mtd_info *mtd = nand_to_mtd(chip);
+	struct mtd_info *mtd = nandchip_to_mtd(chip);
 	struct atmel_nand *nand = to_atmel_nand(chip);
 	struct atmel_hsmc_nand_controller *nc;
 	int ret;
@@ -1048,7 +1048,7 @@  static int atmel_hsmc_nand_pmecc_read_page_raw(struct mtd_info *mtd,
 
 static int atmel_nand_pmecc_init(struct nand_chip *chip)
 {
-	struct mtd_info *mtd = nand_to_mtd(chip);
+	struct mtd_info *mtd = nandchip_to_mtd(chip);
 	struct atmel_nand *nand = to_atmel_nand(chip);
 	struct atmel_nand_controller *nc;
 	struct atmel_pmecc_user_req req;
@@ -1179,7 +1179,7 @@  static void atmel_nand_init(struct atmel_nand_controller *nc,
 			    struct atmel_nand *nand)
 {
 	struct nand_chip *chip = &nand->base;
-	struct mtd_info *mtd = nand_to_mtd(chip);
+	struct mtd_info *mtd = nandchip_to_mtd(chip);
 
 	mtd->dev.parent = nc->dev;
 	nand->base.controller = &nc->base;
@@ -1241,7 +1241,7 @@  static void atmel_hsmc_nand_init(struct atmel_nand_controller *nc,
 static int atmel_nand_detect(struct atmel_nand *nand)
 {
 	struct nand_chip *chip = &nand->base;
-	struct mtd_info *mtd = nand_to_mtd(chip);
+	struct mtd_info *mtd = nandchip_to_mtd(chip);
 	struct atmel_nand_controller *nc;
 	int ret;
 
@@ -1257,7 +1257,7 @@  static int atmel_nand_detect(struct atmel_nand *nand)
 static int atmel_nand_unregister(struct atmel_nand *nand)
 {
 	struct nand_chip *chip = &nand->base;
-	struct mtd_info *mtd = nand_to_mtd(chip);
+	struct mtd_info *mtd = nandchip_to_mtd(chip);
 	int ret;
 
 	ret = mtd_device_unregister(mtd);
@@ -1273,7 +1273,7 @@  static int atmel_nand_unregister(struct atmel_nand *nand)
 static int atmel_nand_register(struct atmel_nand *nand)
 {
 	struct nand_chip *chip = &nand->base;
-	struct mtd_info *mtd = nand_to_mtd(chip);
+	struct mtd_info *mtd = nandchip_to_mtd(chip);
 	struct atmel_nand_controller *nc;
 	int ret;
 
diff --git a/drivers/mtd/nand/raw/au1550nd.c b/drivers/mtd/nand/raw/au1550nd.c
index 9d4a28f..f56ce91 100644
--- a/drivers/mtd/nand/raw/au1550nd.c
+++ b/drivers/mtd/nand/raw/au1550nd.c
@@ -38,7 +38,7 @@  struct au1550nd_ctx {
  */
 static u_char au_read_byte(struct mtd_info *mtd)
 {
-	struct nand_chip *this = mtd_to_nand(mtd);
+	struct nand_chip *this = mtd_to_nandchip(mtd);
 	u_char ret = readb(this->IO_ADDR_R);
 	wmb(); /* drain writebuffer */
 	return ret;
@@ -53,7 +53,7 @@  static u_char au_read_byte(struct mtd_info *mtd)
  */
 static void au_write_byte(struct mtd_info *mtd, u_char byte)
 {
-	struct nand_chip *this = mtd_to_nand(mtd);
+	struct nand_chip *this = mtd_to_nandchip(mtd);
 	writeb(byte, this->IO_ADDR_W);
 	wmb(); /* drain writebuffer */
 }
@@ -66,7 +66,7 @@  static void au_write_byte(struct mtd_info *mtd, u_char byte)
  */
 static u_char au_read_byte16(struct mtd_info *mtd)
 {
-	struct nand_chip *this = mtd_to_nand(mtd);
+	struct nand_chip *this = mtd_to_nandchip(mtd);
 	u_char ret = (u_char) cpu_to_le16(readw(this->IO_ADDR_R));
 	wmb(); /* drain writebuffer */
 	return ret;
@@ -81,7 +81,7 @@  static u_char au_read_byte16(struct mtd_info *mtd)
  */
 static void au_write_byte16(struct mtd_info *mtd, u_char byte)
 {
-	struct nand_chip *this = mtd_to_nand(mtd);
+	struct nand_chip *this = mtd_to_nandchip(mtd);
 	writew(le16_to_cpu((u16) byte), this->IO_ADDR_W);
 	wmb(); /* drain writebuffer */
 }
@@ -94,7 +94,7 @@  static void au_write_byte16(struct mtd_info *mtd, u_char byte)
  */
 static u16 au_read_word(struct mtd_info *mtd)
 {
-	struct nand_chip *this = mtd_to_nand(mtd);
+	struct nand_chip *this = mtd_to_nandchip(mtd);
 	u16 ret = readw(this->IO_ADDR_R);
 	wmb(); /* drain writebuffer */
 	return ret;
@@ -111,7 +111,7 @@  static u16 au_read_word(struct mtd_info *mtd)
 static void au_write_buf(struct mtd_info *mtd, const u_char *buf, int len)
 {
 	int i;
-	struct nand_chip *this = mtd_to_nand(mtd);
+	struct nand_chip *this = mtd_to_nandchip(mtd);
 
 	for (i = 0; i < len; i++) {
 		writeb(buf[i], this->IO_ADDR_W);
@@ -130,7 +130,7 @@  static void au_write_buf(struct mtd_info *mtd, const u_char *buf, int len)
 static void au_read_buf(struct mtd_info *mtd, u_char *buf, int len)
 {
 	int i;
-	struct nand_chip *this = mtd_to_nand(mtd);
+	struct nand_chip *this = mtd_to_nandchip(mtd);
 
 	for (i = 0; i < len; i++) {
 		buf[i] = readb(this->IO_ADDR_R);
@@ -149,7 +149,7 @@  static void au_read_buf(struct mtd_info *mtd, u_char *buf, int len)
 static void au_write_buf16(struct mtd_info *mtd, const u_char *buf, int len)
 {
 	int i;
-	struct nand_chip *this = mtd_to_nand(mtd);
+	struct nand_chip *this = mtd_to_nandchip(mtd);
 	u16 *p = (u16 *) buf;
 	len >>= 1;
 
@@ -171,7 +171,7 @@  static void au_write_buf16(struct mtd_info *mtd, const u_char *buf, int len)
 static void au_read_buf16(struct mtd_info *mtd, u_char *buf, int len)
 {
 	int i;
-	struct nand_chip *this = mtd_to_nand(mtd);
+	struct nand_chip *this = mtd_to_nandchip(mtd);
 	u16 *p = (u16 *) buf;
 	len >>= 1;
 
@@ -196,7 +196,7 @@  static void au_read_buf16(struct mtd_info *mtd, u_char *buf, int len)
 
 static void au1550_hwcontrol(struct mtd_info *mtd, int cmd)
 {
-	struct nand_chip *this = mtd_to_nand(mtd);
+	struct nand_chip *this = mtd_to_nandchip(mtd);
 	struct au1550nd_ctx *ctx = container_of(this, struct au1550nd_ctx,
 						chip);
 
@@ -267,7 +267,7 @@  static void au1550_select_chip(struct mtd_info *mtd, int chip)
  */
 static void au1550_command(struct mtd_info *mtd, unsigned command, int column, int page_addr)
 {
-	struct nand_chip *this = mtd_to_nand(mtd);
+	struct nand_chip *this = mtd_to_nandchip(mtd);
 	struct au1550nd_ctx *ctx = container_of(this, struct au1550nd_ctx,
 						chip);
 	int ce_override = 0, i;
@@ -440,7 +440,7 @@  static int au1550nd_probe(struct platform_device *pdev)
 	}
 
 	this = &ctx->chip;
-	mtd = nand_to_mtd(this);
+	mtd = nandchip_to_mtd(this);
 	mtd->dev.parent = &pdev->dev;
 
 	/* figure out which CS# r->start belongs to */
@@ -496,7 +496,7 @@  static int au1550nd_remove(struct platform_device *pdev)
 	struct au1550nd_ctx *ctx = platform_get_drvdata(pdev);
 	struct resource *r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 
-	nand_release(nand_to_mtd(&ctx->chip));
+	nand_release(nandchip_to_mtd(&ctx->chip));
 	iounmap(ctx->base);
 	release_mem_region(r->start, 0x1000);
 	kfree(ctx);
diff --git a/drivers/mtd/nand/raw/bcm47xxnflash/main.c b/drivers/mtd/nand/raw/bcm47xxnflash/main.c
index fb31429..564b53a 100644
--- a/drivers/mtd/nand/raw/bcm47xxnflash/main.c
+++ b/drivers/mtd/nand/raw/bcm47xxnflash/main.c
@@ -35,7 +35,7 @@  static int bcm47xxnflash_probe(struct platform_device *pdev)
 		return -ENOMEM;
 
 	nand_set_controller_data(&b47n->nand_chip, b47n);
-	mtd = nand_to_mtd(&b47n->nand_chip);
+	mtd = nandchip_to_mtd(&b47n->nand_chip);
 	mtd->dev.parent = &pdev->dev;
 	b47n->cc = container_of(nflash, struct bcma_drv_cc, nflash);
 
@@ -65,7 +65,7 @@  static int bcm47xxnflash_remove(struct platform_device *pdev)
 {
 	struct bcm47xxnflash *nflash = platform_get_drvdata(pdev);
 
-	nand_release(nand_to_mtd(&nflash->nand_chip));
+	nand_release(nandchip_to_mtd(&nflash->nand_chip));
 
 	return 0;
 }
diff --git a/drivers/mtd/nand/raw/bcm47xxnflash/ops_bcm4706.c b/drivers/mtd/nand/raw/bcm47xxnflash/ops_bcm4706.c
index f1da4ea..78bfcdb 100644
--- a/drivers/mtd/nand/raw/bcm47xxnflash/ops_bcm4706.c
+++ b/drivers/mtd/nand/raw/bcm47xxnflash/ops_bcm4706.c
@@ -89,7 +89,7 @@  static int bcm47xxnflash_ops_bcm4706_poll(struct bcma_drv_cc *cc)
 static void bcm47xxnflash_ops_bcm4706_read(struct mtd_info *mtd, uint8_t *buf,
 					   int len)
 {
-	struct nand_chip *nand_chip = mtd_to_nand(mtd);
+	struct nand_chip *nand_chip = mtd_to_nandchip(mtd);
 	struct bcm47xxnflash *b47n = nand_get_controller_data(nand_chip);
 
 	u32 ctlcode;
@@ -139,7 +139,7 @@  static void bcm47xxnflash_ops_bcm4706_read(struct mtd_info *mtd, uint8_t *buf,
 static void bcm47xxnflash_ops_bcm4706_write(struct mtd_info *mtd,
 					    const uint8_t *buf, int len)
 {
-	struct nand_chip *nand_chip = mtd_to_nand(mtd);
+	struct nand_chip *nand_chip = mtd_to_nandchip(mtd);
 	struct bcm47xxnflash *b47n = nand_get_controller_data(nand_chip);
 	struct bcma_drv_cc *cc = b47n->cc;
 
@@ -173,7 +173,7 @@  static void bcm47xxnflash_ops_bcm4706_write(struct mtd_info *mtd,
 static void bcm47xxnflash_ops_bcm4706_cmd_ctrl(struct mtd_info *mtd, int cmd,
 					       unsigned int ctrl)
 {
-	struct nand_chip *nand_chip = mtd_to_nand(mtd);
+	struct nand_chip *nand_chip = mtd_to_nandchip(mtd);
 	struct bcm47xxnflash *b47n = nand_get_controller_data(nand_chip);
 	u32 code = 0;
 
@@ -199,7 +199,7 @@  static void bcm47xxnflash_ops_bcm4706_select_chip(struct mtd_info *mtd,
 
 static int bcm47xxnflash_ops_bcm4706_dev_ready(struct mtd_info *mtd)
 {
-	struct nand_chip *nand_chip = mtd_to_nand(mtd);
+	struct nand_chip *nand_chip = mtd_to_nandchip(mtd);
 	struct bcm47xxnflash *b47n = nand_get_controller_data(nand_chip);
 
 	return !!(bcma_cc_read32(b47n->cc, BCMA_CC_NFLASH_CTL) & NCTL_READY);
@@ -216,7 +216,7 @@  static void bcm47xxnflash_ops_bcm4706_cmdfunc(struct mtd_info *mtd,
 					      unsigned command, int column,
 					      int page_addr)
 {
-	struct nand_chip *nand_chip = mtd_to_nand(mtd);
+	struct nand_chip *nand_chip = mtd_to_nandchip(mtd);
 	struct bcm47xxnflash *b47n = nand_get_controller_data(nand_chip);
 	struct bcma_drv_cc *cc = b47n->cc;
 	u32 ctlcode;
@@ -312,7 +312,7 @@  static void bcm47xxnflash_ops_bcm4706_cmdfunc(struct mtd_info *mtd,
 
 static u8 bcm47xxnflash_ops_bcm4706_read_byte(struct mtd_info *mtd)
 {
-	struct nand_chip *nand_chip = mtd_to_nand(mtd);
+	struct nand_chip *nand_chip = mtd_to_nandchip(mtd);
 	struct bcm47xxnflash *b47n = nand_get_controller_data(nand_chip);
 	struct bcma_drv_cc *cc = b47n->cc;
 	u32 tmp = 0;
@@ -341,7 +341,7 @@  static u8 bcm47xxnflash_ops_bcm4706_read_byte(struct mtd_info *mtd)
 static void bcm47xxnflash_ops_bcm4706_read_buf(struct mtd_info *mtd,
 					       uint8_t *buf, int len)
 {
-	struct nand_chip *nand_chip = mtd_to_nand(mtd);
+	struct nand_chip *nand_chip = mtd_to_nandchip(mtd);
 	struct bcm47xxnflash *b47n = nand_get_controller_data(nand_chip);
 
 	switch (b47n->curr_command) {
@@ -357,7 +357,7 @@  static void bcm47xxnflash_ops_bcm4706_read_buf(struct mtd_info *mtd,
 static void bcm47xxnflash_ops_bcm4706_write_buf(struct mtd_info *mtd,
 						const uint8_t *buf, int len)
 {
-	struct nand_chip *nand_chip = mtd_to_nand(mtd);
+	struct nand_chip *nand_chip = mtd_to_nandchip(mtd);
 	struct bcm47xxnflash *b47n = nand_get_controller_data(nand_chip);
 
 	switch (b47n->curr_command) {
@@ -421,7 +421,7 @@  int bcm47xxnflash_ops_bcm4706_init(struct bcm47xxnflash *b47n)
 			(w4 << 24 | w3 << 18 | w2 << 12 | w1 << 6 | w0));
 
 	/* Scan NAND */
-	err = nand_scan(nand_to_mtd(&b47n->nand_chip), 1);
+	err = nand_scan(nandchip_to_mtd(&b47n->nand_chip), 1);
 	if (err) {
 		pr_err("Could not scan NAND flash: %d\n", err);
 		goto exit;
diff --git a/drivers/mtd/nand/raw/bf5xx_nand.c b/drivers/mtd/nand/raw/bf5xx_nand.c
index 5655dca..790dbf6 100644
--- a/drivers/mtd/nand/raw/bf5xx_nand.c
+++ b/drivers/mtd/nand/raw/bf5xx_nand.c
@@ -162,9 +162,9 @@  struct bf5xx_nand_info {
 /*
  * Conversion functions
  */
-static struct bf5xx_nand_info *mtd_to_nand_info(struct mtd_info *mtd)
+static struct bf5xx_nand_info *mtd_to_nandchip_info(struct mtd_info *mtd)
 {
-	return container_of(mtd_to_nand(mtd), struct bf5xx_nand_info,
+	return container_of(mtd_to_nandchip(mtd), struct bf5xx_nand_info,
 			    chip);
 }
 
@@ -230,7 +230,7 @@  static int bf5xx_nand_devready(struct mtd_info *mtd)
 static int bf5xx_nand_correct_data_256(struct mtd_info *mtd, u_char *dat,
 					u_char *read_ecc, u_char *calc_ecc)
 {
-	struct bf5xx_nand_info *info = mtd_to_nand_info(mtd);
+	struct bf5xx_nand_info *info = mtd_to_nandchip_info(mtd);
 	u32 syndrome[5];
 	u32 calced, stored;
 	int i;
@@ -309,7 +309,7 @@  static int bf5xx_nand_correct_data_256(struct mtd_info *mtd, u_char *dat,
 static int bf5xx_nand_correct_data(struct mtd_info *mtd, u_char *dat,
 					u_char *read_ecc, u_char *calc_ecc)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	int ret, bitflips = 0;
 
 	ret = bf5xx_nand_correct_data_256(mtd, dat, read_ecc, calc_ecc);
@@ -341,8 +341,8 @@  static void bf5xx_nand_enable_hwecc(struct mtd_info *mtd, int mode)
 static int bf5xx_nand_calculate_ecc(struct mtd_info *mtd,
 		const u_char *dat, u_char *ecc_code)
 {
-	struct bf5xx_nand_info *info = mtd_to_nand_info(mtd);
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct bf5xx_nand_info *info = mtd_to_nandchip_info(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	u16 ecc0, ecc1;
 	u32 code[2];
 	u8 *p;
@@ -478,8 +478,8 @@  static irqreturn_t bf5xx_nand_dma_irq(int irq, void *dev_id)
 static void bf5xx_nand_dma_rw(struct mtd_info *mtd,
 				uint8_t *buf, int is_read)
 {
-	struct bf5xx_nand_info *info = mtd_to_nand_info(mtd);
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct bf5xx_nand_info *info = mtd_to_nandchip_info(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	unsigned short val;
 
 	dev_dbg(info->device, " mtd->%p, buf->%p, is_read %d\n",
@@ -544,8 +544,8 @@  static void bf5xx_nand_dma_rw(struct mtd_info *mtd,
 static void bf5xx_nand_dma_read_buf(struct mtd_info *mtd,
 					uint8_t *buf, int len)
 {
-	struct bf5xx_nand_info *info = mtd_to_nand_info(mtd);
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct bf5xx_nand_info *info = mtd_to_nandchip_info(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 
 	dev_dbg(info->device, "mtd->%p, buf->%p, int %d\n", mtd, buf, len);
 
@@ -558,8 +558,8 @@  static void bf5xx_nand_dma_read_buf(struct mtd_info *mtd,
 static void bf5xx_nand_dma_write_buf(struct mtd_info *mtd,
 				const uint8_t *buf, int len)
 {
-	struct bf5xx_nand_info *info = mtd_to_nand_info(mtd);
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct bf5xx_nand_info *info = mtd_to_nandchip_info(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 
 	dev_dbg(info->device, "mtd->%p, buf->%p, len %d\n", mtd, buf, len);
 
@@ -673,7 +673,7 @@  static int bf5xx_nand_hw_init(struct bf5xx_nand_info *info)
  */
 static int bf5xx_nand_add_partition(struct bf5xx_nand_info *info)
 {
-	struct mtd_info *mtd = nand_to_mtd(&info->chip);
+	struct mtd_info *mtd = nandchip_to_mtd(&info->chip);
 	struct mtd_partition *parts = info->platform->partitions;
 	int nr = info->platform->nr_partitions;
 
@@ -688,7 +688,7 @@  static int bf5xx_nand_remove(struct platform_device *pdev)
 	 * and their partitions, then go through freeing the
 	 * resources used
 	 */
-	nand_release(nand_to_mtd(&info->chip));
+	nand_release(nandchip_to_mtd(&info->chip));
 
 	peripheral_free_list(bfin_nfc_pin_req);
 	bf5xx_nand_dma_remove(info);
@@ -698,7 +698,7 @@  static int bf5xx_nand_remove(struct platform_device *pdev)
 
 static int bf5xx_nand_scan(struct mtd_info *mtd)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	int ret;
 
 	ret = nand_scan_ident(mtd, 1, NULL);
@@ -768,7 +768,7 @@  static int bf5xx_nand_probe(struct platform_device *pdev)
 
 	/* initialise chip data struct */
 	chip = &info->chip;
-	mtd = nand_to_mtd(&info->chip);
+	mtd = nandchip_to_mtd(&info->chip);
 
 	if (plat->data_width)
 		chip->options |= NAND_BUSWIDTH_16;
diff --git a/drivers/mtd/nand/raw/brcmnand/brcmnand.c b/drivers/mtd/nand/raw/brcmnand/brcmnand.c
index e0eb51d..c3c22ba 100644
--- a/drivers/mtd/nand/raw/brcmnand/brcmnand.c
+++ b/drivers/mtd/nand/raw/brcmnand/brcmnand.c
@@ -872,7 +872,7 @@  static inline bool is_hamming_ecc(struct brcmnand_controller *ctrl,
 static int brcmnand_hamming_ooblayout_ecc(struct mtd_info *mtd, int section,
 					  struct mtd_oob_region *oobregion)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	struct brcmnand_host *host = nand_get_controller_data(chip);
 	struct brcmnand_cfg *cfg = &host->hwcfg;
 	int sas = cfg->spare_area_size << cfg->sector_size_1k;
@@ -890,7 +890,7 @@  static int brcmnand_hamming_ooblayout_ecc(struct mtd_info *mtd, int section,
 static int brcmnand_hamming_ooblayout_free(struct mtd_info *mtd, int section,
 					   struct mtd_oob_region *oobregion)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	struct brcmnand_host *host = nand_get_controller_data(chip);
 	struct brcmnand_cfg *cfg = &host->hwcfg;
 	int sas = cfg->spare_area_size << cfg->sector_size_1k;
@@ -930,7 +930,7 @@  static int brcmnand_hamming_ooblayout_free(struct mtd_info *mtd, int section,
 static int brcmnand_bch_ooblayout_ecc(struct mtd_info *mtd, int section,
 				      struct mtd_oob_region *oobregion)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	struct brcmnand_host *host = nand_get_controller_data(chip);
 	struct brcmnand_cfg *cfg = &host->hwcfg;
 	int sas = cfg->spare_area_size << cfg->sector_size_1k;
@@ -948,7 +948,7 @@  static int brcmnand_bch_ooblayout_ecc(struct mtd_info *mtd, int section,
 static int brcmnand_bch_ooblayout_free_lp(struct mtd_info *mtd, int section,
 					  struct mtd_oob_region *oobregion)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	struct brcmnand_host *host = nand_get_controller_data(chip);
 	struct brcmnand_cfg *cfg = &host->hwcfg;
 	int sas = cfg->spare_area_size << cfg->sector_size_1k;
@@ -974,7 +974,7 @@  static int brcmnand_bch_ooblayout_free_lp(struct mtd_info *mtd, int section,
 static int brcmnand_bch_ooblayout_free_sp(struct mtd_info *mtd, int section,
 					  struct mtd_oob_region *oobregion)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	struct brcmnand_host *host = nand_get_controller_data(chip);
 	struct brcmnand_cfg *cfg = &host->hwcfg;
 	int sas = cfg->spare_area_size << cfg->sector_size_1k;
@@ -1007,7 +1007,7 @@  static int brcmnand_bch_ooblayout_free_sp(struct mtd_info *mtd, int section,
 static int brcmstb_choose_ecc_layout(struct brcmnand_host *host)
 {
 	struct brcmnand_cfg *p = &host->hwcfg;
-	struct mtd_info *mtd = nand_to_mtd(&host->chip);
+	struct mtd_info *mtd = nandchip_to_mtd(&host->chip);
 	struct nand_ecc_ctrl *ecc = &host->chip.ecc;
 	unsigned int ecc_level = p->ecc_level;
 	int sas = p->spare_area_size << p->sector_size_1k;
@@ -1046,7 +1046,7 @@  static int brcmstb_choose_ecc_layout(struct brcmnand_host *host)
 
 static void brcmnand_wp(struct mtd_info *mtd, int wp)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	struct brcmnand_host *host = nand_get_controller_data(chip);
 	struct brcmnand_controller *ctrl = host->ctrl;
 
@@ -1239,7 +1239,7 @@  static void brcmnand_cmd_ctrl(struct mtd_info *mtd, int dat,
 
 static int brcmnand_waitfunc(struct mtd_info *mtd, struct nand_chip *this)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	struct brcmnand_host *host = nand_get_controller_data(chip);
 	struct brcmnand_controller *ctrl = host->ctrl;
 	unsigned long timeo = msecs_to_jiffies(100);
@@ -1274,7 +1274,7 @@  static int brcmnand_low_level_op(struct brcmnand_host *host,
 				 enum brcmnand_llop_type type, u32 data,
 				 bool last_op)
 {
-	struct mtd_info *mtd = nand_to_mtd(&host->chip);
+	struct mtd_info *mtd = nandchip_to_mtd(&host->chip);
 	struct nand_chip *chip = &host->chip;
 	struct brcmnand_controller *ctrl = host->ctrl;
 	u32 tmp;
@@ -1313,7 +1313,7 @@  static int brcmnand_low_level_op(struct brcmnand_host *host,
 static void brcmnand_cmdfunc(struct mtd_info *mtd, unsigned command,
 			     int column, int page_addr)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	struct brcmnand_host *host = nand_get_controller_data(chip);
 	struct brcmnand_controller *ctrl = host->ctrl;
 	u64 addr = (u64)page_addr << chip->page_shift;
@@ -1419,7 +1419,7 @@  static void brcmnand_cmdfunc(struct mtd_info *mtd, unsigned command,
 
 static uint8_t brcmnand_read_byte(struct mtd_info *mtd)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	struct brcmnand_host *host = nand_get_controller_data(chip);
 	struct brcmnand_controller *ctrl = host->ctrl;
 	uint8_t ret = 0;
@@ -1486,7 +1486,7 @@  static void brcmnand_write_buf(struct mtd_info *mtd, const uint8_t *buf,
 				   int len)
 {
 	int i;
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	struct brcmnand_host *host = nand_get_controller_data(chip);
 
 	switch (host->last_cmd) {
@@ -2083,7 +2083,7 @@  static inline int get_blk_adr_bytes(u64 size, u32 writesize)
 
 static int brcmnand_setup_dev(struct brcmnand_host *host)
 {
-	struct mtd_info *mtd = nand_to_mtd(&host->chip);
+	struct mtd_info *mtd = nandchip_to_mtd(&host->chip);
 	struct nand_chip *chip = &host->chip;
 	struct brcmnand_controller *ctrl = host->ctrl;
 	struct brcmnand_cfg *cfg = &host->hwcfg;
@@ -2223,7 +2223,7 @@  static int brcmnand_init_cs(struct brcmnand_host *host, struct device_node *dn)
 		return -ENXIO;
 	}
 
-	mtd = nand_to_mtd(&host->chip);
+	mtd = nandchip_to_mtd(&host->chip);
 	chip = &host->chip;
 
 	nand_set_flash_node(chip, dn);
@@ -2369,7 +2369,7 @@  static int brcmnand_resume(struct device *dev)
 
 	list_for_each_entry(host, &ctrl->host_list, node) {
 		struct nand_chip *chip = &host->chip;
-		struct mtd_info *mtd = nand_to_mtd(chip);
+		struct mtd_info *mtd = nandchip_to_mtd(chip);
 
 		brcmnand_save_restore_cs_config(host, 1);
 
@@ -2601,7 +2601,7 @@  int brcmnand_remove(struct platform_device *pdev)
 	struct brcmnand_host *host;
 
 	list_for_each_entry(host, &ctrl->host_list, node)
-		nand_release(nand_to_mtd(&host->chip));
+		nand_release(nandchip_to_mtd(&host->chip));
 
 	clk_disable_unprepare(ctrl->clk);
 
diff --git a/drivers/mtd/nand/raw/cafe_nand.c b/drivers/mtd/nand/raw/cafe_nand.c
index 0541c64..7b4bf88 100644
--- a/drivers/mtd/nand/raw/cafe_nand.c
+++ b/drivers/mtd/nand/raw/cafe_nand.c
@@ -101,7 +101,7 @@  struct cafe_priv {
 
 static int cafe_device_ready(struct mtd_info *mtd)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	struct cafe_priv *cafe = nand_get_controller_data(chip);
 	int result = !!(cafe_readl(cafe, NAND_STATUS) & 0x40000000);
 	uint32_t irqs = cafe_readl(cafe, NAND_IRQ);
@@ -118,7 +118,7 @@  static int cafe_device_ready(struct mtd_info *mtd)
 
 static void cafe_write_buf(struct mtd_info *mtd, const uint8_t *buf, int len)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	struct cafe_priv *cafe = nand_get_controller_data(chip);
 
 	if (usedma)
@@ -134,7 +134,7 @@  static void cafe_write_buf(struct mtd_info *mtd, const uint8_t *buf, int len)
 
 static void cafe_read_buf(struct mtd_info *mtd, uint8_t *buf, int len)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	struct cafe_priv *cafe = nand_get_controller_data(chip);
 
 	if (usedma)
@@ -149,7 +149,7 @@  static void cafe_read_buf(struct mtd_info *mtd, uint8_t *buf, int len)
 
 static uint8_t cafe_read_byte(struct mtd_info *mtd)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	struct cafe_priv *cafe = nand_get_controller_data(chip);
 	uint8_t d;
 
@@ -162,7 +162,7 @@  static uint8_t cafe_read_byte(struct mtd_info *mtd)
 static void cafe_nand_cmdfunc(struct mtd_info *mtd, unsigned command,
 			      int column, int page_addr)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	struct cafe_priv *cafe = nand_get_controller_data(chip);
 	int adrbytes = 0;
 	uint32_t ctl1;
@@ -318,7 +318,7 @@  static void cafe_nand_cmdfunc(struct mtd_info *mtd, unsigned command,
 
 static void cafe_select_chip(struct mtd_info *mtd, int chipnr)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	struct cafe_priv *cafe = nand_get_controller_data(chip);
 
 	cafe_dev_dbg(&cafe->pdev->dev, "select_chip %d\n", chipnr);
@@ -334,7 +334,7 @@  static void cafe_select_chip(struct mtd_info *mtd, int chipnr)
 static irqreturn_t cafe_nand_interrupt(int irq, void *id)
 {
 	struct mtd_info *mtd = id;
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	struct cafe_priv *cafe = nand_get_controller_data(chip);
 	uint32_t irqs = cafe_readl(cafe, NAND_IRQ);
 	cafe_writel(cafe, irqs & ~0x90000000, NAND_IRQ);
@@ -462,7 +462,7 @@  static int cafe_nand_read_page(struct mtd_info *mtd, struct nand_chip *chip,
 static int cafe_ooblayout_ecc(struct mtd_info *mtd, int section,
 			      struct mtd_oob_region *oobregion)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 
 	if (section)
 		return -ERANGE;
@@ -476,7 +476,7 @@  static int cafe_ooblayout_ecc(struct mtd_info *mtd, int section,
 static int cafe_ooblayout_free(struct mtd_info *mtd, int section,
 			       struct mtd_oob_region *oobregion)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 
 	if (section)
 		return -ERANGE;
@@ -630,7 +630,7 @@  static int cafe_nand_probe(struct pci_dev *pdev,
 	if (!cafe)
 		return  -ENOMEM;
 
-	mtd = nand_to_mtd(&cafe->nand);
+	mtd = nandchip_to_mtd(&cafe->nand);
 	mtd->dev.parent = &pdev->dev;
 	nand_set_controller_data(&cafe->nand, cafe);
 
@@ -818,7 +818,7 @@  static int cafe_nand_probe(struct pci_dev *pdev,
 static void cafe_nand_remove(struct pci_dev *pdev)
 {
 	struct mtd_info *mtd = pci_get_drvdata(pdev);
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	struct cafe_priv *cafe = nand_get_controller_data(chip);
 
 	/* Disable NAND IRQ in global IRQ mask register */
@@ -846,7 +846,7 @@  static int cafe_nand_resume(struct pci_dev *pdev)
 {
 	uint32_t ctrl;
 	struct mtd_info *mtd = pci_get_drvdata(pdev);
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	struct cafe_priv *cafe = nand_get_controller_data(chip);
 
        /* Start off by resetting the NAND controller completely */
diff --git a/drivers/mtd/nand/raw/cmx270_nand.c b/drivers/mtd/nand/raw/cmx270_nand.c
index 1fc435f..b85ccab 100644
--- a/drivers/mtd/nand/raw/cmx270_nand.c
+++ b/drivers/mtd/nand/raw/cmx270_nand.c
@@ -53,7 +53,7 @@ 
 
 static u_char cmx270_read_byte(struct mtd_info *mtd)
 {
-	struct nand_chip *this = mtd_to_nand(mtd);
+	struct nand_chip *this = mtd_to_nandchip(mtd);
 
 	return (readl(this->IO_ADDR_R) >> 16);
 }
@@ -61,7 +61,7 @@  static u_char cmx270_read_byte(struct mtd_info *mtd)
 static void cmx270_write_buf(struct mtd_info *mtd, const u_char *buf, int len)
 {
 	int i;
-	struct nand_chip *this = mtd_to_nand(mtd);
+	struct nand_chip *this = mtd_to_nandchip(mtd);
 
 	for (i=0; i<len; i++)
 		writel((*buf++ << 16), this->IO_ADDR_W);
@@ -70,7 +70,7 @@  static void cmx270_write_buf(struct mtd_info *mtd, const u_char *buf, int len)
 static void cmx270_read_buf(struct mtd_info *mtd, u_char *buf, int len)
 {
 	int i;
-	struct nand_chip *this = mtd_to_nand(mtd);
+	struct nand_chip *this = mtd_to_nandchip(mtd);
 
 	for (i=0; i<len; i++)
 		*buf++ = readl(this->IO_ADDR_R) >> 16;
@@ -94,7 +94,7 @@  static void nand_cs_off(void)
 static void cmx270_hwcontrol(struct mtd_info *mtd, int dat,
 			     unsigned int ctrl)
 {
-	struct nand_chip *this = mtd_to_nand(mtd);
+	struct nand_chip *this = mtd_to_nandchip(mtd);
 	unsigned int nandaddr = (unsigned int)this->IO_ADDR_W;
 
 	dsb();
@@ -173,7 +173,7 @@  static int __init cmx270_init(void)
 		goto err_ioremap;
 	}
 
-	cmx270_nand_mtd = nand_to_mtd(this);
+	cmx270_nand_mtd = nandchip_to_mtd(this);
 
 	/* Link the private data with the MTD structure */
 	cmx270_nand_mtd->owner = THIS_MODULE;
@@ -237,7 +237,7 @@  static void __exit cmx270_cleanup(void)
 
 	iounmap(cmx270_nand_io);
 
-	kfree(mtd_to_nand(cmx270_nand_mtd));
+	kfree(mtd_to_nandchip(cmx270_nand_mtd));
 }
 module_exit(cmx270_cleanup);
 
diff --git a/drivers/mtd/nand/raw/cs553x_nand.c b/drivers/mtd/nand/raw/cs553x_nand.c
index d488775..63149e2 100644
--- a/drivers/mtd/nand/raw/cs553x_nand.c
+++ b/drivers/mtd/nand/raw/cs553x_nand.c
@@ -97,7 +97,7 @@ 
 
 static void cs553x_read_buf(struct mtd_info *mtd, u_char *buf, int len)
 {
-	struct nand_chip *this = mtd_to_nand(mtd);
+	struct nand_chip *this = mtd_to_nandchip(mtd);
 
 	while (unlikely(len > 0x800)) {
 		memcpy_fromio(buf, this->IO_ADDR_R, 0x800);
@@ -109,7 +109,7 @@  static void cs553x_read_buf(struct mtd_info *mtd, u_char *buf, int len)
 
 static void cs553x_write_buf(struct mtd_info *mtd, const u_char *buf, int len)
 {
-	struct nand_chip *this = mtd_to_nand(mtd);
+	struct nand_chip *this = mtd_to_nandchip(mtd);
 
 	while (unlikely(len > 0x800)) {
 		memcpy_toio(this->IO_ADDR_R, buf, 0x800);
@@ -121,13 +121,13 @@  static void cs553x_write_buf(struct mtd_info *mtd, const u_char *buf, int len)
 
 static unsigned char cs553x_read_byte(struct mtd_info *mtd)
 {
-	struct nand_chip *this = mtd_to_nand(mtd);
+	struct nand_chip *this = mtd_to_nandchip(mtd);
 	return readb(this->IO_ADDR_R);
 }
 
 static void cs553x_write_byte(struct mtd_info *mtd, u_char byte)
 {
-	struct nand_chip *this = mtd_to_nand(mtd);
+	struct nand_chip *this = mtd_to_nandchip(mtd);
 	int i = 100000;
 
 	while (i && readb(this->IO_ADDR_R + MM_NAND_STS) & CS_NAND_CTLR_BUSY) {
@@ -140,7 +140,7 @@  static void cs553x_write_byte(struct mtd_info *mtd, u_char byte)
 static void cs553x_hwcontrol(struct mtd_info *mtd, int cmd,
 			     unsigned int ctrl)
 {
-	struct nand_chip *this = mtd_to_nand(mtd);
+	struct nand_chip *this = mtd_to_nandchip(mtd);
 	void __iomem *mmio_base = this->IO_ADDR_R;
 	if (ctrl & NAND_CTRL_CHANGE) {
 		unsigned char ctl = (ctrl & ~NAND_CTRL_CHANGE ) ^ 0x01;
@@ -152,7 +152,7 @@  static void cs553x_hwcontrol(struct mtd_info *mtd, int cmd,
 
 static int cs553x_device_ready(struct mtd_info *mtd)
 {
-	struct nand_chip *this = mtd_to_nand(mtd);
+	struct nand_chip *this = mtd_to_nandchip(mtd);
 	void __iomem *mmio_base = this->IO_ADDR_R;
 	unsigned char foo = readb(mmio_base + MM_NAND_STS);
 
@@ -161,7 +161,7 @@  static int cs553x_device_ready(struct mtd_info *mtd)
 
 static void cs_enable_hwecc(struct mtd_info *mtd, int mode)
 {
-	struct nand_chip *this = mtd_to_nand(mtd);
+	struct nand_chip *this = mtd_to_nandchip(mtd);
 	void __iomem *mmio_base = this->IO_ADDR_R;
 
 	writeb(0x07, mmio_base + MM_NAND_ECC_CTL);
@@ -170,7 +170,7 @@  static void cs_enable_hwecc(struct mtd_info *mtd, int mode)
 static int cs_calculate_ecc(struct mtd_info *mtd, const u_char *dat, u_char *ecc_code)
 {
 	uint32_t ecc;
-	struct nand_chip *this = mtd_to_nand(mtd);
+	struct nand_chip *this = mtd_to_nandchip(mtd);
 	void __iomem *mmio_base = this->IO_ADDR_R;
 
 	ecc = readl(mmio_base + MM_NAND_STS);
@@ -203,7 +203,7 @@  static int __init cs553x_init_one(int cs, int mmio, unsigned long adr)
 		goto out;
 	}
 
-	new_mtd = nand_to_mtd(this);
+	new_mtd = nandchip_to_mtd(this);
 
 	/* Link the private data with the MTD structure */
 	new_mtd->owner = THIS_MODULE;
@@ -334,7 +334,7 @@  static void __exit cs553x_cleanup(void)
 		if (!mtd)
 			continue;
 
-		this = mtd_to_nand(mtd);
+		this = mtd_to_nandchip(mtd);
 		mmio_base = this->IO_ADDR_R;
 
 		/* Release resources, unregister device */
diff --git a/drivers/mtd/nand/raw/davinci_nand.c b/drivers/mtd/nand/raw/davinci_nand.c
index ccc8c43..73b696a 100644
--- a/drivers/mtd/nand/raw/davinci_nand.c
+++ b/drivers/mtd/nand/raw/davinci_nand.c
@@ -79,7 +79,7 @@  struct davinci_nand_info {
 
 static inline struct davinci_nand_info *to_davinci_nand(struct mtd_info *mtd)
 {
-	return container_of(mtd_to_nand(mtd), struct davinci_nand_info, chip);
+	return container_of(mtd_to_nandchip(mtd), struct davinci_nand_info, chip);
 }
 
 static inline unsigned int davinci_nand_readl(struct davinci_nand_info *info,
@@ -105,7 +105,7 @@  static void nand_davinci_hwcontrol(struct mtd_info *mtd, int cmd,
 {
 	struct davinci_nand_info	*info = to_davinci_nand(mtd);
 	uint32_t			addr = info->current_cs;
-	struct nand_chip		*nand = mtd_to_nand(mtd);
+	struct nand_chip		*nand = mtd_to_nandchip(mtd);
 
 	/* Did the control lines change? */
 	if (ctrl & NAND_CTRL_CHANGE) {
@@ -191,7 +191,7 @@  static int nand_davinci_calculate_1bit(struct mtd_info *mtd,
 static int nand_davinci_correct_1bit(struct mtd_info *mtd, u_char *dat,
 				     u_char *read_ecc, u_char *calc_ecc)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	uint32_t eccNand = read_ecc[0] | (read_ecc[1] << 8) |
 					  (read_ecc[2] << 16);
 	uint32_t eccCalc = calc_ecc[0] | (calc_ecc[1] << 8) |
@@ -441,7 +441,7 @@  static int nand_davinci_correct_4bit(struct mtd_info *mtd,
  */
 static void nand_davinci_read_buf(struct mtd_info *mtd, uint8_t *buf, int len)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 
 	if ((0x03 & ((unsigned)buf)) == 0 && (0x03 & len) == 0)
 		ioread32_rep(chip->IO_ADDR_R, buf, len >> 2);
@@ -454,7 +454,7 @@  static void nand_davinci_read_buf(struct mtd_info *mtd, uint8_t *buf, int len)
 static void nand_davinci_write_buf(struct mtd_info *mtd,
 		const uint8_t *buf, int len)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 
 	if ((0x03 & ((unsigned)buf)) == 0 && (0x03 & len) == 0)
 		iowrite32_rep(chip->IO_ADDR_R, buf, len >> 2);
@@ -665,7 +665,7 @@  static int nand_davinci_probe(struct platform_device *pdev)
 	info->base		= base;
 	info->vaddr		= vaddr;
 
-	mtd			= nand_to_mtd(&info->chip);
+	mtd			= nandchip_to_mtd(&info->chip);
 	mtd->dev.parent		= &pdev->dev;
 	nand_set_flash_node(&info->chip, pdev->dev.of_node);
 
@@ -854,7 +854,7 @@  static int nand_davinci_remove(struct platform_device *pdev)
 		ecc4_busy = false;
 	spin_unlock_irq(&davinci_nand_lock);
 
-	nand_release(nand_to_mtd(&info->chip));
+	nand_release(nandchip_to_mtd(&info->chip));
 
 	clk_disable_unprepare(info->clk);
 
diff --git a/drivers/mtd/nand/raw/denali.c b/drivers/mtd/nand/raw/denali.c
index 16634df..2e19fb3 100644
--- a/drivers/mtd/nand/raw/denali.c
+++ b/drivers/mtd/nand/raw/denali.c
@@ -74,7 +74,7 @@ 
  */
 static inline struct denali_nand_info *mtd_to_denali(struct mtd_info *mtd)
 {
-	return container_of(mtd_to_nand(mtd), struct denali_nand_info, nand);
+	return container_of(mtd_to_nandchip(mtd), struct denali_nand_info, nand);
 }
 
 /*
@@ -855,7 +855,7 @@  static int denali_hw_ecc_fixup(struct mtd_info *mtd,
 			       struct denali_nand_info *denali,
 			       unsigned long *uncor_ecc_flags)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	int bank = denali->flash_bank;
 	uint32_t ecc_cor;
 	unsigned int max_bitflips;
@@ -1357,7 +1357,7 @@  static int denali_ooblayout_ecc(struct mtd_info *mtd, int section,
 				struct mtd_oob_region *oobregion)
 {
 	struct denali_nand_info *denali = mtd_to_denali(mtd);
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 
 	if (section)
 		return -ERANGE;
@@ -1372,7 +1372,7 @@  static int denali_ooblayout_free(struct mtd_info *mtd, int section,
 				 struct mtd_oob_region *oobregion)
 {
 	struct denali_nand_info *denali = mtd_to_denali(mtd);
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 
 	if (section)
 		return -ERANGE;
@@ -1436,7 +1436,7 @@  static void denali_drv_init(struct denali_nand_info *denali)
 static int denali_multidev_fixup(struct denali_nand_info *denali)
 {
 	struct nand_chip *chip = &denali->nand;
-	struct mtd_info *mtd = nand_to_mtd(chip);
+	struct mtd_info *mtd = nandchip_to_mtd(chip);
 
 	/*
 	 * Support for multi device:
@@ -1487,7 +1487,7 @@  static int denali_multidev_fixup(struct denali_nand_info *denali)
 int denali_init(struct denali_nand_info *denali)
 {
 	struct nand_chip *chip = &denali->nand;
-	struct mtd_info *mtd = nand_to_mtd(chip);
+	struct mtd_info *mtd = nandchip_to_mtd(&denali->nand);
 	int ret;
 
 	if (denali->platform == INTEL_CE4100) {
@@ -1647,7 +1647,7 @@  int denali_init(struct denali_nand_info *denali)
 /* driver exit point */
 void denali_remove(struct denali_nand_info *denali)
 {
-	struct mtd_info *mtd = nand_to_mtd(&denali->nand);
+	struct mtd_info *mtd = nandchip_to_mtd(&denali->nand);
 	/*
 	 * Pre-compute DMA buffer size to avoid any problems in case
 	 * nand_release() ever changes in a way that mtd->writesize and
diff --git a/drivers/mtd/nand/raw/diskonchip.c b/drivers/mtd/nand/raw/diskonchip.c
index c3aa53c..5c2dc9b 100644
--- a/drivers/mtd/nand/raw/diskonchip.c
+++ b/drivers/mtd/nand/raw/diskonchip.c
@@ -295,7 +295,7 @@  static inline int DoC_WaitReady(struct doc_priv *doc)
 
 static void doc2000_write_byte(struct mtd_info *mtd, u_char datum)
 {
-	struct nand_chip *this = mtd_to_nand(mtd);
+	struct nand_chip *this = mtd_to_nandchip(mtd);
 	struct doc_priv *doc = nand_get_controller_data(this);
 	void __iomem *docptr = doc->virtadr;
 
@@ -307,7 +307,7 @@  static void doc2000_write_byte(struct mtd_info *mtd, u_char datum)
 
 static u_char doc2000_read_byte(struct mtd_info *mtd)
 {
-	struct nand_chip *this = mtd_to_nand(mtd);
+	struct nand_chip *this = mtd_to_nandchip(mtd);
 	struct doc_priv *doc = nand_get_controller_data(this);
 	void __iomem *docptr = doc->virtadr;
 	u_char ret;
@@ -322,7 +322,7 @@  static u_char doc2000_read_byte(struct mtd_info *mtd)
 
 static void doc2000_writebuf(struct mtd_info *mtd, const u_char *buf, int len)
 {
-	struct nand_chip *this = mtd_to_nand(mtd);
+	struct nand_chip *this = mtd_to_nandchip(mtd);
 	struct doc_priv *doc = nand_get_controller_data(this);
 	void __iomem *docptr = doc->virtadr;
 	int i;
@@ -339,7 +339,7 @@  static void doc2000_writebuf(struct mtd_info *mtd, const u_char *buf, int len)
 
 static void doc2000_readbuf(struct mtd_info *mtd, u_char *buf, int len)
 {
-	struct nand_chip *this = mtd_to_nand(mtd);
+	struct nand_chip *this = mtd_to_nandchip(mtd);
 	struct doc_priv *doc = nand_get_controller_data(this);
 	void __iomem *docptr = doc->virtadr;
 	int i;
@@ -354,7 +354,7 @@  static void doc2000_readbuf(struct mtd_info *mtd, u_char *buf, int len)
 
 static void doc2000_readbuf_dword(struct mtd_info *mtd, u_char *buf, int len)
 {
-	struct nand_chip *this = mtd_to_nand(mtd);
+	struct nand_chip *this = mtd_to_nandchip(mtd);
 	struct doc_priv *doc = nand_get_controller_data(this);
 	void __iomem *docptr = doc->virtadr;
 	int i;
@@ -375,7 +375,7 @@  static void doc2000_readbuf_dword(struct mtd_info *mtd, u_char *buf, int len)
 
 static uint16_t __init doc200x_ident_chip(struct mtd_info *mtd, int nr)
 {
-	struct nand_chip *this = mtd_to_nand(mtd);
+	struct nand_chip *this = mtd_to_nandchip(mtd);
 	struct doc_priv *doc = nand_get_controller_data(this);
 	uint16_t ret;
 
@@ -421,7 +421,7 @@  static uint16_t __init doc200x_ident_chip(struct mtd_info *mtd, int nr)
 
 static void __init doc2000_count_chips(struct mtd_info *mtd)
 {
-	struct nand_chip *this = mtd_to_nand(mtd);
+	struct nand_chip *this = mtd_to_nandchip(mtd);
 	struct doc_priv *doc = nand_get_controller_data(this);
 	uint16_t mfrid;
 	int i;
@@ -457,7 +457,7 @@  static int doc200x_wait(struct mtd_info *mtd, struct nand_chip *this)
 
 static void doc2001_write_byte(struct mtd_info *mtd, u_char datum)
 {
-	struct nand_chip *this = mtd_to_nand(mtd);
+	struct nand_chip *this = mtd_to_nandchip(mtd);
 	struct doc_priv *doc = nand_get_controller_data(this);
 	void __iomem *docptr = doc->virtadr;
 
@@ -468,7 +468,7 @@  static void doc2001_write_byte(struct mtd_info *mtd, u_char datum)
 
 static u_char doc2001_read_byte(struct mtd_info *mtd)
 {
-	struct nand_chip *this = mtd_to_nand(mtd);
+	struct nand_chip *this = mtd_to_nandchip(mtd);
 	struct doc_priv *doc = nand_get_controller_data(this);
 	void __iomem *docptr = doc->virtadr;
 
@@ -482,7 +482,7 @@  static u_char doc2001_read_byte(struct mtd_info *mtd)
 
 static void doc2001_writebuf(struct mtd_info *mtd, const u_char *buf, int len)
 {
-	struct nand_chip *this = mtd_to_nand(mtd);
+	struct nand_chip *this = mtd_to_nandchip(mtd);
 	struct doc_priv *doc = nand_get_controller_data(this);
 	void __iomem *docptr = doc->virtadr;
 	int i;
@@ -495,7 +495,7 @@  static void doc2001_writebuf(struct mtd_info *mtd, const u_char *buf, int len)
 
 static void doc2001_readbuf(struct mtd_info *mtd, u_char *buf, int len)
 {
-	struct nand_chip *this = mtd_to_nand(mtd);
+	struct nand_chip *this = mtd_to_nandchip(mtd);
 	struct doc_priv *doc = nand_get_controller_data(this);
 	void __iomem *docptr = doc->virtadr;
 	int i;
@@ -512,7 +512,7 @@  static void doc2001_readbuf(struct mtd_info *mtd, u_char *buf, int len)
 
 static u_char doc2001plus_read_byte(struct mtd_info *mtd)
 {
-	struct nand_chip *this = mtd_to_nand(mtd);
+	struct nand_chip *this = mtd_to_nandchip(mtd);
 	struct doc_priv *doc = nand_get_controller_data(this);
 	void __iomem *docptr = doc->virtadr;
 	u_char ret;
@@ -527,7 +527,7 @@  static u_char doc2001plus_read_byte(struct mtd_info *mtd)
 
 static void doc2001plus_writebuf(struct mtd_info *mtd, const u_char *buf, int len)
 {
-	struct nand_chip *this = mtd_to_nand(mtd);
+	struct nand_chip *this = mtd_to_nandchip(mtd);
 	struct doc_priv *doc = nand_get_controller_data(this);
 	void __iomem *docptr = doc->virtadr;
 	int i;
@@ -545,7 +545,7 @@  static void doc2001plus_writebuf(struct mtd_info *mtd, const u_char *buf, int le
 
 static void doc2001plus_readbuf(struct mtd_info *mtd, u_char *buf, int len)
 {
-	struct nand_chip *this = mtd_to_nand(mtd);
+	struct nand_chip *this = mtd_to_nandchip(mtd);
 	struct doc_priv *doc = nand_get_controller_data(this);
 	void __iomem *docptr = doc->virtadr;
 	int i;
@@ -576,7 +576,7 @@  static void doc2001plus_readbuf(struct mtd_info *mtd, u_char *buf, int len)
 
 static void doc2001plus_select_chip(struct mtd_info *mtd, int chip)
 {
-	struct nand_chip *this = mtd_to_nand(mtd);
+	struct nand_chip *this = mtd_to_nandchip(mtd);
 	struct doc_priv *doc = nand_get_controller_data(this);
 	void __iomem *docptr = doc->virtadr;
 	int floor = 0;
@@ -603,7 +603,7 @@  static void doc2001plus_select_chip(struct mtd_info *mtd, int chip)
 
 static void doc200x_select_chip(struct mtd_info *mtd, int chip)
 {
-	struct nand_chip *this = mtd_to_nand(mtd);
+	struct nand_chip *this = mtd_to_nandchip(mtd);
 	struct doc_priv *doc = nand_get_controller_data(this);
 	void __iomem *docptr = doc->virtadr;
 	int floor = 0;
@@ -634,7 +634,7 @@  static void doc200x_select_chip(struct mtd_info *mtd, int chip)
 static void doc200x_hwcontrol(struct mtd_info *mtd, int cmd,
 			      unsigned int ctrl)
 {
-	struct nand_chip *this = mtd_to_nand(mtd);
+	struct nand_chip *this = mtd_to_nandchip(mtd);
 	struct doc_priv *doc = nand_get_controller_data(this);
 	void __iomem *docptr = doc->virtadr;
 
@@ -657,7 +657,7 @@  static void doc200x_hwcontrol(struct mtd_info *mtd, int cmd,
 
 static void doc2001plus_command(struct mtd_info *mtd, unsigned command, int column, int page_addr)
 {
-	struct nand_chip *this = mtd_to_nand(mtd);
+	struct nand_chip *this = mtd_to_nandchip(mtd);
 	struct doc_priv *doc = nand_get_controller_data(this);
 	void __iomem *docptr = doc->virtadr;
 
@@ -763,7 +763,7 @@  static void doc2001plus_command(struct mtd_info *mtd, unsigned command, int colu
 
 static int doc200x_dev_ready(struct mtd_info *mtd)
 {
-	struct nand_chip *this = mtd_to_nand(mtd);
+	struct nand_chip *this = mtd_to_nandchip(mtd);
 	struct doc_priv *doc = nand_get_controller_data(this);
 	void __iomem *docptr = doc->virtadr;
 
@@ -803,7 +803,7 @@  static int doc200x_block_bad(struct mtd_info *mtd, loff_t ofs)
 
 static void doc200x_enable_hwecc(struct mtd_info *mtd, int mode)
 {
-	struct nand_chip *this = mtd_to_nand(mtd);
+	struct nand_chip *this = mtd_to_nandchip(mtd);
 	struct doc_priv *doc = nand_get_controller_data(this);
 	void __iomem *docptr = doc->virtadr;
 
@@ -822,7 +822,7 @@  static void doc200x_enable_hwecc(struct mtd_info *mtd, int mode)
 
 static void doc2001plus_enable_hwecc(struct mtd_info *mtd, int mode)
 {
-	struct nand_chip *this = mtd_to_nand(mtd);
+	struct nand_chip *this = mtd_to_nandchip(mtd);
 	struct doc_priv *doc = nand_get_controller_data(this);
 	void __iomem *docptr = doc->virtadr;
 
@@ -842,7 +842,7 @@  static void doc2001plus_enable_hwecc(struct mtd_info *mtd, int mode)
 /* This code is only called on write */
 static int doc200x_calculate_ecc(struct mtd_info *mtd, const u_char *dat, unsigned char *ecc_code)
 {
-	struct nand_chip *this = mtd_to_nand(mtd);
+	struct nand_chip *this = mtd_to_nandchip(mtd);
 	struct doc_priv *doc = nand_get_controller_data(this);
 	void __iomem *docptr = doc->virtadr;
 	int i;
@@ -903,7 +903,7 @@  static int doc200x_correct_data(struct mtd_info *mtd, u_char *dat,
 				u_char *read_ecc, u_char *isnull)
 {
 	int i, ret = 0;
-	struct nand_chip *this = mtd_to_nand(mtd);
+	struct nand_chip *this = mtd_to_nandchip(mtd);
 	struct doc_priv *doc = nand_get_controller_data(this);
 	void __iomem *docptr = doc->virtadr;
 	uint8_t calc_ecc[6];
@@ -1004,7 +1004,7 @@  static int doc200x_ooblayout_free(struct mtd_info *mtd, int section,
    mh1_page in the DOC private structure. */
 static int __init find_media_headers(struct mtd_info *mtd, u_char *buf, const char *id, int findmirror)
 {
-	struct nand_chip *this = mtd_to_nand(mtd);
+	struct nand_chip *this = mtd_to_nandchip(mtd);
 	struct doc_priv *doc = nand_get_controller_data(this);
 	unsigned offs;
 	int ret;
@@ -1047,7 +1047,7 @@  static int __init find_media_headers(struct mtd_info *mtd, u_char *buf, const ch
 
 static inline int __init nftl_partscan(struct mtd_info *mtd, struct mtd_partition *parts)
 {
-	struct nand_chip *this = mtd_to_nand(mtd);
+	struct nand_chip *this = mtd_to_nandchip(mtd);
 	struct doc_priv *doc = nand_get_controller_data(this);
 	int ret = 0;
 	u_char *buf;
@@ -1149,7 +1149,7 @@  static inline int __init nftl_partscan(struct mtd_info *mtd, struct mtd_partitio
 /* This is a stripped-down copy of the code in inftlmount.c */
 static inline int __init inftl_partscan(struct mtd_info *mtd, struct mtd_partition *parts)
 {
-	struct nand_chip *this = mtd_to_nand(mtd);
+	struct nand_chip *this = mtd_to_nandchip(mtd);
 	struct doc_priv *doc = nand_get_controller_data(this);
 	int ret = 0;
 	u_char *buf;
@@ -1269,7 +1269,7 @@  static inline int __init inftl_partscan(struct mtd_info *mtd, struct mtd_partiti
 static int __init nftl_scan_bbt(struct mtd_info *mtd)
 {
 	int ret, numparts;
-	struct nand_chip *this = mtd_to_nand(mtd);
+	struct nand_chip *this = mtd_to_nandchip(mtd);
 	struct doc_priv *doc = nand_get_controller_data(this);
 	struct mtd_partition parts[2];
 
@@ -1304,7 +1304,7 @@  static int __init nftl_scan_bbt(struct mtd_info *mtd)
 static int __init inftl_scan_bbt(struct mtd_info *mtd)
 {
 	int ret, numparts;
-	struct nand_chip *this = mtd_to_nand(mtd);
+	struct nand_chip *this = mtd_to_nandchip(mtd);
 	struct doc_priv *doc = nand_get_controller_data(this);
 	struct mtd_partition parts[5];
 
@@ -1357,7 +1357,7 @@  static int __init inftl_scan_bbt(struct mtd_info *mtd)
 
 static inline int __init doc2000_init(struct mtd_info *mtd)
 {
-	struct nand_chip *this = mtd_to_nand(mtd);
+	struct nand_chip *this = mtd_to_nandchip(mtd);
 	struct doc_priv *doc = nand_get_controller_data(this);
 
 	this->read_byte = doc2000_read_byte;
@@ -1373,7 +1373,7 @@  static inline int __init doc2000_init(struct mtd_info *mtd)
 
 static inline int __init doc2001_init(struct mtd_info *mtd)
 {
-	struct nand_chip *this = mtd_to_nand(mtd);
+	struct nand_chip *this = mtd_to_nandchip(mtd);
 	struct doc_priv *doc = nand_get_controller_data(this);
 
 	this->read_byte = doc2001_read_byte;
@@ -1403,7 +1403,7 @@  static inline int __init doc2001_init(struct mtd_info *mtd)
 
 static inline int __init doc2001plus_init(struct mtd_info *mtd)
 {
-	struct nand_chip *this = mtd_to_nand(mtd);
+	struct nand_chip *this = mtd_to_nandchip(mtd);
 	struct doc_priv *doc = nand_get_controller_data(this);
 
 	this->read_byte = doc2001plus_read_byte;
@@ -1520,7 +1520,7 @@  static int __init doc_probe(unsigned long physadr)
 	for (mtd = doclist; mtd; mtd = doc->nextdoc) {
 		unsigned char oldval;
 		unsigned char newval;
-		nand = mtd_to_nand(mtd);
+		nand = mtd_to_nandchip(mtd);
 		doc = nand_get_controller_data(nand);
 		/* Use the alias resolution register to determine if this is
 		   in fact the same DOC aliased to a new address.  If writes
@@ -1561,7 +1561,7 @@  static int __init doc_probe(unsigned long physadr)
 		goto fail;
 	}
 
-	mtd			= nand_to_mtd(nand);
+	mtd			= nandchip_to_mtd(nand);
 	doc			= (struct doc_priv *) (nand + 1);
 	nand->bbt_td		= (struct nand_bbt_descr *) (doc + 1);
 	nand->bbt_md		= nand->bbt_td + 1;
@@ -1640,7 +1640,7 @@  static void release_nanddoc(void)
 	struct doc_priv *doc;
 
 	for (mtd = doclist; mtd; mtd = nextmtd) {
-		nand = mtd_to_nand(mtd);
+		nand = mtd_to_nandchip(mtd);
 		doc = nand_get_controller_data(nand);
 
 		nextmtd = doc->nextdoc;
diff --git a/drivers/mtd/nand/raw/docg4.c b/drivers/mtd/nand/raw/docg4.c
index e038130..c4a4089 100644
--- a/drivers/mtd/nand/raw/docg4.c
+++ b/drivers/mtd/nand/raw/docg4.c
@@ -264,7 +264,7 @@  static inline void write_nop(void __iomem *docptr)
 static void docg4_read_buf(struct mtd_info *mtd, uint8_t *buf, int len)
 {
 	int i;
-	struct nand_chip *nand = mtd_to_nand(mtd);
+	struct nand_chip *nand = mtd_to_nandchip(mtd);
 	uint16_t *p = (uint16_t *) buf;
 	len >>= 1;
 
@@ -275,7 +275,7 @@  static void docg4_read_buf(struct mtd_info *mtd, uint8_t *buf, int len)
 static void docg4_write_buf16(struct mtd_info *mtd, const uint8_t *buf, int len)
 {
 	int i;
-	struct nand_chip *nand = mtd_to_nand(mtd);
+	struct nand_chip *nand = mtd_to_nandchip(mtd);
 	uint16_t *p = (uint16_t *) buf;
 	len >>= 1;
 
@@ -340,7 +340,7 @@  static void docg4_select_chip(struct mtd_info *mtd, int chip)
 	 * Select among multiple cascaded chips ("floors").  Multiple floors are
 	 * not yet supported, so the only valid non-negative value is 0.
 	 */
-	struct nand_chip *nand = mtd_to_nand(mtd);
+	struct nand_chip *nand = mtd_to_nandchip(mtd);
 	struct docg4_priv *doc = nand_get_controller_data(nand);
 	void __iomem *docptr = doc->virtadr;
 
@@ -359,7 +359,7 @@  static void reset(struct mtd_info *mtd)
 {
 	/* full device reset */
 
-	struct nand_chip *nand = mtd_to_nand(mtd);
+	struct nand_chip *nand = mtd_to_nandchip(mtd);
 	struct docg4_priv *doc = nand_get_controller_data(nand);
 	void __iomem *docptr = doc->virtadr;
 
@@ -397,7 +397,7 @@  static int correct_data(struct mtd_info *mtd, uint8_t *buf, int page)
 	 * Up to four bitflips can be corrected.
 	 */
 
-	struct nand_chip *nand = mtd_to_nand(mtd);
+	struct nand_chip *nand = mtd_to_nandchip(mtd);
 	struct docg4_priv *doc = nand_get_controller_data(nand);
 	void __iomem *docptr = doc->virtadr;
 	int i, numerrs, errpos[4];
@@ -486,7 +486,7 @@  static int correct_data(struct mtd_info *mtd, uint8_t *buf, int page)
 
 static uint8_t docg4_read_byte(struct mtd_info *mtd)
 {
-	struct nand_chip *nand = mtd_to_nand(mtd);
+	struct nand_chip *nand = mtd_to_nandchip(mtd);
 	struct docg4_priv *doc = nand_get_controller_data(nand);
 
 	dev_dbg(doc->dev, "%s\n", __func__);
@@ -567,7 +567,7 @@  static int pageprog(struct mtd_info *mtd)
 	 * internal buffer out to the flash array, or some such.
 	 */
 
-	struct nand_chip *nand = mtd_to_nand(mtd);
+	struct nand_chip *nand = mtd_to_nandchip(mtd);
 	struct docg4_priv *doc = nand_get_controller_data(nand);
 	void __iomem *docptr = doc->virtadr;
 	int retval = 0;
@@ -604,7 +604,7 @@  static void sequence_reset(struct mtd_info *mtd)
 {
 	/* common starting sequence for all operations */
 
-	struct nand_chip *nand = mtd_to_nand(mtd);
+	struct nand_chip *nand = mtd_to_nandchip(mtd);
 	struct docg4_priv *doc = nand_get_controller_data(nand);
 	void __iomem *docptr = doc->virtadr;
 
@@ -621,7 +621,7 @@  static void read_page_prologue(struct mtd_info *mtd, uint32_t docg4_addr)
 {
 	/* first step in reading a page */
 
-	struct nand_chip *nand = mtd_to_nand(mtd);
+	struct nand_chip *nand = mtd_to_nandchip(mtd);
 	struct docg4_priv *doc = nand_get_controller_data(nand);
 	void __iomem *docptr = doc->virtadr;
 
@@ -648,7 +648,7 @@  static void write_page_prologue(struct mtd_info *mtd, uint32_t docg4_addr)
 {
 	/* first step in writing a page */
 
-	struct nand_chip *nand = mtd_to_nand(mtd);
+	struct nand_chip *nand = mtd_to_nandchip(mtd);
 	struct docg4_priv *doc = nand_get_controller_data(nand);
 	void __iomem *docptr = doc->virtadr;
 
@@ -713,7 +713,7 @@  static void docg4_command(struct mtd_info *mtd, unsigned command, int column,
 {
 	/* handle standard nand commands */
 
-	struct nand_chip *nand = mtd_to_nand(mtd);
+	struct nand_chip *nand = mtd_to_nandchip(mtd);
 	struct docg4_priv *doc = nand_get_controller_data(nand);
 	uint32_t g4_addr = mtd_to_docg4_address(page_addr, column);
 
@@ -896,7 +896,7 @@  static int docg4_read_oob(struct mtd_info *mtd, struct nand_chip *nand,
 
 static int docg4_erase_block(struct mtd_info *mtd, int page)
 {
-	struct nand_chip *nand = mtd_to_nand(mtd);
+	struct nand_chip *nand = mtd_to_nandchip(mtd);
 	struct docg4_priv *doc = nand_get_controller_data(nand);
 	void __iomem *docptr = doc->virtadr;
 	uint16_t g4_page;
@@ -1038,7 +1038,7 @@  static int __init read_factory_bbt(struct mtd_info *mtd)
 	 * update the memory-based bbt accordingly.
 	 */
 
-	struct nand_chip *nand = mtd_to_nand(mtd);
+	struct nand_chip *nand = mtd_to_nandchip(mtd);
 	struct docg4_priv *doc = nand_get_controller_data(nand);
 	uint32_t g4_addr = mtd_to_docg4_address(DOCG4_FACTORY_BBT_PAGE, 0);
 	uint8_t *buf;
@@ -1111,7 +1111,7 @@  static int docg4_block_markbad(struct mtd_info *mtd, loff_t ofs)
 
 	int ret, i;
 	uint8_t *buf;
-	struct nand_chip *nand = mtd_to_nand(mtd);
+	struct nand_chip *nand = mtd_to_nandchip(mtd);
 	struct docg4_priv *doc = nand_get_controller_data(nand);
 	struct nand_bbt_descr *bbtd = nand->badblock_pattern;
 	int page = (int)(ofs >> nand->page_shift);
@@ -1224,7 +1224,7 @@  static void __init init_mtd_structs(struct mtd_info *mtd)
 	 * things as well, such as call nand_set_defaults().
 	 */
 
-	struct nand_chip *nand = mtd_to_nand(mtd);
+	struct nand_chip *nand = mtd_to_nandchip(mtd);
 	struct docg4_priv *doc = nand_get_controller_data(nand);
 
 	mtd->size = DOCG4_CHIP_SIZE;
@@ -1282,7 +1282,7 @@  static void __init init_mtd_structs(struct mtd_info *mtd)
 
 static int __init read_id_reg(struct mtd_info *mtd)
 {
-	struct nand_chip *nand = mtd_to_nand(mtd);
+	struct nand_chip *nand = mtd_to_nandchip(mtd);
 	struct docg4_priv *doc = nand_get_controller_data(nand);
 	void __iomem *docptr = doc->virtadr;
 	uint16_t id1, id2;
@@ -1333,7 +1333,7 @@  static int __init probe_docg4(struct platform_device *pdev)
 		goto fail_unmap;
 	}
 
-	mtd = nand_to_mtd(nand);
+	mtd = nandchip_to_mtd(nand);
 	doc = (struct docg4_priv *) (nand + 1);
 	nand_set_controller_data(nand, doc);
 	mtd->dev.parent = &pdev->dev;
@@ -1389,7 +1389,7 @@  static int __exit cleanup_docg4(struct platform_device *pdev)
 	struct docg4_priv *doc = platform_get_drvdata(pdev);
 	nand_release(doc->mtd);
 	free_bch(doc->bch);
-	kfree(mtd_to_nand(doc->mtd));
+	kfree(mtd_to_nandchip(doc->mtd));
 	iounmap(doc->virtadr);
 	return 0;
 }
diff --git a/drivers/mtd/nand/raw/fsl_elbc_nand.c b/drivers/mtd/nand/raw/fsl_elbc_nand.c
index 7d8453e..f0ea638 100644
--- a/drivers/mtd/nand/raw/fsl_elbc_nand.c
+++ b/drivers/mtd/nand/raw/fsl_elbc_nand.c
@@ -82,7 +82,7 @@  struct fsl_elbc_fcm_ctrl {
 static int fsl_elbc_ooblayout_ecc(struct mtd_info *mtd, int section,
 				  struct mtd_oob_region *oobregion)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	struct fsl_elbc_mtd *priv = nand_get_controller_data(chip);
 
 	if (section >= chip->ecc.steps)
@@ -100,7 +100,7 @@  static int fsl_elbc_ooblayout_ecc(struct mtd_info *mtd, int section,
 static int fsl_elbc_ooblayout_free(struct mtd_info *mtd, int section,
 				   struct mtd_oob_region *oobregion)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	struct fsl_elbc_mtd *priv = nand_get_controller_data(chip);
 
 	if (section > chip->ecc.steps)
@@ -164,7 +164,7 @@  static int fsl_elbc_ooblayout_free(struct mtd_info *mtd, int section,
  */
 static void set_addr(struct mtd_info *mtd, int column, int page_addr, int oob)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	struct fsl_elbc_mtd *priv = nand_get_controller_data(chip);
 	struct fsl_lbc_ctrl *ctrl = priv->ctrl;
 	struct fsl_lbc_regs __iomem *lbc = ctrl->regs;
@@ -215,7 +215,7 @@  static void set_addr(struct mtd_info *mtd, int column, int page_addr, int oob)
  */
 static int fsl_elbc_run_command(struct mtd_info *mtd)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	struct fsl_elbc_mtd *priv = nand_get_controller_data(chip);
 	struct fsl_lbc_ctrl *ctrl = priv->ctrl;
 	struct fsl_elbc_fcm_ctrl *elbc_fcm_ctrl = ctrl->nand;
@@ -320,7 +320,7 @@  static void fsl_elbc_do_read(struct nand_chip *chip, int oob)
 static void fsl_elbc_cmdfunc(struct mtd_info *mtd, unsigned int command,
                              int column, int page_addr)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	struct fsl_elbc_mtd *priv = nand_get_controller_data(chip);
 	struct fsl_lbc_ctrl *ctrl = priv->ctrl;
 	struct fsl_elbc_fcm_ctrl *elbc_fcm_ctrl = ctrl->nand;
@@ -545,7 +545,7 @@  static void fsl_elbc_select_chip(struct mtd_info *mtd, int chip)
  */
 static void fsl_elbc_write_buf(struct mtd_info *mtd, const u8 *buf, int len)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	struct fsl_elbc_mtd *priv = nand_get_controller_data(chip);
 	struct fsl_elbc_fcm_ctrl *elbc_fcm_ctrl = priv->ctrl->nand;
 	unsigned int bufsize = mtd->writesize + mtd->oobsize;
@@ -583,7 +583,7 @@  static void fsl_elbc_write_buf(struct mtd_info *mtd, const u8 *buf, int len)
  */
 static u8 fsl_elbc_read_byte(struct mtd_info *mtd)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	struct fsl_elbc_mtd *priv = nand_get_controller_data(chip);
 	struct fsl_elbc_fcm_ctrl *elbc_fcm_ctrl = priv->ctrl->nand;
 
@@ -600,7 +600,7 @@  static u8 fsl_elbc_read_byte(struct mtd_info *mtd)
  */
 static void fsl_elbc_read_buf(struct mtd_info *mtd, u8 *buf, int len)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	struct fsl_elbc_mtd *priv = nand_get_controller_data(chip);
 	struct fsl_elbc_fcm_ctrl *elbc_fcm_ctrl = priv->ctrl->nand;
 	int avail;
@@ -639,7 +639,7 @@  static int fsl_elbc_wait(struct mtd_info *mtd, struct nand_chip *chip)
 
 static int fsl_elbc_chip_init_tail(struct mtd_info *mtd)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	struct fsl_elbc_mtd *priv = nand_get_controller_data(chip);
 	struct fsl_lbc_ctrl *ctrl = priv->ctrl;
 	struct fsl_lbc_regs __iomem *lbc = ctrl->regs;
@@ -754,7 +754,7 @@  static int fsl_elbc_chip_init(struct fsl_elbc_mtd *priv)
 	struct fsl_lbc_regs __iomem *lbc = ctrl->regs;
 	struct fsl_elbc_fcm_ctrl *elbc_fcm_ctrl = ctrl->nand;
 	struct nand_chip *chip = &priv->chip;
-	struct mtd_info *mtd = nand_to_mtd(chip);
+	struct mtd_info *mtd = nandchip_to_mtd(chip);
 
 	dev_dbg(priv->dev, "eLBC Set Information for bank %d\n", priv->bank);
 
@@ -809,7 +809,7 @@  static int fsl_elbc_chip_init(struct fsl_elbc_mtd *priv)
 static int fsl_elbc_chip_remove(struct fsl_elbc_mtd *priv)
 {
 	struct fsl_elbc_fcm_ctrl *elbc_fcm_ctrl = priv->ctrl->nand;
-	struct mtd_info *mtd = nand_to_mtd(&priv->chip);
+	struct mtd_info *mtd = nandchip_to_mtd(&priv->chip);
 
 	nand_release(mtd);
 
@@ -899,9 +899,9 @@  static int fsl_elbc_nand_probe(struct platform_device *pdev)
 		goto err;
 	}
 
-	mtd = nand_to_mtd(&priv->chip);
+	mtd = nandchip_to_mtd(&priv->chip);
 	mtd->name = kasprintf(GFP_KERNEL, "%llx.flash", (u64)res.start);
-	if (!nand_to_mtd(&priv->chip)->name) {
+	if (!nandchip_to_mtd(&priv->chip)->name) {
 		ret = -ENOMEM;
 		goto err;
 	}
diff --git a/drivers/mtd/nand/raw/fsl_ifc_nand.c b/drivers/mtd/nand/raw/fsl_ifc_nand.c
index b9b8534..09ae754 100644
--- a/drivers/mtd/nand/raw/fsl_ifc_nand.c
+++ b/drivers/mtd/nand/raw/fsl_ifc_nand.c
@@ -96,7 +96,7 @@  struct fsl_ifc_nand_ctrl {
 static int fsl_ifc_ooblayout_ecc(struct mtd_info *mtd, int section,
 				 struct mtd_oob_region *oobregion)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 
 	if (section)
 		return -ERANGE;
@@ -110,7 +110,7 @@  static int fsl_ifc_ooblayout_ecc(struct mtd_info *mtd, int section,
 static int fsl_ifc_ooblayout_free(struct mtd_info *mtd, int section,
 				  struct mtd_oob_region *oobregion)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 
 	if (section > 1)
 		return -ERANGE;
@@ -150,7 +150,7 @@  static int fsl_ifc_ooblayout_free(struct mtd_info *mtd, int section,
  */
 static void set_addr(struct mtd_info *mtd, int column, int page_addr, int oob)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	struct fsl_ifc_mtd *priv = nand_get_controller_data(chip);
 	struct fsl_ifc_ctrl *ctrl = priv->ctrl;
 	struct fsl_ifc_runtime __iomem *ifc = ctrl->rregs;
@@ -173,7 +173,7 @@  static void set_addr(struct mtd_info *mtd, int column, int page_addr, int oob)
 
 static int is_blank(struct mtd_info *mtd, unsigned int bufnum)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	struct fsl_ifc_mtd *priv = nand_get_controller_data(chip);
 	u8 __iomem *addr = priv->vbase + bufnum * (mtd->writesize * 2);
 	u32 __iomem *mainarea = (u32 __iomem *)addr;
@@ -216,7 +216,7 @@  static int check_read_ecc(struct mtd_info *mtd, struct fsl_ifc_ctrl *ctrl,
  */
 static void fsl_ifc_run_command(struct mtd_info *mtd)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	struct fsl_ifc_mtd *priv = nand_get_controller_data(chip);
 	struct fsl_ifc_ctrl *ctrl = priv->ctrl;
 	struct fsl_ifc_nand_ctrl *nctrl = ifc_nand_ctrl;
@@ -339,7 +339,7 @@  static void fsl_ifc_do_read(struct nand_chip *chip,
 /* cmdfunc send commands to the IFC NAND Machine */
 static void fsl_ifc_cmdfunc(struct mtd_info *mtd, unsigned int command,
 			     int column, int page_addr) {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	struct fsl_ifc_mtd *priv = nand_get_controller_data(chip);
 	struct fsl_ifc_ctrl *ctrl = priv->ctrl;
 	struct fsl_ifc_runtime __iomem *ifc = ctrl->rregs;
@@ -554,7 +554,7 @@  static void fsl_ifc_select_chip(struct mtd_info *mtd, int chip)
  */
 static void fsl_ifc_write_buf(struct mtd_info *mtd, const u8 *buf, int len)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	struct fsl_ifc_mtd *priv = nand_get_controller_data(chip);
 	unsigned int bufsize = mtd->writesize + mtd->oobsize;
 
@@ -580,7 +580,7 @@  static void fsl_ifc_write_buf(struct mtd_info *mtd, const u8 *buf, int len)
  */
 static uint8_t fsl_ifc_read_byte(struct mtd_info *mtd)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	struct fsl_ifc_mtd *priv = nand_get_controller_data(chip);
 	unsigned int offset;
 
@@ -603,7 +603,7 @@  static uint8_t fsl_ifc_read_byte(struct mtd_info *mtd)
  */
 static uint8_t fsl_ifc_read_byte16(struct mtd_info *mtd)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	struct fsl_ifc_mtd *priv = nand_get_controller_data(chip);
 	uint16_t data;
 
@@ -626,7 +626,7 @@  static uint8_t fsl_ifc_read_byte16(struct mtd_info *mtd)
  */
 static void fsl_ifc_read_buf(struct mtd_info *mtd, u8 *buf, int len)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	struct fsl_ifc_mtd *priv = nand_get_controller_data(chip);
 	int avail;
 
@@ -712,7 +712,7 @@  static int fsl_ifc_write_page(struct mtd_info *mtd, struct nand_chip *chip,
 
 static int fsl_ifc_chip_init_tail(struct mtd_info *mtd)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	struct fsl_ifc_mtd *priv = nand_get_controller_data(chip);
 
 	dev_dbg(priv->dev, "%s: nand->numchips = %d\n", __func__,
@@ -811,7 +811,7 @@  static int fsl_ifc_chip_init(struct fsl_ifc_mtd *priv)
 	struct fsl_ifc_global __iomem *ifc_global = ctrl->gregs;
 	struct fsl_ifc_runtime __iomem *ifc_runtime = ctrl->rregs;
 	struct nand_chip *chip = &priv->chip;
-	struct mtd_info *mtd = nand_to_mtd(&priv->chip);
+	struct mtd_info *mtd = nandchip_to_mtd(&priv->chip);
 	u32 csor;
 
 	/* Fill in fsl_ifc_mtd structure */
@@ -912,7 +912,7 @@  static int fsl_ifc_chip_init(struct fsl_ifc_mtd *priv)
 
 static int fsl_ifc_chip_remove(struct fsl_ifc_mtd *priv)
 {
-	struct mtd_info *mtd = nand_to_mtd(&priv->chip);
+	struct mtd_info *mtd = nandchip_to_mtd(&priv->chip);
 
 	nand_release(mtd);
 
@@ -1024,7 +1024,7 @@  static int fsl_ifc_nand_probe(struct platform_device *dev)
 		  IFC_NAND_EVTER_INTR_WPERIR_EN,
 		  &ifc->ifc_nand.nand_evter_intr_en);
 
-	mtd = nand_to_mtd(&priv->chip);
+	mtd = nandchip_to_mtd(&priv->chip);
 	mtd->name = kasprintf(GFP_KERNEL, "%llx.flash", (u64)res.start);
 	if (!mtd->name) {
 		ret = -ENOMEM;
diff --git a/drivers/mtd/nand/raw/fsl_upm.c b/drivers/mtd/nand/raw/fsl_upm.c
index a88e2cf..9715cdd 100644
--- a/drivers/mtd/nand/raw/fsl_upm.c
+++ b/drivers/mtd/nand/raw/fsl_upm.c
@@ -48,7 +48,7 @@  struct fsl_upm_nand {
 
 static inline struct fsl_upm_nand *to_fsl_upm_nand(struct mtd_info *mtdinfo)
 {
-	return container_of(mtd_to_nand(mtdinfo), struct fsl_upm_nand,
+	return container_of(mtd_to_nandchip(mtdinfo), struct fsl_upm_nand,
 			    chip);
 }
 
@@ -66,7 +66,7 @@  static int fun_chip_ready(struct mtd_info *mtd)
 static void fun_wait_rnb(struct fsl_upm_nand *fun)
 {
 	if (fun->rnb_gpio[fun->mchip_number] >= 0) {
-		struct mtd_info *mtd = nand_to_mtd(&fun->chip);
+		struct mtd_info *mtd = nandchip_to_mtd(&fun->chip);
 		int cnt = 1000000;
 
 		while (--cnt && !fun_chip_ready(mtd))
@@ -80,7 +80,7 @@  static void fun_wait_rnb(struct fsl_upm_nand *fun)
 
 static void fun_cmd_ctrl(struct mtd_info *mtd, int cmd, unsigned int ctrl)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	struct fsl_upm_nand *fun = to_fsl_upm_nand(mtd);
 	u32 mar;
 
@@ -110,7 +110,7 @@  static void fun_cmd_ctrl(struct mtd_info *mtd, int cmd, unsigned int ctrl)
 
 static void fun_select_chip(struct mtd_info *mtd, int mchip_nr)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	struct fsl_upm_nand *fun = to_fsl_upm_nand(mtd);
 
 	if (mchip_nr == -1) {
@@ -158,7 +158,7 @@  static int fun_chip_init(struct fsl_upm_nand *fun,
 			 const struct device_node *upm_np,
 			 const struct resource *io_res)
 {
-	struct mtd_info *mtd = nand_to_mtd(&fun->chip);
+	struct mtd_info *mtd = nandchip_to_mtd(&fun->chip);
 	int ret;
 	struct device_node *flash_np;
 
@@ -323,7 +323,7 @@  static int fun_probe(struct platform_device *ofdev)
 static int fun_remove(struct platform_device *ofdev)
 {
 	struct fsl_upm_nand *fun = dev_get_drvdata(&ofdev->dev);
-	struct mtd_info *mtd = nand_to_mtd(&fun->chip);
+	struct mtd_info *mtd = nandchip_to_mtd(&fun->chip);
 	int i;
 
 	nand_release(mtd);
diff --git a/drivers/mtd/nand/raw/fsmc_nand.c b/drivers/mtd/nand/raw/fsmc_nand.c
index bab7064..3597b54 100644
--- a/drivers/mtd/nand/raw/fsmc_nand.c
+++ b/drivers/mtd/nand/raw/fsmc_nand.c
@@ -171,7 +171,7 @@  struct fsmc_nand_data {
 static int fsmc_ecc1_ooblayout_ecc(struct mtd_info *mtd, int section,
 				   struct mtd_oob_region *oobregion)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 
 	if (section >= chip->ecc.steps)
 		return -ERANGE;
@@ -185,7 +185,7 @@  static int fsmc_ecc1_ooblayout_ecc(struct mtd_info *mtd, int section,
 static int fsmc_ecc1_ooblayout_free(struct mtd_info *mtd, int section,
 				    struct mtd_oob_region *oobregion)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 
 	if (section >= chip->ecc.steps)
 		return -ERANGE;
@@ -214,7 +214,7 @@  static int fsmc_ecc1_ooblayout_free(struct mtd_info *mtd, int section,
 static int fsmc_ecc4_ooblayout_ecc(struct mtd_info *mtd, int section,
 				   struct mtd_oob_region *oobregion)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 
 	if (section >= chip->ecc.steps)
 		return -ERANGE;
@@ -232,7 +232,7 @@  static int fsmc_ecc4_ooblayout_ecc(struct mtd_info *mtd, int section,
 static int fsmc_ecc4_ooblayout_free(struct mtd_info *mtd, int section,
 				    struct mtd_oob_region *oobregion)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 
 	if (section >= chip->ecc.steps)
 		return -ERANGE;
@@ -254,7 +254,7 @@  static int fsmc_ecc4_ooblayout_free(struct mtd_info *mtd, int section,
 
 static inline struct fsmc_nand_data *mtd_to_fsmc(struct mtd_info *mtd)
 {
-	return container_of(mtd_to_nand(mtd), struct fsmc_nand_data, nand);
+	return container_of(mtd_to_nandchip(mtd), struct fsmc_nand_data, nand);
 }
 
 /*
@@ -263,7 +263,7 @@  static inline struct fsmc_nand_data *mtd_to_fsmc(struct mtd_info *mtd)
  */
 static void fsmc_cmd_ctrl(struct mtd_info *mtd, int cmd, unsigned int ctrl)
 {
-	struct nand_chip *this = mtd_to_nand(mtd);
+	struct nand_chip *this = mtd_to_nandchip(mtd);
 	struct fsmc_nand_data *host = mtd_to_fsmc(mtd);
 	void __iomem *regs = host->regs_va;
 	unsigned int bank = host->bank;
@@ -392,7 +392,7 @@  static int fsmc_setup_data_interface(struct mtd_info *mtd,
 				     const struct nand_data_interface *conf,
 				     bool check_only)
 {
-	struct nand_chip *nand = mtd_to_nand(mtd);
+	struct nand_chip *nand = mtd_to_nandchip(mtd);
 	struct fsmc_nand_data *host = nand_get_controller_data(nand);
 	struct fsmc_nand_timings tims;
 	const struct nand_sdr_timings *sdrt;
@@ -600,7 +600,7 @@  static int dma_xfer(struct fsmc_nand_data *host, void *buffer, int len,
 static void fsmc_write_buf(struct mtd_info *mtd, const uint8_t *buf, int len)
 {
 	int i;
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 
 	if (IS_ALIGNED((uint32_t)buf, sizeof(uint32_t)) &&
 			IS_ALIGNED(len, sizeof(uint32_t))) {
@@ -623,7 +623,7 @@  static void fsmc_write_buf(struct mtd_info *mtd, const uint8_t *buf, int len)
 static void fsmc_read_buf(struct mtd_info *mtd, uint8_t *buf, int len)
 {
 	int i;
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 
 	if (IS_ALIGNED((uint32_t)buf, sizeof(uint32_t)) &&
 			IS_ALIGNED(len, sizeof(uint32_t))) {
@@ -754,7 +754,7 @@  static int fsmc_read_page_hwecc(struct mtd_info *mtd, struct nand_chip *chip,
 static int fsmc_bch8_correct_data(struct mtd_info *mtd, uint8_t *dat,
 			     uint8_t *read_ecc, uint8_t *calc_ecc)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	struct fsmc_nand_data *host = mtd_to_fsmc(mtd);
 	void __iomem *regs = host->regs_va;
 	unsigned int bank = host->bank;
@@ -957,7 +957,7 @@  static int __init fsmc_nand_probe(struct platform_device *pdev)
 		init_completion(&host->dma_access_complete);
 
 	/* Link all private pointers */
-	mtd = nand_to_mtd(&host->nand);
+	mtd = nandchip_to_mtd(&host->nand);
 	nand_set_controller_data(nand, host);
 	nand_set_flash_node(nand, pdev->dev.of_node);
 
@@ -1119,7 +1119,7 @@  static int fsmc_nand_remove(struct platform_device *pdev)
 	struct fsmc_nand_data *host = platform_get_drvdata(pdev);
 
 	if (host) {
-		nand_release(nand_to_mtd(&host->nand));
+		nand_release(nandchip_to_mtd(&host->nand));
 
 		if (host->mode == USE_DMA_ACCESS) {
 			dma_release_channel(host->write_dma_chan);
diff --git a/drivers/mtd/nand/raw/gpio.c b/drivers/mtd/nand/raw/gpio.c
index fd36489..8d5a9ca 100644
--- a/drivers/mtd/nand/raw/gpio.c
+++ b/drivers/mtd/nand/raw/gpio.c
@@ -41,7 +41,7 @@  struct gpiomtd {
 
 static inline struct gpiomtd *gpio_nand_getpriv(struct mtd_info *mtd)
 {
-	return container_of(mtd_to_nand(mtd), struct gpiomtd, nand_chip);
+	return container_of(mtd_to_nandchip(mtd), struct gpiomtd, nand_chip);
 }
 
 
@@ -199,7 +199,7 @@  static int gpio_nand_remove(struct platform_device *pdev)
 {
 	struct gpiomtd *gpiomtd = platform_get_drvdata(pdev);
 
-	nand_release(nand_to_mtd(&gpiomtd->nand_chip));
+	nand_release(nandchip_to_mtd(&gpiomtd->nand_chip));
 
 	if (gpio_is_valid(gpiomtd->plat.gpio_nwp))
 		gpio_set_value(gpiomtd->plat.gpio_nwp, 0);
@@ -284,7 +284,7 @@  static int gpio_nand_probe(struct platform_device *pdev)
 	chip->chip_delay	= gpiomtd->plat.chip_delay;
 	chip->cmd_ctrl		= gpio_nand_cmd_ctrl;
 
-	mtd			= nand_to_mtd(chip);
+	mtd			= nandchip_to_mtd(chip);
 	mtd->dev.parent		= &pdev->dev;
 
 	platform_set_drvdata(pdev, gpiomtd);
diff --git a/drivers/mtd/nand/raw/gpmi-nand/gpmi-lib.c b/drivers/mtd/nand/raw/gpmi-nand/gpmi-lib.c
index 141bd70..7217912 100644
--- a/drivers/mtd/nand/raw/gpmi-nand/gpmi-lib.c
+++ b/drivers/mtd/nand/raw/gpmi-nand/gpmi-lib.c
@@ -921,7 +921,7 @@  static int enable_edo_mode(struct gpmi_nand_data *this, int mode)
 {
 	struct resources  *r = &this->resources;
 	struct nand_chip *nand = &this->nand;
-	struct mtd_info	 *mtd = nand_to_mtd(nand);
+	struct mtd_info	 *mtd = nandchip_to_mtd(nand);
 	uint8_t *feature;
 	unsigned long rate;
 	int ret;
diff --git a/drivers/mtd/nand/raw/gpmi-nand/gpmi-nand.c b/drivers/mtd/nand/raw/gpmi-nand/gpmi-nand.c
index 50f8d4a..b736ea2 100644
--- a/drivers/mtd/nand/raw/gpmi-nand/gpmi-nand.c
+++ b/drivers/mtd/nand/raw/gpmi-nand/gpmi-nand.c
@@ -50,7 +50,7 @@ 
 static int gpmi_ooblayout_ecc(struct mtd_info *mtd, int section,
 			      struct mtd_oob_region *oobregion)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	struct gpmi_nand_data *this = nand_get_controller_data(chip);
 	struct bch_geometry *geo = &this->bch_geometry;
 
@@ -66,7 +66,7 @@  static int gpmi_ooblayout_ecc(struct mtd_info *mtd, int section,
 static int gpmi_ooblayout_free(struct mtd_info *mtd, int section,
 			       struct mtd_oob_region *oobregion)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	struct gpmi_nand_data *this = nand_get_controller_data(chip);
 	struct bch_geometry *geo = &this->bch_geometry;
 
@@ -169,7 +169,7 @@  static irqreturn_t bch_irq(int irq, void *cookie)
 static inline int get_ecc_strength(struct gpmi_nand_data *this)
 {
 	struct bch_geometry *geo = &this->bch_geometry;
-	struct mtd_info	*mtd = nand_to_mtd(&this->nand);
+	struct mtd_info	*mtd = nandchip_to_mtd(&this->nand);
 	int ecc_strength;
 
 	ecc_strength = ((mtd->oobsize - geo->metadata_size) * 8)
@@ -202,7 +202,7 @@  static int set_geometry_by_ecc_info(struct gpmi_nand_data *this)
 {
 	struct bch_geometry *geo = &this->bch_geometry;
 	struct nand_chip *chip = &this->nand;
-	struct mtd_info *mtd = nand_to_mtd(chip);
+	struct mtd_info *mtd = nandchip_to_mtd(chip);
 	unsigned int block_mark_bit_offset;
 
 	if (!(chip->ecc_strength_ds > 0 && chip->ecc_step_ds > 0))
@@ -312,7 +312,7 @@  static int set_geometry_by_ecc_info(struct gpmi_nand_data *this)
 static int legacy_set_geometry(struct gpmi_nand_data *this)
 {
 	struct bch_geometry *geo = &this->bch_geometry;
-	struct mtd_info *mtd = nand_to_mtd(&this->nand);
+	struct mtd_info *mtd = nandchip_to_mtd(&this->nand);
 	unsigned int metadata_size;
 	unsigned int status_size;
 	unsigned int block_mark_bit_offset;
@@ -842,7 +842,7 @@  static int gpmi_alloc_dma_buffer(struct gpmi_nand_data *this)
 {
 	struct bch_geometry *geo = &this->bch_geometry;
 	struct device *dev = this->dev;
-	struct mtd_info *mtd = nand_to_mtd(&this->nand);
+	struct mtd_info *mtd = nandchip_to_mtd(&this->nand);
 
 	/* [1] Allocate a command buffer. PAGE_SIZE is enough. */
 	this->cmd_buffer = kzalloc(PAGE_SIZE, GFP_DMA | GFP_KERNEL);
@@ -894,7 +894,7 @@  static int gpmi_alloc_dma_buffer(struct gpmi_nand_data *this)
 
 static void gpmi_cmd_ctrl(struct mtd_info *mtd, int data, unsigned int ctrl)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	struct gpmi_nand_data *this = nand_get_controller_data(chip);
 	int ret;
 
@@ -928,7 +928,7 @@  static void gpmi_cmd_ctrl(struct mtd_info *mtd, int data, unsigned int ctrl)
 
 static int gpmi_dev_ready(struct mtd_info *mtd)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	struct gpmi_nand_data *this = nand_get_controller_data(chip);
 
 	return gpmi_is_ready(this, this->current_chip);
@@ -936,7 +936,7 @@  static int gpmi_dev_ready(struct mtd_info *mtd)
 
 static void gpmi_select_chip(struct mtd_info *mtd, int chipnr)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	struct gpmi_nand_data *this = nand_get_controller_data(chip);
 
 	if ((this->current_chip < 0) && (chipnr >= 0))
@@ -949,7 +949,7 @@  static void gpmi_select_chip(struct mtd_info *mtd, int chipnr)
 
 static void gpmi_read_buf(struct mtd_info *mtd, uint8_t *buf, int len)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	struct gpmi_nand_data *this = nand_get_controller_data(chip);
 
 	dev_dbg(this->dev, "len is %d\n", len);
@@ -961,7 +961,7 @@  static void gpmi_read_buf(struct mtd_info *mtd, uint8_t *buf, int len)
 
 static void gpmi_write_buf(struct mtd_info *mtd, const uint8_t *buf, int len)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	struct gpmi_nand_data *this = nand_get_controller_data(chip);
 
 	dev_dbg(this->dev, "len is %d\n", len);
@@ -973,7 +973,7 @@  static void gpmi_write_buf(struct mtd_info *mtd, const uint8_t *buf, int len)
 
 static uint8_t gpmi_read_byte(struct mtd_info *mtd)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	struct gpmi_nand_data *this = nand_get_controller_data(chip);
 	uint8_t *buf = this->data_buffer_dma;
 
@@ -1645,7 +1645,7 @@  static int gpmi_ecc_write_oob_raw(struct mtd_info *mtd, struct nand_chip *chip,
 
 static int gpmi_block_markbad(struct mtd_info *mtd, loff_t ofs)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	struct gpmi_nand_data *this = nand_get_controller_data(chip);
 	int ret = 0;
 	uint8_t *block_mark;
@@ -1708,7 +1708,7 @@  static int mx23_check_transcription_stamp(struct gpmi_nand_data *this)
 	struct boot_rom_geometry *rom_geo = &this->rom_geometry;
 	struct device *dev = this->dev;
 	struct nand_chip *chip = &this->nand;
-	struct mtd_info *mtd = nand_to_mtd(chip);
+	struct mtd_info *mtd = nandchip_to_mtd(chip);
 	unsigned int search_area_size_in_strides;
 	unsigned int stride;
 	unsigned int page;
@@ -1763,7 +1763,7 @@  static int mx23_write_transcription_stamp(struct gpmi_nand_data *this)
 	struct device *dev = this->dev;
 	struct boot_rom_geometry *rom_geo = &this->rom_geometry;
 	struct nand_chip *chip = &this->nand;
-	struct mtd_info *mtd = nand_to_mtd(chip);
+	struct mtd_info *mtd = nandchip_to_mtd(chip);
 	unsigned int block_size_in_pages;
 	unsigned int search_area_size_in_strides;
 	unsigned int search_area_size_in_pages;
@@ -1842,7 +1842,7 @@  static int mx23_boot_init(struct gpmi_nand_data  *this)
 {
 	struct device *dev = this->dev;
 	struct nand_chip *chip = &this->nand;
-	struct mtd_info *mtd = nand_to_mtd(chip);
+	struct mtd_info *mtd = nandchip_to_mtd(chip);
 	unsigned int block_count;
 	unsigned int block;
 	int     chipnr;
@@ -1939,7 +1939,7 @@  static int gpmi_set_geometry(struct gpmi_nand_data *this)
 static int gpmi_init_last(struct gpmi_nand_data *this)
 {
 	struct nand_chip *chip = &this->nand;
-	struct mtd_info *mtd = nand_to_mtd(chip);
+	struct mtd_info *mtd = nandchip_to_mtd(chip);
 	struct nand_ecc_ctrl *ecc = &chip->ecc;
 	struct bch_geometry *bch_geo = &this->bch_geometry;
 	int ret;
@@ -1988,7 +1988,7 @@  static int gpmi_init_last(struct gpmi_nand_data *this)
 static int gpmi_nand_init(struct gpmi_nand_data *this)
 {
 	struct nand_chip *chip = &this->nand;
-	struct mtd_info  *mtd = nand_to_mtd(chip);
+	struct mtd_info  *mtd = nandchip_to_mtd(chip);
 	int ret;
 
 	/* init current chip */
@@ -2135,7 +2135,7 @@  static int gpmi_nand_remove(struct platform_device *pdev)
 {
 	struct gpmi_nand_data *this = platform_get_drvdata(pdev);
 
-	nand_release(nand_to_mtd(&this->nand));
+	nand_release(nandchip_to_mtd(&this->nand));
 	gpmi_free_dma_buffer(this);
 	release_resources(this);
 	return 0;
diff --git a/drivers/mtd/nand/raw/hisi504_nand.c b/drivers/mtd/nand/raw/hisi504_nand.c
index d09df18..86dd423 100644
--- a/drivers/mtd/nand/raw/hisi504_nand.c
+++ b/drivers/mtd/nand/raw/hisi504_nand.c
@@ -188,7 +188,7 @@  static void wait_controller_finished(struct hinfc_host *host)
 static void hisi_nfc_dma_transfer(struct hinfc_host *host, int todev)
 {
 	struct nand_chip *chip = &host->chip;
-	struct mtd_info	*mtd = nand_to_mtd(chip);
+	struct mtd_info	*mtd = nandchip_to_mtd(chip);
 	unsigned long val;
 	int ret;
 
@@ -260,7 +260,7 @@  static int hisi_nfc_send_cmd_pageprog(struct hinfc_host *host)
 
 static int hisi_nfc_send_cmd_readstart(struct hinfc_host *host)
 {
-	struct mtd_info	*mtd = nand_to_mtd(&host->chip);
+	struct mtd_info	*mtd = nandchip_to_mtd(&host->chip);
 
 	if ((host->addr_value[0] == host->cache_addr_value[0]) &&
 	    (host->addr_value[1] == host->cache_addr_value[1]))
@@ -355,7 +355,7 @@  static int hisi_nfc_send_cmd_reset(struct hinfc_host *host, int chipselect)
 
 static void hisi_nfc_select_chip(struct mtd_info *mtd, int chipselect)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	struct hinfc_host *host = nand_get_controller_data(chip);
 
 	if (chipselect < 0)
@@ -366,7 +366,7 @@  static void hisi_nfc_select_chip(struct mtd_info *mtd, int chipselect)
 
 static uint8_t hisi_nfc_read_byte(struct mtd_info *mtd)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	struct hinfc_host *host = nand_get_controller_data(chip);
 
 	if (host->command == NAND_CMD_STATUS)
@@ -382,7 +382,7 @@  static uint8_t hisi_nfc_read_byte(struct mtd_info *mtd)
 
 static u16 hisi_nfc_read_word(struct mtd_info *mtd)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	struct hinfc_host *host = nand_get_controller_data(chip);
 
 	host->offset += 2;
@@ -392,7 +392,7 @@  static u16 hisi_nfc_read_word(struct mtd_info *mtd)
 static void
 hisi_nfc_write_buf(struct mtd_info *mtd, const uint8_t *buf, int len)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	struct hinfc_host *host = nand_get_controller_data(chip);
 
 	memcpy(host->buffer + host->offset, buf, len);
@@ -401,7 +401,7 @@  static u16 hisi_nfc_read_word(struct mtd_info *mtd)
 
 static void hisi_nfc_read_buf(struct mtd_info *mtd, uint8_t *buf, int len)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	struct hinfc_host *host = nand_get_controller_data(chip);
 
 	memcpy(buf, host->buffer + host->offset, len);
@@ -410,7 +410,7 @@  static void hisi_nfc_read_buf(struct mtd_info *mtd, uint8_t *buf, int len)
 
 static void set_addr(struct mtd_info *mtd, int column, int page_addr)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	struct hinfc_host *host = nand_get_controller_data(chip);
 	unsigned int command = host->command;
 
@@ -446,7 +446,7 @@  static void set_addr(struct mtd_info *mtd, int column, int page_addr)
 static void hisi_nfc_cmdfunc(struct mtd_info *mtd, unsigned command, int column,
 		int page_addr)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	struct hinfc_host *host = nand_get_controller_data(chip);
 	int is_cache_invalid = 1;
 	unsigned int flag = 0;
@@ -660,7 +660,7 @@  static int hisi_nfc_ecc_probe(struct hinfc_host *host)
 	int size, strength, ecc_bits;
 	struct device *dev = host->dev;
 	struct nand_chip *chip = &host->chip;
-	struct mtd_info *mtd = nand_to_mtd(chip);
+	struct mtd_info *mtd = nandchip_to_mtd(chip);
 
 	size = chip->ecc.size;
 	strength = chip->ecc.strength;
@@ -728,7 +728,7 @@  static int hisi_nfc_probe(struct platform_device *pdev)
 
 	platform_set_drvdata(pdev, host);
 	chip = &host->chip;
-	mtd  = nand_to_mtd(chip);
+	mtd  = nandchip_to_mtd(chip);
 
 	irq = platform_get_irq(pdev, 0);
 	if (irq < 0) {
@@ -829,7 +829,7 @@  static int hisi_nfc_probe(struct platform_device *pdev)
 static int hisi_nfc_remove(struct platform_device *pdev)
 {
 	struct hinfc_host *host = platform_get_drvdata(pdev);
-	struct mtd_info *mtd = nand_to_mtd(&host->chip);
+	struct mtd_info *mtd = nandchip_to_mtd(&host->chip);
 
 	nand_release(mtd);
 
diff --git a/drivers/mtd/nand/raw/jz4740_nand.c b/drivers/mtd/nand/raw/jz4740_nand.c
index e813ec1..c2d514e 100644
--- a/drivers/mtd/nand/raw/jz4740_nand.c
+++ b/drivers/mtd/nand/raw/jz4740_nand.c
@@ -75,13 +75,13 @@  struct jz_nand {
 
 static inline struct jz_nand *mtd_to_jz_nand(struct mtd_info *mtd)
 {
-	return container_of(mtd_to_nand(mtd), struct jz_nand, chip);
+	return container_of(mtd_to_nandchip(mtd), struct jz_nand, chip);
 }
 
 static void jz_nand_select_chip(struct mtd_info *mtd, int chipnr)
 {
 	struct jz_nand *nand = mtd_to_jz_nand(mtd);
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	uint32_t ctrl;
 	int banknr;
 
@@ -103,7 +103,7 @@  static void jz_nand_select_chip(struct mtd_info *mtd, int chipnr)
 static void jz_nand_cmd_ctrl(struct mtd_info *mtd, int dat, unsigned int ctrl)
 {
 	struct jz_nand *nand = mtd_to_jz_nand(mtd);
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	uint32_t reg;
 	void __iomem *bank_base = nand->bank_base[nand->selected_bank];
 
@@ -315,7 +315,7 @@  static int jz_nand_detect_bank(struct platform_device *pdev,
 	char res_name[6];
 	uint32_t ctrl;
 	struct nand_chip *chip = &nand->chip;
-	struct mtd_info *mtd = nand_to_mtd(chip);
+	struct mtd_info *mtd = nandchip_to_mtd(chip);
 
 	/* Request GPIO port. */
 	gpio = JZ_GPIO_MEM_CS0 + bank - 1;
@@ -413,7 +413,7 @@  static int jz_nand_probe(struct platform_device *pdev)
 	}
 
 	chip		= &nand->chip;
-	mtd		= nand_to_mtd(chip);
+	mtd		= nandchip_to_mtd(chip);
 	mtd->dev.parent = &pdev->dev;
 	mtd->name	= "jz4740-nand";
 
@@ -520,7 +520,7 @@  static int jz_nand_remove(struct platform_device *pdev)
 	struct jz_nand *nand = platform_get_drvdata(pdev);
 	size_t i;
 
-	nand_release(nand_to_mtd(&nand->chip));
+	nand_release(nandchip_to_mtd(&nand->chip));
 
 	/* Deassert and disable all chips */
 	writel(0, nand->base + JZ_REG_NAND_CTRL);
diff --git a/drivers/mtd/nand/raw/jz4780_nand.c b/drivers/mtd/nand/raw/jz4780_nand.c
index e69f6ae..2b3096d 100644
--- a/drivers/mtd/nand/raw/jz4780_nand.c
+++ b/drivers/mtd/nand/raw/jz4780_nand.c
@@ -62,7 +62,7 @@  struct jz4780_nand_chip {
 
 static inline struct jz4780_nand_chip *to_jz4780_nand_chip(struct mtd_info *mtd)
 {
-	return container_of(mtd_to_nand(mtd), struct jz4780_nand_chip, chip);
+	return container_of(mtd_to_nandchip(mtd), struct jz4780_nand_chip, chip);
 }
 
 static inline struct jz4780_nand_controller *to_jz4780_nand_controller(struct nand_hw_control *ctrl)
@@ -160,7 +160,7 @@  static int jz4780_nand_ecc_correct(struct mtd_info *mtd, u8 *dat,
 static int jz4780_nand_init_ecc(struct jz4780_nand_chip *nand, struct device *dev)
 {
 	struct nand_chip *chip = &nand->chip;
-	struct mtd_info *mtd = nand_to_mtd(chip);
+	struct mtd_info *mtd = nandchip_to_mtd(chip);
 	struct jz4780_nand_controller *nfc = to_jz4780_nand_controller(chip->controller);
 	int eccbytes;
 
@@ -262,7 +262,7 @@  static int jz4780_nand_init_chip(struct platform_device *pdev,
 	}
 
 	chip = &nand->chip;
-	mtd = nand_to_mtd(chip);
+	mtd = nandchip_to_mtd(chip);
 	mtd->name = devm_kasprintf(dev, GFP_KERNEL, "%s.%d", dev_name(dev),
 				   cs->bank);
 	if (!mtd->name)
@@ -308,7 +308,7 @@  static void jz4780_nand_cleanup_chips(struct jz4780_nand_controller *nfc)
 
 	while (!list_empty(&nfc->chips)) {
 		chip = list_first_entry(&nfc->chips, struct jz4780_nand_chip, chip_list);
-		nand_release(nand_to_mtd(&chip->chip));
+		nand_release(nandchip_to_mtd(&chip->chip));
 		list_del(&chip->chip_list);
 	}
 }
diff --git a/drivers/mtd/nand/raw/lpc32xx_mlc.c b/drivers/mtd/nand/raw/lpc32xx_mlc.c
index bffa01c..b5e3787 100644
--- a/drivers/mtd/nand/raw/lpc32xx_mlc.c
+++ b/drivers/mtd/nand/raw/lpc32xx_mlc.c
@@ -141,7 +141,7 @@  struct lpc32xx_nand_cfg_mlc {
 static int lpc32xx_ooblayout_ecc(struct mtd_info *mtd, int section,
 				 struct mtd_oob_region *oobregion)
 {
-	struct nand_chip *nand_chip = mtd_to_nand(mtd);
+	struct nand_chip *nand_chip = mtd_to_nandchip(mtd);
 
 	if (section >= nand_chip->ecc.steps)
 		return -ERANGE;
@@ -155,7 +155,7 @@  static int lpc32xx_ooblayout_ecc(struct mtd_info *mtd, int section,
 static int lpc32xx_ooblayout_free(struct mtd_info *mtd, int section,
 				  struct mtd_oob_region *oobregion)
 {
-	struct nand_chip *nand_chip = mtd_to_nand(mtd);
+	struct nand_chip *nand_chip = mtd_to_nandchip(mtd);
 
 	if (section >= nand_chip->ecc.steps)
 		return -ERANGE;
@@ -288,7 +288,7 @@  static void lpc32xx_nand_setup(struct lpc32xx_nand_host *host)
 static void lpc32xx_nand_cmd_ctrl(struct mtd_info *mtd, int cmd,
 				  unsigned int ctrl)
 {
-	struct nand_chip *nand_chip = mtd_to_nand(mtd);
+	struct nand_chip *nand_chip = mtd_to_nandchip(mtd);
 	struct lpc32xx_nand_host *host = nand_get_controller_data(nand_chip);
 
 	if (cmd != NAND_CMD_NONE) {
@@ -304,7 +304,7 @@  static void lpc32xx_nand_cmd_ctrl(struct mtd_info *mtd, int cmd,
  */
 static int lpc32xx_nand_device_ready(struct mtd_info *mtd)
 {
-	struct nand_chip *nand_chip = mtd_to_nand(mtd);
+	struct nand_chip *nand_chip = mtd_to_nandchip(mtd);
 	struct lpc32xx_nand_host *host = nand_get_controller_data(nand_chip);
 
 	if ((readb(MLC_ISR(host->io_base)) &
@@ -402,7 +402,7 @@  static void lpc32xx_dma_complete_func(void *completion)
 static int lpc32xx_xmit_dma(struct mtd_info *mtd, void *mem, int len,
 			    enum dma_transfer_direction dir)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	struct lpc32xx_nand_host *host = nand_get_controller_data(chip);
 	struct dma_async_tx_descriptor *desc;
 	int flags = DMA_CTRL_ACK | DMA_PREP_INTERRUPT;
@@ -579,7 +579,7 @@  static void lpc32xx_ecc_enable(struct mtd_info *mtd, int mode)
 
 static int lpc32xx_dma_setup(struct lpc32xx_nand_host *host)
 {
-	struct mtd_info *mtd = nand_to_mtd(&host->nand_chip);
+	struct mtd_info *mtd = nandchip_to_mtd(&host->nand_chip);
 	dma_cap_mask_t mask;
 
 	if (!host->pdata || !host->pdata->dma_filter) {
@@ -674,7 +674,7 @@  static int lpc32xx_nand_probe(struct platform_device *pdev)
 	host->io_base_phy = rc->start;
 
 	nand_chip = &host->nand_chip;
-	mtd = nand_to_mtd(nand_chip);
+	mtd = nandchip_to_mtd(nand_chip);
 	if (pdev->dev.of_node)
 		host->ncfg = lpc32xx_parse_dt(&pdev->dev);
 	if (!host->ncfg) {
@@ -826,7 +826,7 @@  static int lpc32xx_nand_probe(struct platform_device *pdev)
 static int lpc32xx_nand_remove(struct platform_device *pdev)
 {
 	struct lpc32xx_nand_host *host = platform_get_drvdata(pdev);
-	struct mtd_info *mtd = nand_to_mtd(&host->nand_chip);
+	struct mtd_info *mtd = nandchip_to_mtd(&host->nand_chip);
 
 	nand_release(mtd);
 	free_irq(host->irq, host);
diff --git a/drivers/mtd/nand/raw/lpc32xx_slc.c b/drivers/mtd/nand/raw/lpc32xx_slc.c
index 7c8402f..b47e3c0 100644
--- a/drivers/mtd/nand/raw/lpc32xx_slc.c
+++ b/drivers/mtd/nand/raw/lpc32xx_slc.c
@@ -282,7 +282,7 @@  static void lpc32xx_nand_cmd_ctrl(struct mtd_info *mtd, int cmd,
 	unsigned int ctrl)
 {
 	uint32_t tmp;
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	struct lpc32xx_nand_host *host = nand_get_controller_data(chip);
 
 	/* Does CE state need to be changed? */
@@ -306,7 +306,7 @@  static void lpc32xx_nand_cmd_ctrl(struct mtd_info *mtd, int cmd,
  */
 static int lpc32xx_nand_device_ready(struct mtd_info *mtd)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	struct lpc32xx_nand_host *host = nand_get_controller_data(chip);
 	int rdy = 0;
 
@@ -361,7 +361,7 @@  static int lpc32xx_nand_ecc_calculate(struct mtd_info *mtd,
  */
 static uint8_t lpc32xx_nand_read_byte(struct mtd_info *mtd)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	struct lpc32xx_nand_host *host = nand_get_controller_data(chip);
 
 	return (uint8_t)readl(SLC_DATA(host->io_base));
@@ -372,7 +372,7 @@  static uint8_t lpc32xx_nand_read_byte(struct mtd_info *mtd)
  */
 static void lpc32xx_nand_read_buf(struct mtd_info *mtd, u_char *buf, int len)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	struct lpc32xx_nand_host *host = nand_get_controller_data(chip);
 
 	/* Direct device read with no ECC */
@@ -385,7 +385,7 @@  static void lpc32xx_nand_read_buf(struct mtd_info *mtd, u_char *buf, int len)
  */
 static void lpc32xx_nand_write_buf(struct mtd_info *mtd, const uint8_t *buf, int len)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	struct lpc32xx_nand_host *host = nand_get_controller_data(chip);
 
 	/* Direct device write with no ECC */
@@ -450,7 +450,7 @@  static void lpc32xx_dma_complete_func(void *completion)
 static int lpc32xx_xmit_dma(struct mtd_info *mtd, dma_addr_t dma,
 			    void *mem, int len, enum dma_transfer_direction dir)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	struct lpc32xx_nand_host *host = nand_get_controller_data(chip);
 	struct dma_async_tx_descriptor *desc;
 	int flags = DMA_CTRL_ACK | DMA_PREP_INTERRUPT;
@@ -510,7 +510,7 @@  static int lpc32xx_xmit_dma(struct mtd_info *mtd, dma_addr_t dma,
 static int lpc32xx_xfer(struct mtd_info *mtd, uint8_t *buf, int eccsubpages,
 			int read)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	struct lpc32xx_nand_host *host = nand_get_controller_data(chip);
 	int i, status = 0;
 	unsigned long timeout;
@@ -736,7 +736,7 @@  static int lpc32xx_nand_write_page_raw_syndrome(struct mtd_info *mtd,
 
 static int lpc32xx_nand_dma_setup(struct lpc32xx_nand_host *host)
 {
-	struct mtd_info *mtd = nand_to_mtd(&host->nand_chip);
+	struct mtd_info *mtd = nandchip_to_mtd(&host->nand_chip);
 	dma_cap_mask_t mask;
 
 	if (!host->pdata || !host->pdata->dma_filter) {
@@ -827,7 +827,7 @@  static int lpc32xx_nand_probe(struct platform_device *pdev)
 	host->pdata = dev_get_platdata(&pdev->dev);
 
 	chip = &host->nand_chip;
-	mtd = nand_to_mtd(chip);
+	mtd = nandchip_to_mtd(chip);
 	nand_set_controller_data(chip, host);
 	nand_set_flash_node(chip, pdev->dev.of_node);
 	mtd->owner = THIS_MODULE;
@@ -952,7 +952,7 @@  static int lpc32xx_nand_remove(struct platform_device *pdev)
 {
 	uint32_t tmp;
 	struct lpc32xx_nand_host *host = platform_get_drvdata(pdev);
-	struct mtd_info *mtd = nand_to_mtd(&host->nand_chip);
+	struct mtd_info *mtd = nandchip_to_mtd(&host->nand_chip);
 
 	nand_release(mtd);
 	dma_release_channel(host->dma_chan);
diff --git a/drivers/mtd/nand/raw/mpc5121_nfc.c b/drivers/mtd/nand/raw/mpc5121_nfc.c
index 55f1d4a..e6c510f 100644
--- a/drivers/mtd/nand/raw/mpc5121_nfc.c
+++ b/drivers/mtd/nand/raw/mpc5121_nfc.c
@@ -134,7 +134,7 @@  struct mpc5121_nfc_prv {
 /* Read NFC register */
 static inline u16 nfc_read(struct mtd_info *mtd, uint reg)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	struct mpc5121_nfc_prv *prv = nand_get_controller_data(chip);
 
 	return in_be16(prv->regs + reg);
@@ -143,7 +143,7 @@  static inline u16 nfc_read(struct mtd_info *mtd, uint reg)
 /* Write NFC register */
 static inline void nfc_write(struct mtd_info *mtd, uint reg, u16 val)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	struct mpc5121_nfc_prv *prv = nand_get_controller_data(chip);
 
 	out_be16(prv->regs + reg, val);
@@ -213,7 +213,7 @@  static inline void mpc5121_nfc_send_read_status(struct mtd_info *mtd)
 static irqreturn_t mpc5121_nfc_irq(int irq, void *data)
 {
 	struct mtd_info *mtd = data;
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	struct mpc5121_nfc_prv *prv = nand_get_controller_data(chip);
 
 	nfc_set(mtd, NFC_CONFIG1, NFC_INT_MASK);
@@ -225,7 +225,7 @@  static irqreturn_t mpc5121_nfc_irq(int irq, void *data)
 /* Wait for operation complete */
 static void mpc5121_nfc_done(struct mtd_info *mtd)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	struct mpc5121_nfc_prv *prv = nand_get_controller_data(chip);
 	int rv;
 
@@ -245,7 +245,7 @@  static void mpc5121_nfc_done(struct mtd_info *mtd)
 /* Do address cycle(s) */
 static void mpc5121_nfc_addr_cycle(struct mtd_info *mtd, int column, int page)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	u32 pagemask = chip->pagemask;
 
 	if (column != -1) {
@@ -280,7 +280,7 @@  static void mpc5121_nfc_select_chip(struct mtd_info *mtd, int chip)
 /* Init external chip select logic on ADS5121 board */
 static int ads5121_chipselect_init(struct mtd_info *mtd)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	struct mpc5121_nfc_prv *prv = nand_get_controller_data(chip);
 	struct device_node *dn;
 
@@ -302,7 +302,7 @@  static int ads5121_chipselect_init(struct mtd_info *mtd)
 /* Control chips select signal on ADS5121 board */
 static void ads5121_select_chip(struct mtd_info *mtd, int chip)
 {
-	struct nand_chip *nand = mtd_to_nand(mtd);
+	struct nand_chip *nand = mtd_to_nandchip(mtd);
 	struct mpc5121_nfc_prv *prv = nand_get_controller_data(nand);
 	u8 v;
 
@@ -332,7 +332,7 @@  static int mpc5121_nfc_dev_ready(struct mtd_info *mtd)
 static void mpc5121_nfc_command(struct mtd_info *mtd, unsigned command,
 							int column, int page)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	struct mpc5121_nfc_prv *prv = nand_get_controller_data(chip);
 
 	prv->column = (column >= 0) ? column : 0;
@@ -405,7 +405,7 @@  static void mpc5121_nfc_command(struct mtd_info *mtd, unsigned command,
 static void mpc5121_nfc_copy_spare(struct mtd_info *mtd, uint offset,
 						u8 *buffer, uint size, int wr)
 {
-	struct nand_chip *nand = mtd_to_nand(mtd);
+	struct nand_chip *nand = mtd_to_nandchip(mtd);
 	struct mpc5121_nfc_prv *prv = nand_get_controller_data(nand);
 	uint o, s, sbsize, blksize;
 
@@ -457,7 +457,7 @@  static void mpc5121_nfc_copy_spare(struct mtd_info *mtd, uint offset,
 static void mpc5121_nfc_buf_copy(struct mtd_info *mtd, u_char *buf, int len,
 									int wr)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	struct mpc5121_nfc_prv *prv = nand_get_controller_data(chip);
 	uint c = prv->column;
 	uint l;
@@ -535,7 +535,7 @@  static u16 mpc5121_nfc_read_word(struct mtd_info *mtd)
  */
 static int mpc5121_nfc_read_hw_config(struct mtd_info *mtd)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	struct mpc5121_nfc_prv *prv = nand_get_controller_data(chip);
 	struct mpc512x_reset_module *rm;
 	struct device_node *rmnode;
@@ -614,7 +614,7 @@  static int mpc5121_nfc_read_hw_config(struct mtd_info *mtd)
 /* Free driver resources */
 static void mpc5121_nfc_free(struct device *dev, struct mtd_info *mtd)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	struct mpc5121_nfc_prv *prv = nand_get_controller_data(chip);
 
 	if (prv->clk)
@@ -654,7 +654,7 @@  static int mpc5121_nfc_probe(struct platform_device *op)
 		return -ENOMEM;
 
 	chip = &prv->chip;
-	mtd = nand_to_mtd(chip);
+	mtd = nandchip_to_mtd(chip);
 
 	mtd->dev.parent = dev;
 	nand_set_controller_data(chip, prv);
diff --git a/drivers/mtd/nand/raw/mtk_nand.c b/drivers/mtd/nand/raw/mtk_nand.c
index 3f4a98b..a0a7f6c 100644
--- a/drivers/mtd/nand/raw/mtk_nand.c
+++ b/drivers/mtd/nand/raw/mtk_nand.c
@@ -305,7 +305,7 @@  static int mtk_nfc_send_address(struct mtk_nfc *nfc, int addr)
 
 static int mtk_nfc_hw_runtime_config(struct mtd_info *mtd)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	struct mtk_nfc_nand_chip *mtk_nand = to_mtk_nand(chip);
 	struct mtk_nfc *nfc = nand_get_controller_data(chip);
 	u32 fmt, spare;
@@ -418,7 +418,7 @@  static int mtk_nfc_hw_runtime_config(struct mtd_info *mtd)
 
 static void mtk_nfc_select_chip(struct mtd_info *mtd, int chip)
 {
-	struct nand_chip *nand = mtd_to_nand(mtd);
+	struct nand_chip *nand = mtd_to_nandchip(mtd);
 	struct mtk_nfc *nfc = nand_get_controller_data(nand);
 	struct mtk_nfc_nand_chip *mtk_nand = to_mtk_nand(nand);
 
@@ -432,7 +432,7 @@  static void mtk_nfc_select_chip(struct mtd_info *mtd, int chip)
 
 static int mtk_nfc_dev_ready(struct mtd_info *mtd)
 {
-	struct mtk_nfc *nfc = nand_get_controller_data(mtd_to_nand(mtd));
+	struct mtk_nfc *nfc = nand_get_controller_data(mtd_to_nandchip(mtd));
 
 	if (nfi_readl(nfc, NFI_STA) & STA_BUSY)
 		return 0;
@@ -442,7 +442,7 @@  static int mtk_nfc_dev_ready(struct mtd_info *mtd)
 
 static void mtk_nfc_cmd_ctrl(struct mtd_info *mtd, int dat, unsigned int ctrl)
 {
-	struct mtk_nfc *nfc = nand_get_controller_data(mtd_to_nand(mtd));
+	struct mtk_nfc *nfc = nand_get_controller_data(mtd_to_nandchip(mtd));
 
 	if (ctrl & NAND_ALE) {
 		mtk_nfc_send_address(nfc, dat);
@@ -467,7 +467,7 @@  static inline void mtk_nfc_wait_ioready(struct mtk_nfc *nfc)
 
 static inline u8 mtk_nfc_read_byte(struct mtd_info *mtd)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	struct mtk_nfc *nfc = nand_get_controller_data(chip);
 	u32 reg;
 
@@ -504,7 +504,7 @@  static void mtk_nfc_read_buf(struct mtd_info *mtd, u8 *buf, int len)
 
 static void mtk_nfc_write_byte(struct mtd_info *mtd, u8 byte)
 {
-	struct mtk_nfc *nfc = nand_get_controller_data(mtd_to_nand(mtd));
+	struct mtk_nfc *nfc = nand_get_controller_data(mtd_to_nandchip(mtd));
 	u32 reg;
 
 	reg = nfi_readl(nfc, NFI_STA) & NFI_FSM_MASK;
@@ -550,7 +550,7 @@  static void mtk_nfc_no_bad_mark_swap(struct mtd_info *a, u8 *b, int c)
 
 static void mtk_nfc_bad_mark_swap(struct mtd_info *mtd, u8 *buf, int raw)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	struct mtk_nfc_nand_chip *nand = to_mtk_nand(chip);
 	u32 bad_pos = nand->bad_mark.pos;
 
@@ -565,7 +565,7 @@  static void mtk_nfc_bad_mark_swap(struct mtd_info *mtd, u8 *buf, int raw)
 static int mtk_nfc_format_subpage(struct mtd_info *mtd, u32 offset,
 				  u32 len, const u8 *buf)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	struct mtk_nfc_nand_chip *mtk_nand = to_mtk_nand(chip);
 	struct mtk_nfc *nfc = nand_get_controller_data(chip);
 	struct mtk_nfc_fdm *fdm = &mtk_nand->fdm;
@@ -599,7 +599,7 @@  static int mtk_nfc_format_subpage(struct mtd_info *mtd, u32 offset,
 
 static void mtk_nfc_format_page(struct mtd_info *mtd, const u8 *buf)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	struct mtk_nfc_nand_chip *mtk_nand = to_mtk_nand(chip);
 	struct mtk_nfc *nfc = nand_get_controller_data(chip);
 	struct mtk_nfc_fdm *fdm = &mtk_nand->fdm;
@@ -812,7 +812,7 @@  static int mtk_nfc_write_oob_std(struct mtd_info *mtd, struct nand_chip *chip,
 
 static int mtk_nfc_update_ecc_stats(struct mtd_info *mtd, u8 *buf, u32 sectors)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	struct mtk_nfc *nfc = nand_get_controller_data(chip);
 	struct mtk_nfc_nand_chip *mtk_nand = to_mtk_nand(chip);
 	struct mtk_ecc_stats stats;
@@ -1063,7 +1063,7 @@  static void mtk_nfc_disable_clk(struct mtk_nfc_clk *clk)
 static int mtk_nfc_ooblayout_free(struct mtd_info *mtd, int section,
 				  struct mtd_oob_region *oob_region)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	struct mtk_nfc_nand_chip *mtk_nand = to_mtk_nand(chip);
 	struct mtk_nfc_fdm *fdm = &mtk_nand->fdm;
 	u32 eccsteps;
@@ -1082,7 +1082,7 @@  static int mtk_nfc_ooblayout_free(struct mtd_info *mtd, int section,
 static int mtk_nfc_ooblayout_ecc(struct mtd_info *mtd, int section,
 				 struct mtd_oob_region *oob_region)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	struct mtk_nfc_nand_chip *mtk_nand = to_mtk_nand(chip);
 	u32 eccsteps;
 
@@ -1103,7 +1103,7 @@  static int mtk_nfc_ooblayout_ecc(struct mtd_info *mtd, int section,
 
 static void mtk_nfc_set_fdm(struct mtk_nfc_fdm *fdm, struct mtd_info *mtd)
 {
-	struct nand_chip *nand = mtd_to_nand(mtd);
+	struct nand_chip *nand = mtd_to_nandchip(mtd);
 	struct mtk_nfc_nand_chip *chip = to_mtk_nand(nand);
 	u32 ecc_bytes;
 
@@ -1120,7 +1120,7 @@  static void mtk_nfc_set_fdm(struct mtk_nfc_fdm *fdm, struct mtd_info *mtd)
 static void mtk_nfc_set_bad_mark_ctl(struct mtk_nfc_bad_mark_ctl *bm_ctl,
 				     struct mtd_info *mtd)
 {
-	struct nand_chip *nand = mtd_to_nand(mtd);
+	struct nand_chip *nand = mtd_to_nandchip(mtd);
 
 	if (mtd->writesize == 512) {
 		bm_ctl->bm_swap = mtk_nfc_no_bad_mark_swap;
@@ -1133,7 +1133,7 @@  static void mtk_nfc_set_bad_mark_ctl(struct mtk_nfc_bad_mark_ctl *bm_ctl,
 
 static void mtk_nfc_set_spare_per_sector(u32 *sps, struct mtd_info *mtd)
 {
-	struct nand_chip *nand = mtd_to_nand(mtd);
+	struct nand_chip *nand = mtd_to_nandchip(mtd);
 	u32 spare[] = {16, 26, 27, 28, 32, 36, 40, 44,
 			48, 49, 50, 51, 52, 62, 63, 64};
 	u32 eccsteps, i;
@@ -1163,7 +1163,7 @@  static void mtk_nfc_set_spare_per_sector(u32 *sps, struct mtd_info *mtd)
 
 static int mtk_nfc_ecc_init(struct device *dev, struct mtd_info *mtd)
 {
-	struct nand_chip *nand = mtd_to_nand(mtd);
+	struct nand_chip *nand = mtd_to_nandchip(mtd);
 	u32 spare;
 	int free;
 
@@ -1287,7 +1287,7 @@  static int mtk_nfc_nand_chip_init(struct device *dev, struct mtk_nfc *nfc,
 	nand->ecc.read_oob_raw = mtk_nfc_read_oob_std;
 	nand->ecc.read_oob = mtk_nfc_read_oob_std;
 
-	mtd = nand_to_mtd(nand);
+	mtd = nandchip_to_mtd(nand);
 	mtd->owner = THIS_MODULE;
 	mtd->dev.parent = dev;
 	mtd->name = MTK_NAME;
@@ -1450,7 +1450,7 @@  static int mtk_nfc_remove(struct platform_device *pdev)
 	while (!list_empty(&nfc->chips)) {
 		chip = list_first_entry(&nfc->chips, struct mtk_nfc_nand_chip,
 					node);
-		nand_release(nand_to_mtd(&chip->nand));
+		nand_release(nandchip_to_mtd(&chip->nand));
 		list_del(&chip->node);
 	}
 
@@ -1490,7 +1490,7 @@  static int mtk_nfc_resume(struct device *dev)
 	/* reset NAND chip if VCC was powered off */
 	list_for_each_entry(chip, &nfc->chips, node) {
 		nand = &chip->nand;
-		mtd = nand_to_mtd(nand);
+		mtd = nandchip_to_mtd(nand);
 		for (i = 0; i < chip->nsels; i++) {
 			nand->select_chip(mtd, i);
 			nand->cmdfunc(mtd, NAND_CMD_RESET, -1, -1);
diff --git a/drivers/mtd/nand/raw/mxc_nand.c b/drivers/mtd/nand/raw/mxc_nand.c
index 42bff4a..c50a850 100644
--- a/drivers/mtd/nand/raw/mxc_nand.c
+++ b/drivers/mtd/nand/raw/mxc_nand.c
@@ -466,7 +466,7 @@  static void send_addr_v1_v2(struct mxc_nand_host *host, uint16_t addr, int islas
 
 static void send_page_v3(struct mtd_info *mtd, unsigned int ops)
 {
-	struct nand_chip *nand_chip = mtd_to_nand(mtd);
+	struct nand_chip *nand_chip = mtd_to_nandchip(mtd);
 	struct mxc_nand_host *host = nand_get_controller_data(nand_chip);
 	uint32_t tmp;
 
@@ -482,7 +482,7 @@  static void send_page_v3(struct mtd_info *mtd, unsigned int ops)
 
 static void send_page_v2(struct mtd_info *mtd, unsigned int ops)
 {
-	struct nand_chip *nand_chip = mtd_to_nand(mtd);
+	struct nand_chip *nand_chip = mtd_to_nandchip(mtd);
 	struct mxc_nand_host *host = nand_get_controller_data(nand_chip);
 
 	/* NANDFC buffer 0 is used for page read/write */
@@ -496,7 +496,7 @@  static void send_page_v2(struct mtd_info *mtd, unsigned int ops)
 
 static void send_page_v1(struct mtd_info *mtd, unsigned int ops)
 {
-	struct nand_chip *nand_chip = mtd_to_nand(mtd);
+	struct nand_chip *nand_chip = mtd_to_nandchip(mtd);
 	struct mxc_nand_host *host = nand_get_controller_data(nand_chip);
 	int bufs, i;
 
@@ -597,7 +597,7 @@  static void mxc_nand_enable_hwecc(struct mtd_info *mtd, int mode)
 static int mxc_nand_correct_data_v1(struct mtd_info *mtd, u_char *dat,
 				 u_char *read_ecc, u_char *calc_ecc)
 {
-	struct nand_chip *nand_chip = mtd_to_nand(mtd);
+	struct nand_chip *nand_chip = mtd_to_nandchip(mtd);
 	struct mxc_nand_host *host = nand_get_controller_data(nand_chip);
 
 	/*
@@ -618,7 +618,7 @@  static int mxc_nand_correct_data_v1(struct mtd_info *mtd, u_char *dat,
 static int mxc_nand_correct_data_v2_v3(struct mtd_info *mtd, u_char *dat,
 				 u_char *read_ecc, u_char *calc_ecc)
 {
-	struct nand_chip *nand_chip = mtd_to_nand(mtd);
+	struct nand_chip *nand_chip = mtd_to_nandchip(mtd);
 	struct mxc_nand_host *host = nand_get_controller_data(nand_chip);
 	u32 ecc_stat, err;
 	int no_subpages = 1;
@@ -656,7 +656,7 @@  static int mxc_nand_calculate_ecc(struct mtd_info *mtd, const u_char *dat,
 
 static u_char mxc_nand_read_byte(struct mtd_info *mtd)
 {
-	struct nand_chip *nand_chip = mtd_to_nand(mtd);
+	struct nand_chip *nand_chip = mtd_to_nandchip(mtd);
 	struct mxc_nand_host *host = nand_get_controller_data(nand_chip);
 	uint8_t ret;
 
@@ -680,7 +680,7 @@  static u_char mxc_nand_read_byte(struct mtd_info *mtd)
 
 static uint16_t mxc_nand_read_word(struct mtd_info *mtd)
 {
-	struct nand_chip *nand_chip = mtd_to_nand(mtd);
+	struct nand_chip *nand_chip = mtd_to_nandchip(mtd);
 	struct mxc_nand_host *host = nand_get_controller_data(nand_chip);
 	uint16_t ret;
 
@@ -696,7 +696,7 @@  static uint16_t mxc_nand_read_word(struct mtd_info *mtd)
 static void mxc_nand_write_buf(struct mtd_info *mtd,
 				const u_char *buf, int len)
 {
-	struct nand_chip *nand_chip = mtd_to_nand(mtd);
+	struct nand_chip *nand_chip = mtd_to_nandchip(mtd);
 	struct mxc_nand_host *host = nand_get_controller_data(nand_chip);
 	u16 col = host->buf_start;
 	int n = mtd->oobsize + mtd->writesize - col;
@@ -714,7 +714,7 @@  static void mxc_nand_write_buf(struct mtd_info *mtd,
  */
 static void mxc_nand_read_buf(struct mtd_info *mtd, u_char *buf, int len)
 {
-	struct nand_chip *nand_chip = mtd_to_nand(mtd);
+	struct nand_chip *nand_chip = mtd_to_nandchip(mtd);
 	struct mxc_nand_host *host = nand_get_controller_data(nand_chip);
 	u16 col = host->buf_start;
 	int n = mtd->oobsize + mtd->writesize - col;
@@ -730,7 +730,7 @@  static void mxc_nand_read_buf(struct mtd_info *mtd, u_char *buf, int len)
  * deselect of the NAND chip */
 static void mxc_nand_select_chip_v1_v3(struct mtd_info *mtd, int chip)
 {
-	struct nand_chip *nand_chip = mtd_to_nand(mtd);
+	struct nand_chip *nand_chip = mtd_to_nandchip(mtd);
 	struct mxc_nand_host *host = nand_get_controller_data(nand_chip);
 
 	if (chip == -1) {
@@ -751,7 +751,7 @@  static void mxc_nand_select_chip_v1_v3(struct mtd_info *mtd, int chip)
 
 static void mxc_nand_select_chip_v2(struct mtd_info *mtd, int chip)
 {
-	struct nand_chip *nand_chip = mtd_to_nand(mtd);
+	struct nand_chip *nand_chip = mtd_to_nandchip(mtd);
 	struct mxc_nand_host *host = nand_get_controller_data(nand_chip);
 
 	if (chip == -1) {
@@ -784,7 +784,7 @@  static void mxc_nand_select_chip_v2(struct mtd_info *mtd, int chip)
  */
 static void copy_spare(struct mtd_info *mtd, bool bfrom)
 {
-	struct nand_chip *this = mtd_to_nand(mtd);
+	struct nand_chip *this = mtd_to_nandchip(mtd);
 	struct mxc_nand_host *host = nand_get_controller_data(this);
 	u16 i, oob_chunk_size;
 	u16 num_chunks = mtd->writesize / 512;
@@ -827,7 +827,7 @@  static void copy_spare(struct mtd_info *mtd, bool bfrom)
  */
 static void mxc_do_addr_cycle(struct mtd_info *mtd, int column, int page_addr)
 {
-	struct nand_chip *nand_chip = mtd_to_nand(mtd);
+	struct nand_chip *nand_chip = mtd_to_nandchip(mtd);
 	struct mxc_nand_host *host = nand_get_controller_data(nand_chip);
 
 	/* Write out column address, if necessary */
@@ -880,7 +880,7 @@  static void mxc_do_addr_cycle(struct mtd_info *mtd, int column, int page_addr)
 static int mxc_v1_ooblayout_ecc(struct mtd_info *mtd, int section,
 				struct mtd_oob_region *oobregion)
 {
-	struct nand_chip *nand_chip = mtd_to_nand(mtd);
+	struct nand_chip *nand_chip = mtd_to_nandchip(mtd);
 
 	if (section >= nand_chip->ecc.steps)
 		return -ERANGE;
@@ -894,7 +894,7 @@  static int mxc_v1_ooblayout_ecc(struct mtd_info *mtd, int section,
 static int mxc_v1_ooblayout_free(struct mtd_info *mtd, int section,
 				 struct mtd_oob_region *oobregion)
 {
-	struct nand_chip *nand_chip = mtd_to_nand(mtd);
+	struct nand_chip *nand_chip = mtd_to_nandchip(mtd);
 
 	if (section > nand_chip->ecc.steps)
 		return -ERANGE;
@@ -928,7 +928,7 @@  static int mxc_v1_ooblayout_free(struct mtd_info *mtd, int section,
 static int mxc_v2_ooblayout_ecc(struct mtd_info *mtd, int section,
 				struct mtd_oob_region *oobregion)
 {
-	struct nand_chip *nand_chip = mtd_to_nand(mtd);
+	struct nand_chip *nand_chip = mtd_to_nandchip(mtd);
 	int stepsize = nand_chip->ecc.bytes == 9 ? 16 : 26;
 
 	if (section >= nand_chip->ecc.steps)
@@ -943,7 +943,7 @@  static int mxc_v2_ooblayout_ecc(struct mtd_info *mtd, int section,
 static int mxc_v2_ooblayout_free(struct mtd_info *mtd, int section,
 				 struct mtd_oob_region *oobregion)
 {
-	struct nand_chip *nand_chip = mtd_to_nand(mtd);
+	struct nand_chip *nand_chip = mtd_to_nandchip(mtd);
 	int stepsize = nand_chip->ecc.bytes == 9 ? 16 : 26;
 
 	if (section >= nand_chip->ecc.steps)
@@ -989,7 +989,7 @@  static int get_eccsize(struct mtd_info *mtd)
 
 static void preset_v1(struct mtd_info *mtd)
 {
-	struct nand_chip *nand_chip = mtd_to_nand(mtd);
+	struct nand_chip *nand_chip = mtd_to_nandchip(mtd);
 	struct mxc_nand_host *host = nand_get_controller_data(nand_chip);
 	uint16_t config1 = 0;
 
@@ -1019,7 +1019,7 @@  static int mxc_nand_v2_setup_data_interface(struct mtd_info *mtd,
 					const struct nand_data_interface *conf,
 					bool check_only)
 {
-	struct nand_chip *nand_chip = mtd_to_nand(mtd);
+	struct nand_chip *nand_chip = mtd_to_nandchip(mtd);
 	struct mxc_nand_host *host = nand_get_controller_data(nand_chip);
 	int tRC_min_ns, tRC_ps, ret;
 	unsigned long rate, rate_round;
@@ -1093,7 +1093,7 @@  static int mxc_nand_v2_setup_data_interface(struct mtd_info *mtd,
 
 static void preset_v2(struct mtd_info *mtd)
 {
-	struct nand_chip *nand_chip = mtd_to_nand(mtd);
+	struct nand_chip *nand_chip = mtd_to_nandchip(mtd);
 	struct mxc_nand_host *host = nand_get_controller_data(nand_chip);
 	uint16_t config1 = 0;
 
@@ -1139,7 +1139,7 @@  static void preset_v2(struct mtd_info *mtd)
 
 static void preset_v3(struct mtd_info *mtd)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	struct mxc_nand_host *host = nand_get_controller_data(chip);
 	uint32_t config2, config3;
 	int i, addr_phases;
@@ -1210,7 +1210,7 @@  static void preset_v3(struct mtd_info *mtd)
 static void mxc_nand_command(struct mtd_info *mtd, unsigned command,
 				int column, int page_addr)
 {
-	struct nand_chip *nand_chip = mtd_to_nand(mtd);
+	struct nand_chip *nand_chip = mtd_to_nandchip(mtd);
 	struct mxc_nand_host *host = nand_get_controller_data(nand_chip);
 
 	pr_debug("mxc_nand_command (cmd = 0x%x, col = 0x%x, page = 0x%x)\n",
@@ -1322,7 +1322,7 @@  static int mxc_nand_onfi_set_features(struct mtd_info *mtd,
 				      struct nand_chip *chip, int addr,
 				      u8 *subfeature_param)
 {
-	struct nand_chip *nand_chip = mtd_to_nand(mtd);
+	struct nand_chip *nand_chip = mtd_to_nandchip(mtd);
 	struct mxc_nand_host *host = nand_get_controller_data(nand_chip);
 	int i;
 
@@ -1348,7 +1348,7 @@  static int mxc_nand_onfi_get_features(struct mtd_info *mtd,
 				      struct nand_chip *chip, int addr,
 				      u8 *subfeature_param)
 {
-	struct nand_chip *nand_chip = mtd_to_nand(mtd);
+	struct nand_chip *nand_chip = mtd_to_nandchip(mtd);
 	struct mxc_nand_host *host = nand_get_controller_data(nand_chip);
 	int i;
 
@@ -1629,7 +1629,7 @@  static int mxcnd_probe(struct platform_device *pdev)
 	host->dev = &pdev->dev;
 	/* structures must be linked */
 	this = &host->nand;
-	mtd = nand_to_mtd(this);
+	mtd = nandchip_to_mtd(this);
 	mtd->dev.parent = &pdev->dev;
 	mtd->name = DRIVER_NAME;
 
@@ -1832,7 +1832,7 @@  static int mxcnd_remove(struct platform_device *pdev)
 {
 	struct mxc_nand_host *host = platform_get_drvdata(pdev);
 
-	nand_release(nand_to_mtd(&host->nand));
+	nand_release(nandchip_to_mtd(&host->nand));
 	if (host->clk_act)
 		clk_disable_unprepare(host->clk);
 
diff --git a/drivers/mtd/nand/raw/nand_amd.c b/drivers/mtd/nand/raw/nand_amd.c
index 22f060f..51e9ba7 100644
--- a/drivers/mtd/nand/raw/nand_amd.c
+++ b/drivers/mtd/nand/raw/nand_amd.c
@@ -19,7 +19,7 @@ 
 
 static void amd_nand_decode_id(struct nand_chip *chip)
 {
-	struct mtd_info *mtd = nand_to_mtd(chip);
+	struct mtd_info *mtd = nandchip_to_mtd(chip);
 
 	nand_decode_ext_id(chip);
 
diff --git a/drivers/mtd/nand/raw/nand_base.c b/drivers/mtd/nand/raw/nand_base.c
index 730165b..a113cfb 100644
--- a/drivers/mtd/nand/raw/nand_base.c
+++ b/drivers/mtd/nand/raw/nand_base.c
@@ -57,7 +57,7 @@  static int nand_do_write_oob(struct mtd_info *mtd, loff_t to,
 static int nand_ooblayout_ecc_sp(struct mtd_info *mtd, int section,
 				 struct mtd_oob_region *oobregion)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	struct nand_ecc_ctrl *ecc = &chip->ecc;
 
 	if (section > 1)
@@ -106,7 +106,7 @@  static int nand_ooblayout_free_sp(struct mtd_info *mtd, int section,
 static int nand_ooblayout_ecc_lp(struct mtd_info *mtd, int section,
 				 struct mtd_oob_region *oobregion)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	struct nand_ecc_ctrl *ecc = &chip->ecc;
 
 	if (section)
@@ -121,7 +121,7 @@  static int nand_ooblayout_ecc_lp(struct mtd_info *mtd, int section,
 static int nand_ooblayout_free_lp(struct mtd_info *mtd, int section,
 				  struct mtd_oob_region *oobregion)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	struct nand_ecc_ctrl *ecc = &chip->ecc;
 
 	if (section)
@@ -146,7 +146,7 @@  static int nand_ooblayout_free_lp(struct mtd_info *mtd, int section,
 static int nand_ooblayout_ecc_lp_hamming(struct mtd_info *mtd, int section,
 					 struct mtd_oob_region *oobregion)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	struct nand_ecc_ctrl *ecc = &chip->ecc;
 
 	if (section)
@@ -173,7 +173,7 @@  static int nand_ooblayout_ecc_lp_hamming(struct mtd_info *mtd, int section,
 static int nand_ooblayout_free_lp_hamming(struct mtd_info *mtd, int section,
 					  struct mtd_oob_region *oobregion)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	struct nand_ecc_ctrl *ecc = &chip->ecc;
 	int ecc_offset = 0;
 
@@ -210,7 +210,7 @@  static int nand_ooblayout_free_lp_hamming(struct mtd_info *mtd, int section,
 static int check_offs_len(struct mtd_info *mtd,
 					loff_t ofs, uint64_t len)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	int ret = 0;
 
 	/* Start address must align on block boundary */
@@ -236,7 +236,7 @@  static int check_offs_len(struct mtd_info *mtd,
  */
 static void nand_release_device(struct mtd_info *mtd)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 
 	/* Release the controller and the chip */
 	spin_lock(&chip->controller->lock);
@@ -254,7 +254,7 @@  static void nand_release_device(struct mtd_info *mtd)
  */
 static uint8_t nand_read_byte(struct mtd_info *mtd)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	return readb(chip->IO_ADDR_R);
 }
 
@@ -267,7 +267,7 @@  static uint8_t nand_read_byte(struct mtd_info *mtd)
  */
 static uint8_t nand_read_byte16(struct mtd_info *mtd)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	return (uint8_t) cpu_to_le16(readw(chip->IO_ADDR_R));
 }
 
@@ -279,7 +279,7 @@  static uint8_t nand_read_byte16(struct mtd_info *mtd)
  */
 static u16 nand_read_word(struct mtd_info *mtd)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	return readw(chip->IO_ADDR_R);
 }
 
@@ -292,7 +292,7 @@  static u16 nand_read_word(struct mtd_info *mtd)
  */
 static void nand_select_chip(struct mtd_info *mtd, int chipnr)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 
 	switch (chipnr) {
 	case -1:
@@ -315,7 +315,7 @@  static void nand_select_chip(struct mtd_info *mtd, int chipnr)
  */
 static void nand_write_byte(struct mtd_info *mtd, uint8_t byte)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 
 	chip->write_buf(mtd, &byte, 1);
 }
@@ -329,7 +329,7 @@  static void nand_write_byte(struct mtd_info *mtd, uint8_t byte)
  */
 static void nand_write_byte16(struct mtd_info *mtd, uint8_t byte)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	uint16_t word = byte;
 
 	/*
@@ -361,7 +361,7 @@  static void nand_write_byte16(struct mtd_info *mtd, uint8_t byte)
  */
 static void nand_write_buf(struct mtd_info *mtd, const uint8_t *buf, int len)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 
 	iowrite8_rep(chip->IO_ADDR_W, buf, len);
 }
@@ -376,7 +376,7 @@  static void nand_write_buf(struct mtd_info *mtd, const uint8_t *buf, int len)
  */
 static void nand_read_buf(struct mtd_info *mtd, uint8_t *buf, int len)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 
 	ioread8_rep(chip->IO_ADDR_R, buf, len);
 }
@@ -391,7 +391,7 @@  static void nand_read_buf(struct mtd_info *mtd, uint8_t *buf, int len)
  */
 static void nand_write_buf16(struct mtd_info *mtd, const uint8_t *buf, int len)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	u16 *p = (u16 *) buf;
 
 	iowrite16_rep(chip->IO_ADDR_W, p, len >> 1);
@@ -407,7 +407,7 @@  static void nand_write_buf16(struct mtd_info *mtd, const uint8_t *buf, int len)
  */
 static void nand_read_buf16(struct mtd_info *mtd, uint8_t *buf, int len)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	u16 *p = (u16 *) buf;
 
 	ioread16_rep(chip->IO_ADDR_R, p, len >> 1);
@@ -423,7 +423,7 @@  static void nand_read_buf16(struct mtd_info *mtd, uint8_t *buf, int len)
 static int nand_block_bad(struct mtd_info *mtd, loff_t ofs)
 {
 	int page, page_end, res;
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	u8 bad;
 
 	if (chip->bbt_options & NAND_BBT_SCANLASTPAGE)
@@ -461,7 +461,7 @@  static int nand_block_bad(struct mtd_info *mtd, loff_t ofs)
  */
 static int nand_default_block_markbad(struct mtd_info *mtd, loff_t ofs)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	struct mtd_oob_ops ops;
 	uint8_t buf[2] = { 0, 0 };
 	int ret = 0, res, i = 0;
@@ -511,7 +511,7 @@  static int nand_default_block_markbad(struct mtd_info *mtd, loff_t ofs)
 */
 static int nand_block_markbad_lowlevel(struct mtd_info *mtd, loff_t ofs)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	int res, ret = 0;
 
 	if (!(chip->bbt_options & NAND_BBT_NO_OOB_BBM)) {
@@ -552,7 +552,7 @@  static int nand_block_markbad_lowlevel(struct mtd_info *mtd, loff_t ofs)
  */
 static int nand_check_wp(struct mtd_info *mtd)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 
 	/* Broken xD cards report WP despite being writable */
 	if (chip->options & NAND_BROKEN_XD)
@@ -572,7 +572,7 @@  static int nand_check_wp(struct mtd_info *mtd)
  */
 static int nand_block_isreserved(struct mtd_info *mtd, loff_t ofs)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 
 	if (!chip->bbt)
 		return 0;
@@ -591,7 +591,7 @@  static int nand_block_isreserved(struct mtd_info *mtd, loff_t ofs)
  */
 static int nand_block_checkbad(struct mtd_info *mtd, loff_t ofs, int allowbbt)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 
 	if (!chip->bbt)
 		return chip->block_bad(mtd, ofs);
@@ -610,7 +610,7 @@  static int nand_block_checkbad(struct mtd_info *mtd, loff_t ofs, int allowbbt)
  */
 static void panic_nand_wait_ready(struct mtd_info *mtd, unsigned long timeo)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	int i;
 
 	/* Wait for the device to get ready */
@@ -630,7 +630,7 @@  static void panic_nand_wait_ready(struct mtd_info *mtd, unsigned long timeo)
  */
 void nand_wait_ready(struct mtd_info *mtd)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	unsigned long timeo = 400;
 
 	if (in_interrupt() || oops_in_progress)
@@ -658,7 +658,7 @@  void nand_wait_ready(struct mtd_info *mtd)
  */
 static void nand_wait_status_ready(struct mtd_info *mtd, unsigned long timeo)
 {
-	register struct nand_chip *chip = mtd_to_nand(mtd);
+	register struct nand_chip *chip = mtd_to_nandchip(mtd);
 
 	timeo = jiffies + msecs_to_jiffies(timeo);
 	do {
@@ -681,7 +681,7 @@  static void nand_wait_status_ready(struct mtd_info *mtd, unsigned long timeo)
 static void nand_command(struct mtd_info *mtd, unsigned int command,
 			 int column, int page_addr)
 {
-	register struct nand_chip *chip = mtd_to_nand(mtd);
+	register struct nand_chip *chip = mtd_to_nandchip(mtd);
 	int ctrl = NAND_CTRL_CLE | NAND_CTRL_CHANGE;
 
 	/* Write out the command to the device */
@@ -805,7 +805,7 @@  static void nand_ccs_delay(struct nand_chip *chip)
 static void nand_command_lp(struct mtd_info *mtd, unsigned int command,
 			    int column, int page_addr)
 {
-	register struct nand_chip *chip = mtd_to_nand(mtd);
+	register struct nand_chip *chip = mtd_to_nandchip(mtd);
 
 	/* Emulate NAND_CMD_READOOB */
 	if (command == NAND_CMD_READOOB) {
@@ -939,7 +939,7 @@  static void panic_nand_get_device(struct nand_chip *chip,
 static int
 nand_get_device(struct mtd_info *mtd, int new_state)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	spinlock_t *lock = &chip->controller->lock;
 	wait_queue_head_t *wq = &chip->controller->wq;
 	DECLARE_WAITQUEUE(wait, current);
@@ -1049,7 +1049,7 @@  static int nand_wait(struct mtd_info *mtd, struct nand_chip *chip)
  */
 static int nand_reset_data_interface(struct nand_chip *chip)
 {
-	struct mtd_info *mtd = nand_to_mtd(chip);
+	struct mtd_info *mtd = nandchip_to_mtd(chip);
 	const struct nand_data_interface *conf;
 	int ret;
 
@@ -1092,7 +1092,7 @@  static int nand_reset_data_interface(struct nand_chip *chip)
  */
 static int nand_setup_data_interface(struct nand_chip *chip)
 {
-	struct mtd_info *mtd = nand_to_mtd(chip);
+	struct mtd_info *mtd = nandchip_to_mtd(chip);
 	int ret;
 
 	if (!chip->setup_data_interface || !chip->data_interface)
@@ -1135,7 +1135,7 @@  static int nand_setup_data_interface(struct nand_chip *chip)
  */
 static int nand_init_data_interface(struct nand_chip *chip)
 {
-	struct mtd_info *mtd = nand_to_mtd(chip);
+	struct mtd_info *mtd = nandchip_to_mtd(chip);
 	int modes, mode, ret;
 
 	if (!chip->setup_data_interface)
@@ -1190,7 +1190,7 @@  static void nand_release_data_interface(struct nand_chip *chip)
  */
 int nand_reset(struct nand_chip *chip, int chipnr)
 {
-	struct mtd_info *mtd = nand_to_mtd(chip);
+	struct mtd_info *mtd = nandchip_to_mtd(chip);
 	int ret;
 
 	ret = nand_reset_data_interface(chip);
@@ -1231,7 +1231,7 @@  static int __nand_unlock(struct mtd_info *mtd, loff_t ofs,
 {
 	int ret = 0;
 	int status, page;
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 
 	/* Submit address of first page to unlock */
 	page = ofs >> chip->page_shift;
@@ -1266,7 +1266,7 @@  int nand_unlock(struct mtd_info *mtd, loff_t ofs, uint64_t len)
 {
 	int ret = 0;
 	int chipnr;
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 
 	pr_debug("%s: start = 0x%012llx, len = %llu\n",
 			__func__, (unsigned long long)ofs, len);
@@ -1329,7 +1329,7 @@  int nand_lock(struct mtd_info *mtd, loff_t ofs, uint64_t len)
 {
 	int ret = 0;
 	int chipnr, status, page;
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 
 	pr_debug("%s: start = 0x%012llx, len = %llu\n",
 			__func__, (unsigned long long)ofs, len);
@@ -1935,7 +1935,7 @@  static int nand_read_page_syndrome(struct mtd_info *mtd, struct nand_chip *chip,
 static uint8_t *nand_transfer_oob(struct mtd_info *mtd, uint8_t *oob,
 				  struct mtd_oob_ops *ops, size_t len)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	int ret;
 
 	switch (ops->mode) {
@@ -1968,7 +1968,7 @@  static uint8_t *nand_transfer_oob(struct mtd_info *mtd, uint8_t *oob,
  */
 static int nand_setup_read_retry(struct mtd_info *mtd, int retry_mode)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 
 	pr_debug("setting READ RETRY mode %d\n", retry_mode);
 
@@ -1993,7 +1993,7 @@  static int nand_do_read_ops(struct mtd_info *mtd, loff_t from,
 			    struct mtd_oob_ops *ops)
 {
 	int chipnr, page, realpage, col, bytes, aligned, oob_required;
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	int ret = 0;
 	uint32_t readlen = ops->len;
 	uint32_t oobreadlen = ops->ooblen;
@@ -2176,8 +2176,8 @@  static int nand_do_read_ops(struct mtd_info *mtd, loff_t from,
  *
  * Get hold of the chip and call nand_do_read.
  */
-static int nand_read(struct mtd_info *mtd, loff_t from, size_t len,
-		     size_t *retlen, uint8_t *buf)
+static int nandc_read(struct mtd_info *mtd, loff_t from, size_t len,
+		      size_t *retlen, uint8_t *buf)
 {
 	struct mtd_oob_ops ops;
 	int ret;
@@ -2340,7 +2340,7 @@  static int nand_do_read_oob(struct mtd_info *mtd, loff_t from,
 			    struct mtd_oob_ops *ops)
 {
 	int page, realpage, chipnr;
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	struct mtd_ecc_stats stats;
 	int readlen = ops->ooblen;
 	int len;
@@ -2785,7 +2785,7 @@  static int nand_write_page(struct mtd_info *mtd, struct nand_chip *chip,
 static uint8_t *nand_fill_oob(struct mtd_info *mtd, uint8_t *oob, size_t len,
 			      struct mtd_oob_ops *ops)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	int ret;
 
 	/*
@@ -2827,7 +2827,7 @@  static int nand_do_write_ops(struct mtd_info *mtd, loff_t to,
 			     struct mtd_oob_ops *ops)
 {
 	int chipnr, realpage, page, blockmask, column;
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	uint32_t writelen = ops->len;
 
 	uint32_t oobwritelen = ops->ooblen;
@@ -2959,7 +2959,7 @@  static int nand_do_write_ops(struct mtd_info *mtd, loff_t to,
 static int panic_nand_write(struct mtd_info *mtd, loff_t to, size_t len,
 			    size_t *retlen, const uint8_t *buf)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	struct mtd_oob_ops ops;
 	int ret;
 
@@ -2990,8 +2990,8 @@  static int panic_nand_write(struct mtd_info *mtd, loff_t to, size_t len,
  *
  * NAND write with ECC.
  */
-static int nand_write(struct mtd_info *mtd, loff_t to, size_t len,
-			  size_t *retlen, const uint8_t *buf)
+static int nandc_write(struct mtd_info *mtd, loff_t to, size_t len,
+		       size_t *retlen, const uint8_t *buf)
 {
 	struct mtd_oob_ops ops;
 	int ret;
@@ -3019,7 +3019,7 @@  static int nand_do_write_oob(struct mtd_info *mtd, loff_t to,
 			     struct mtd_oob_ops *ops)
 {
 	int chipnr, page, status, len;
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 
 	pr_debug("%s: to = 0x%08x, len = %i\n",
 			 __func__, (unsigned int)to, (int)ops->ooblen);
@@ -3142,7 +3142,7 @@  static int nand_write_oob(struct mtd_info *mtd, loff_t to,
  */
 static int single_erase(struct mtd_info *mtd, int page)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	/* Send commands to erase a block */
 	chip->cmdfunc(mtd, NAND_CMD_ERASE1, -1, page);
 	chip->cmdfunc(mtd, NAND_CMD_ERASE2, -1, -1);
@@ -3157,7 +3157,7 @@  static int single_erase(struct mtd_info *mtd, int page)
  *
  * Erase one ore more blocks.
  */
-static int nand_erase(struct mtd_info *mtd, struct erase_info *instr)
+static int nandc_erase(struct mtd_info *mtd, struct erase_info *instr)
 {
 	return nand_erase_nand(mtd, instr, 0);
 }
@@ -3174,7 +3174,7 @@  int nand_erase_nand(struct mtd_info *mtd, struct erase_info *instr,
 		    int allowbbt)
 {
 	int page, status, pages_per_block, ret, chipnr;
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	loff_t len;
 
 	pr_debug("%s: start = 0x%012llx, len = %llu\n",
@@ -3300,7 +3300,7 @@  static void nand_sync(struct mtd_info *mtd)
  */
 static int nand_block_isbad(struct mtd_info *mtd, loff_t offs)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	int chipnr = (int)(offs >> chip->chip_shift);
 	int ret;
 
@@ -3344,7 +3344,7 @@  static int nand_block_markbad(struct mtd_info *mtd, loff_t ofs)
  */
 static int nand_max_bad_blocks(struct mtd_info *mtd, loff_t ofs, size_t len)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	u32 part_start_block;
 	u32 part_end_block;
 	u32 part_start_die;
@@ -3438,7 +3438,7 @@  static int nand_suspend(struct mtd_info *mtd)
  */
 static void nand_resume(struct mtd_info *mtd)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 
 	if (chip->state == FL_PM_SUSPENDED)
 		nand_release_device(mtd);
@@ -3544,7 +3544,7 @@  static u16 onfi_crc16(u16 crc, u8 const *p, size_t len)
 static int nand_flash_detect_ext_param_page(struct nand_chip *chip,
 					    struct nand_onfi_params *p)
 {
-	struct mtd_info *mtd = nand_to_mtd(chip);
+	struct mtd_info *mtd = nandchip_to_mtd(chip);
 	struct onfi_ext_param_page *ep;
 	struct onfi_ext_section *s;
 	struct onfi_ext_ecc_info *ecc;
@@ -3617,7 +3617,7 @@  static int nand_flash_detect_ext_param_page(struct nand_chip *chip,
  */
 static int nand_flash_detect_onfi(struct nand_chip *chip)
 {
-	struct mtd_info *mtd = nand_to_mtd(chip);
+	struct mtd_info *mtd = nandchip_to_mtd(chip);
 	struct nand_onfi_params *p = &chip->onfi_params;
 	int i, j;
 	int val;
@@ -3719,7 +3719,7 @@  static int nand_flash_detect_onfi(struct nand_chip *chip)
  */
 static int nand_flash_detect_jedec(struct nand_chip *chip)
 {
-	struct mtd_info *mtd = nand_to_mtd(chip);
+	struct mtd_info *mtd = nandchip_to_mtd(chip);
 	struct nand_jedec_params *p = &chip->jedec_params;
 	struct jedec_ecc_info *ecc;
 	int val;
@@ -3869,7 +3869,7 @@  static int nand_get_bits_per_cell(u8 cellinfo)
  */
 void nand_decode_ext_id(struct nand_chip *chip)
 {
-	struct mtd_info *mtd = nand_to_mtd(chip);
+	struct mtd_info *mtd = nandchip_to_mtd(chip);
 	int extid;
 	u8 *id_data = chip->id.data;
 	/* The 3rd id byte holds MLC / multichip data */
@@ -3899,7 +3899,7 @@  void nand_decode_ext_id(struct nand_chip *chip)
  */
 static void nand_decode_id(struct nand_chip *chip, struct nand_flash_dev *type)
 {
-	struct mtd_info *mtd = nand_to_mtd(chip);
+	struct mtd_info *mtd = nandchip_to_mtd(chip);
 
 	mtd->erasesize = type->erasesize;
 	mtd->writesize = type->pagesize;
@@ -3916,7 +3916,7 @@  static void nand_decode_id(struct nand_chip *chip, struct nand_flash_dev *type)
  */
 static void nand_decode_bbm_options(struct nand_chip *chip)
 {
-	struct mtd_info *mtd = nand_to_mtd(chip);
+	struct mtd_info *mtd = nandchip_to_mtd(chip);
 
 	/* Set the bad block position */
 	if (mtd->writesize > 512 || (chip->options & NAND_BUSWIDTH_16))
@@ -3933,7 +3933,7 @@  static inline bool is_full_id_nand(struct nand_flash_dev *type)
 static bool find_full_id_nand(struct nand_chip *chip,
 			      struct nand_flash_dev *type)
 {
-	struct mtd_info *mtd = nand_to_mtd(chip);
+	struct mtd_info *mtd = nandchip_to_mtd(chip);
 	u8 *id_data = chip->id.data;
 
 	if (!strncmp(type->id, id_data, type->id_len)) {
@@ -4010,7 +4010,7 @@  static void nand_manufacturer_cleanup(struct nand_chip *chip)
 static int nand_detect(struct nand_chip *chip, struct nand_flash_dev *type)
 {
 	const struct nand_manufacturer *manufacturer;
-	struct mtd_info *mtd = nand_to_mtd(chip);
+	struct mtd_info *mtd = nandchip_to_mtd(chip);
 	int busw;
 	int i, ret;
 	u8 *id_data = chip->id.data;
@@ -4333,7 +4333,7 @@  int nand_scan_ident(struct mtd_info *mtd, int maxchips,
 		    struct nand_flash_dev *table)
 {
 	int i, nand_maf_id, nand_dev_id;
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	int ret;
 
 	ret = nand_dt_init(chip);
@@ -4415,7 +4415,7 @@  int nand_scan_ident(struct mtd_info *mtd, int maxchips,
 
 static int nand_set_ecc_soft_ops(struct mtd_info *mtd)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	struct nand_ecc_ctrl *ecc = &chip->ecc;
 
 	if (WARN_ON(ecc->mode != NAND_ECC_SOFT))
@@ -4525,7 +4525,7 @@  static int nand_set_ecc_soft_ops(struct mtd_info *mtd)
  */
 static bool nand_ecc_strength_good(struct mtd_info *mtd)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	struct nand_ecc_ctrl *ecc = &chip->ecc;
 	int corr, ds_corr;
 
@@ -4573,7 +4573,7 @@  static bool invalid_ecc_page_accessors(struct nand_chip *chip)
  */
 int nand_scan_tail(struct mtd_info *mtd)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	struct nand_ecc_ctrl *ecc = &chip->ecc;
 	struct nand_buffers *nbuf = NULL;
 	int ret;
@@ -4827,11 +4827,11 @@  int nand_scan_tail(struct mtd_info *mtd)
 	mtd->type = nand_is_slc(chip) ? MTD_NANDFLASH : MTD_MLCNANDFLASH;
 	mtd->flags = (chip->options & NAND_ROM) ? MTD_CAP_ROM :
 						MTD_CAP_NANDFLASH;
-	mtd->_erase = nand_erase;
+	mtd->_erase = nandc_erase;
 	mtd->_point = NULL;
 	mtd->_unpoint = NULL;
-	mtd->_read = nand_read;
-	mtd->_write = nand_write;
+	mtd->_read = nandc_read;
+	mtd->_write = nandc_write;
 	mtd->_panic_write = panic_nand_write;
 	mtd->_read_oob = nand_read_oob;
 	mtd->_write_oob = nand_write_oob;
@@ -4943,7 +4943,7 @@  void nand_cleanup(struct nand_chip *chip)
 void nand_release(struct mtd_info *mtd)
 {
 	mtd_device_unregister(mtd);
-	nand_cleanup(mtd_to_nand(mtd));
+	nand_cleanup(mtd_to_nandchip(mtd));
 }
 EXPORT_SYMBOL_GPL(nand_release);
 
diff --git a/drivers/mtd/nand/raw/nand_bbt.c b/drivers/mtd/nand/raw/nand_bbt.c
index 2915b67..396b248 100644
--- a/drivers/mtd/nand/raw/nand_bbt.c
+++ b/drivers/mtd/nand/raw/nand_bbt.c
@@ -172,7 +172,7 @@  static int read_bbt(struct mtd_info *mtd, uint8_t *buf, int page, int num,
 		struct nand_bbt_descr *td, int offs)
 {
 	int res, ret = 0, i, j, act = 0;
-	struct nand_chip *this = mtd_to_nand(mtd);
+	struct nand_chip *this = mtd_to_nandchip(mtd);
 	size_t retlen, len, totlen;
 	loff_t from;
 	int bits = td->options & NAND_BBT_NRBITS_MSK;
@@ -263,7 +263,7 @@  static int read_bbt(struct mtd_info *mtd, uint8_t *buf, int page, int num,
  */
 static int read_abs_bbt(struct mtd_info *mtd, uint8_t *buf, struct nand_bbt_descr *td, int chip)
 {
-	struct nand_chip *this = mtd_to_nand(mtd);
+	struct nand_chip *this = mtd_to_nandchip(mtd);
 	int res = 0, i;
 
 	if (td->options & NAND_BBT_PERCHIP) {
@@ -388,7 +388,7 @@  static u32 bbt_get_ver_offs(struct mtd_info *mtd, struct nand_bbt_descr *td)
 static void read_abs_bbts(struct mtd_info *mtd, uint8_t *buf,
 			  struct nand_bbt_descr *td, struct nand_bbt_descr *md)
 {
-	struct nand_chip *this = mtd_to_nand(mtd);
+	struct nand_chip *this = mtd_to_nandchip(mtd);
 
 	/* Read the primary version, if available */
 	if (td->options & NAND_BBT_VERSION) {
@@ -454,7 +454,7 @@  static int scan_block_fast(struct mtd_info *mtd, struct nand_bbt_descr *bd,
 static int create_bbt(struct mtd_info *mtd, uint8_t *buf,
 	struct nand_bbt_descr *bd, int chip)
 {
-	struct nand_chip *this = mtd_to_nand(mtd);
+	struct nand_chip *this = mtd_to_nandchip(mtd);
 	int i, numblocks, numpages;
 	int startblock;
 	loff_t from;
@@ -523,7 +523,7 @@  static int create_bbt(struct mtd_info *mtd, uint8_t *buf,
  */
 static int search_bbt(struct mtd_info *mtd, uint8_t *buf, struct nand_bbt_descr *td)
 {
-	struct nand_chip *this = mtd_to_nand(mtd);
+	struct nand_chip *this = mtd_to_nandchip(mtd);
 	int i, chips;
 	int startblock, block, dir;
 	int scanlen = mtd->writesize + mtd->oobsize;
@@ -683,7 +683,7 @@  static void mark_bbt_block_bad(struct nand_chip *this,
 			       struct nand_bbt_descr *td,
 			       int chip, int block)
 {
-	struct mtd_info *mtd = nand_to_mtd(this);
+	struct mtd_info *mtd = nandchip_to_mtd(this);
 	loff_t to;
 	int res;
 
@@ -712,7 +712,7 @@  static int write_bbt(struct mtd_info *mtd, uint8_t *buf,
 		     struct nand_bbt_descr *td, struct nand_bbt_descr *md,
 		     int chipsel)
 {
-	struct nand_chip *this = mtd_to_nand(mtd);
+	struct nand_chip *this = mtd_to_nandchip(mtd);
 	struct erase_info einfo;
 	int i, res, chip = 0;
 	int bits, page, offs, numblocks, sft, sftmsk;
@@ -896,7 +896,7 @@  static int write_bbt(struct mtd_info *mtd, uint8_t *buf,
  */
 static inline int nand_memory_bbt(struct mtd_info *mtd, struct nand_bbt_descr *bd)
 {
-	struct nand_chip *this = mtd_to_nand(mtd);
+	struct nand_chip *this = mtd_to_nandchip(mtd);
 
 	return create_bbt(mtd, this->buffers->databuf, bd, -1);
 }
@@ -915,7 +915,7 @@  static inline int nand_memory_bbt(struct mtd_info *mtd, struct nand_bbt_descr *b
 static int check_create(struct mtd_info *mtd, uint8_t *buf, struct nand_bbt_descr *bd)
 {
 	int i, chips, writeops, create, chipsel, res, res2;
-	struct nand_chip *this = mtd_to_nand(mtd);
+	struct nand_chip *this = mtd_to_nandchip(mtd);
 	struct nand_bbt_descr *td = this->bbt_td;
 	struct nand_bbt_descr *md = this->bbt_md;
 	struct nand_bbt_descr *rd, *rd2;
@@ -1039,7 +1039,7 @@  static int check_create(struct mtd_info *mtd, uint8_t *buf, struct nand_bbt_desc
  */
 static void mark_bbt_region(struct mtd_info *mtd, struct nand_bbt_descr *td)
 {
-	struct nand_chip *this = mtd_to_nand(mtd);
+	struct nand_chip *this = mtd_to_nandchip(mtd);
 	int i, j, chips, block, nrblocks, update;
 	uint8_t oldval;
 
@@ -1099,7 +1099,7 @@  static void mark_bbt_region(struct mtd_info *mtd, struct nand_bbt_descr *td)
  */
 static void verify_bbt_descr(struct mtd_info *mtd, struct nand_bbt_descr *bd)
 {
-	struct nand_chip *this = mtd_to_nand(mtd);
+	struct nand_chip *this = mtd_to_nandchip(mtd);
 	u32 pattern_len;
 	u32 bits;
 	u32 table_size;
@@ -1151,7 +1151,7 @@  static void verify_bbt_descr(struct mtd_info *mtd, struct nand_bbt_descr *bd)
  */
 static int nand_scan_bbt(struct mtd_info *mtd, struct nand_bbt_descr *bd)
 {
-	struct nand_chip *this = mtd_to_nand(mtd);
+	struct nand_chip *this = mtd_to_nandchip(mtd);
 	int len, res;
 	uint8_t *buf;
 	struct nand_bbt_descr *td = this->bbt_td;
@@ -1224,7 +1224,7 @@  static int nand_scan_bbt(struct mtd_info *mtd, struct nand_bbt_descr *bd)
  */
 static int nand_update_bbt(struct mtd_info *mtd, loff_t offs)
 {
-	struct nand_chip *this = mtd_to_nand(mtd);
+	struct nand_chip *this = mtd_to_nandchip(mtd);
 	int len, res = 0;
 	int chip, chipsel;
 	uint8_t *buf;
@@ -1358,7 +1358,7 @@  static int nand_create_badblock_pattern(struct nand_chip *this)
  */
 int nand_default_bbt(struct mtd_info *mtd)
 {
-	struct nand_chip *this = mtd_to_nand(mtd);
+	struct nand_chip *this = mtd_to_nandchip(mtd);
 	int ret;
 
 	/* Is a flash based bad block table requested? */
@@ -1394,7 +1394,7 @@  int nand_default_bbt(struct mtd_info *mtd)
  */
 int nand_isreserved_bbt(struct mtd_info *mtd, loff_t offs)
 {
-	struct nand_chip *this = mtd_to_nand(mtd);
+	struct nand_chip *this = mtd_to_nandchip(mtd);
 	int block;
 
 	block = (int)(offs >> this->bbt_erase_shift);
@@ -1409,7 +1409,7 @@  int nand_isreserved_bbt(struct mtd_info *mtd, loff_t offs)
  */
 int nand_isbad_bbt(struct mtd_info *mtd, loff_t offs, int allowbbt)
 {
-	struct nand_chip *this = mtd_to_nand(mtd);
+	struct nand_chip *this = mtd_to_nandchip(mtd);
 	int block, res;
 
 	block = (int)(offs >> this->bbt_erase_shift);
@@ -1436,7 +1436,7 @@  int nand_isbad_bbt(struct mtd_info *mtd, loff_t offs, int allowbbt)
  */
 int nand_markbad_bbt(struct mtd_info *mtd, loff_t offs)
 {
-	struct nand_chip *this = mtd_to_nand(mtd);
+	struct nand_chip *this = mtd_to_nandchip(mtd);
 	int block, ret = 0;
 
 	block = (int)(offs >> this->bbt_erase_shift);
diff --git a/drivers/mtd/nand/raw/nand_bch.c b/drivers/mtd/nand/raw/nand_bch.c
index 505441c..b1901d9 100644
--- a/drivers/mtd/nand/raw/nand_bch.c
+++ b/drivers/mtd/nand/raw/nand_bch.c
@@ -50,7 +50,7 @@  struct nand_bch_control {
 int nand_bch_calculate_ecc(struct mtd_info *mtd, const unsigned char *buf,
 			   unsigned char *code)
 {
-	const struct nand_chip *chip = mtd_to_nand(mtd);
+	const struct nand_chip *chip = mtd_to_nandchip(mtd);
 	struct nand_bch_control *nbc = chip->ecc.priv;
 	unsigned int i;
 
@@ -77,7 +77,7 @@  int nand_bch_calculate_ecc(struct mtd_info *mtd, const unsigned char *buf,
 int nand_bch_correct_data(struct mtd_info *mtd, unsigned char *buf,
 			  unsigned char *read_ecc, unsigned char *calc_ecc)
 {
-	const struct nand_chip *chip = mtd_to_nand(mtd);
+	const struct nand_chip *chip = mtd_to_nandchip(mtd);
 	struct nand_bch_control *nbc = chip->ecc.priv;
 	unsigned int *errloc = nbc->errloc;
 	int i, count;
@@ -120,7 +120,7 @@  int nand_bch_correct_data(struct mtd_info *mtd, unsigned char *buf,
  */
 struct nand_bch_control *nand_bch_init(struct mtd_info *mtd)
 {
-	struct nand_chip *nand = mtd_to_nand(mtd);
+	struct nand_chip *nand = mtd_to_nandchip(mtd);
 	unsigned int m, t, eccsteps, i;
 	struct nand_bch_control *nbc = NULL;
 	unsigned char *erased_page;
diff --git a/drivers/mtd/nand/raw/nand_ecc.c b/drivers/mtd/nand/raw/nand_ecc.c
index 7613a03..741b68a 100644
--- a/drivers/mtd/nand/raw/nand_ecc.c
+++ b/drivers/mtd/nand/raw/nand_ecc.c
@@ -424,7 +424,7 @@  int nand_calculate_ecc(struct mtd_info *mtd, const unsigned char *buf,
 		       unsigned char *code)
 {
 	__nand_calculate_ecc(buf,
-			mtd_to_nand(mtd)->ecc.size, code);
+			mtd_to_nandchip(mtd)->ecc.size, code);
 
 	return 0;
 }
@@ -524,7 +524,7 @@  int nand_correct_data(struct mtd_info *mtd, unsigned char *buf,
 		      unsigned char *read_ecc, unsigned char *calc_ecc)
 {
 	return __nand_correct_data(buf, read_ecc, calc_ecc,
-				   mtd_to_nand(mtd)->ecc.size);
+				   mtd_to_nandchip(mtd)->ecc.size);
 }
 EXPORT_SYMBOL(nand_correct_data);
 
diff --git a/drivers/mtd/nand/raw/nand_hynix.c b/drivers/mtd/nand/raw/nand_hynix.c
index b735cc8..b35a0a5 100644
--- a/drivers/mtd/nand/raw/nand_hynix.c
+++ b/drivers/mtd/nand/raw/nand_hynix.c
@@ -67,7 +67,7 @@  struct hynix_read_retry_otp {
 
 static bool hynix_nand_has_valid_jedecid(struct nand_chip *chip)
 {
-	struct mtd_info *mtd = nand_to_mtd(chip);
+	struct mtd_info *mtd = nandchip_to_mtd(chip);
 	u8 jedecid[6] = { };
 	int i = 0;
 
@@ -80,7 +80,7 @@  static bool hynix_nand_has_valid_jedecid(struct nand_chip *chip)
 
 static int hynix_nand_setup_read_retry(struct mtd_info *mtd, int retry_mode)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	struct hynix_nand *hynix = nand_get_manufacturer_data(chip);
 	const u8 *values;
 	int status;
@@ -172,7 +172,7 @@  static int hynix_read_rr_otp(struct nand_chip *chip,
 			     const struct hynix_read_retry_otp *info,
 			     void *buf)
 {
-	struct mtd_info *mtd = nand_to_mtd(chip);
+	struct mtd_info *mtd = nandchip_to_mtd(chip);
 	int i;
 
 	chip->cmdfunc(mtd, NAND_CMD_RESET, -1, -1);
@@ -365,7 +365,7 @@  static int hynix_nand_rr_init(struct nand_chip *chip)
 static void hynix_nand_extract_oobsize(struct nand_chip *chip,
 				       bool valid_jedecid)
 {
-	struct mtd_info *mtd = nand_to_mtd(chip);
+	struct mtd_info *mtd = nandchip_to_mtd(chip);
 	u8 oobsize;
 
 	oobsize = ((chip->id.data[3] >> 2) & 0x3) |
@@ -543,7 +543,7 @@  static void hynix_nand_extract_scrambling_requirements(struct nand_chip *chip,
 
 static void hynix_nand_decode_id(struct nand_chip *chip)
 {
-	struct mtd_info *mtd = nand_to_mtd(chip);
+	struct mtd_info *mtd = nandchip_to_mtd(chip);
 	bool valid_jedecid;
 	u8 tmp;
 
diff --git a/drivers/mtd/nand/raw/nand_micron.c b/drivers/mtd/nand/raw/nand_micron.c
index 02c4c1f..6dd0876 100644
--- a/drivers/mtd/nand/raw/nand_micron.c
+++ b/drivers/mtd/nand/raw/nand_micron.c
@@ -45,7 +45,7 @@  struct nand_onfi_vendor_micron {
 
 static int micron_nand_setup_read_retry(struct mtd_info *mtd, int retry_mode)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	u8 feature[ONFI_SUBFEATURE_PARAM_LEN] = {retry_mode};
 
 	return chip->onfi_set_features(mtd, chip, ONFI_FEATURE_ADDR_READ_RETRY,
@@ -108,7 +108,7 @@  static int micron_nand_on_die_ecc_setup(struct nand_chip *chip, bool enable)
 	if (enable)
 		feature[0] |= ONFI_FEATURE_ON_DIE_ECC_EN;
 
-	return chip->onfi_set_features(nand_to_mtd(chip), chip,
+	return chip->onfi_set_features(nandchip_to_mtd(chip), chip,
 				       ONFI_FEATURE_ON_DIE_ECC, feature);
 }
 
@@ -229,7 +229,7 @@  static int micron_supports_on_die_ecc(struct nand_chip *chip)
 	if (ret)
 		return MICRON_ON_DIE_UNSUPPORTED;
 
-	chip->onfi_get_features(nand_to_mtd(chip), chip,
+	chip->onfi_get_features(nandchip_to_mtd(chip), chip,
 				ONFI_FEATURE_ON_DIE_ECC, feature);
 	if ((feature[0] & ONFI_FEATURE_ON_DIE_ECC_EN) == 0)
 		return MICRON_ON_DIE_UNSUPPORTED;
@@ -238,7 +238,7 @@  static int micron_supports_on_die_ecc(struct nand_chip *chip)
 	if (ret)
 		return MICRON_ON_DIE_UNSUPPORTED;
 
-	chip->onfi_get_features(nand_to_mtd(chip), chip,
+	chip->onfi_get_features(nandchip_to_mtd(chip), chip,
 				ONFI_FEATURE_ON_DIE_ECC, feature);
 	if (feature[0] & ONFI_FEATURE_ON_DIE_ECC_EN)
 		return MICRON_ON_DIE_MANDATORY;
@@ -255,7 +255,7 @@  static int micron_supports_on_die_ecc(struct nand_chip *chip)
 
 static int micron_nand_init(struct nand_chip *chip)
 {
-	struct mtd_info *mtd = nand_to_mtd(chip);
+	struct mtd_info *mtd = nandchip_to_mtd(chip);
 	int ondie;
 	int ret;
 
diff --git a/drivers/mtd/nand/raw/nand_samsung.c b/drivers/mtd/nand/raw/nand_samsung.c
index ca17b44..bc54b578 100644
--- a/drivers/mtd/nand/raw/nand_samsung.c
+++ b/drivers/mtd/nand/raw/nand_samsung.c
@@ -19,7 +19,7 @@ 
 
 static void samsung_nand_decode_id(struct nand_chip *chip)
 {
-	struct mtd_info *mtd = nand_to_mtd(chip);
+	struct mtd_info *mtd = nandchip_to_mtd(chip);
 
 	/* New Samsung (6 byte ID): Samsung K9GAG08U0F (p.44) */
 	if (chip->id.len == 6 && !nand_is_slc(chip) &&
@@ -93,7 +93,7 @@  static void samsung_nand_decode_id(struct nand_chip *chip)
 
 static int samsung_nand_init(struct nand_chip *chip)
 {
-	struct mtd_info *mtd = nand_to_mtd(chip);
+	struct mtd_info *mtd = nandchip_to_mtd(chip);
 
 	if (mtd->writesize > 512)
 		chip->options |= NAND_SAMSUNG_LP_OPTIONS;
diff --git a/drivers/mtd/nand/raw/nand_toshiba.c b/drivers/mtd/nand/raw/nand_toshiba.c
index 57df857..8a24ccc 100644
--- a/drivers/mtd/nand/raw/nand_toshiba.c
+++ b/drivers/mtd/nand/raw/nand_toshiba.c
@@ -19,7 +19,7 @@ 
 
 static void toshiba_nand_decode_id(struct nand_chip *chip)
 {
-	struct mtd_info *mtd = nand_to_mtd(chip);
+	struct mtd_info *mtd = nandchip_to_mtd(chip);
 
 	nand_decode_ext_id(chip);
 
diff --git a/drivers/mtd/nand/raw/nandsim.c b/drivers/mtd/nand/raw/nandsim.c
index 5ba4635..a0246fc 100644
--- a/drivers/mtd/nand/raw/nandsim.c
+++ b/drivers/mtd/nand/raw/nandsim.c
@@ -662,7 +662,7 @@  static char __init *get_partition_name(int i)
  */
 static int __init init_nandsim(struct mtd_info *mtd)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	struct nandsim   *ns   = nand_get_controller_data(chip);
 	int i, ret = 0;
 	uint64_t remains;
@@ -1892,7 +1892,7 @@  static void switch_state(struct nandsim *ns)
 
 static u_char ns_nand_read_byte(struct mtd_info *mtd)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	struct nandsim *ns = nand_get_controller_data(chip);
 	u_char outb = 0x00;
 
@@ -1954,7 +1954,7 @@  static u_char ns_nand_read_byte(struct mtd_info *mtd)
 
 static void ns_nand_write_byte(struct mtd_info *mtd, u_char byte)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	struct nandsim *ns = nand_get_controller_data(chip);
 
 	/* Sanity and correctness checks */
@@ -2109,7 +2109,7 @@  static void ns_nand_write_byte(struct mtd_info *mtd, u_char byte)
 
 static void ns_hwcontrol(struct mtd_info *mtd, int cmd, unsigned int bitmask)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	struct nandsim *ns = nand_get_controller_data(chip);
 
 	ns->lines.cle = bitmask & NAND_CLE ? 1 : 0;
@@ -2128,7 +2128,7 @@  static int ns_device_ready(struct mtd_info *mtd)
 
 static uint16_t ns_nand_read_word(struct mtd_info *mtd)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 
 	NS_DBG("read_word\n");
 
@@ -2137,7 +2137,7 @@  static uint16_t ns_nand_read_word(struct mtd_info *mtd)
 
 static void ns_nand_write_buf(struct mtd_info *mtd, const u_char *buf, int len)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	struct nandsim *ns = nand_get_controller_data(chip);
 
 	/* Check that chip is expecting data input */
@@ -2165,7 +2165,7 @@  static void ns_nand_write_buf(struct mtd_info *mtd, const u_char *buf, int len)
 
 static void ns_nand_read_buf(struct mtd_info *mtd, u_char *buf, int len)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	struct nandsim *ns = nand_get_controller_data(chip);
 
 	/* Sanity and correctness checks */
@@ -2187,7 +2187,7 @@  static void ns_nand_read_buf(struct mtd_info *mtd, u_char *buf, int len)
 		int i;
 
 		for (i = 0; i < len; i++)
-			buf[i] = mtd_to_nand(mtd)->read_byte(mtd);
+			buf[i] = mtd_to_nandchip(mtd)->read_byte(mtd);
 
 		return;
 	}
@@ -2231,7 +2231,7 @@  static int __init ns_init_module(void)
 		NS_ERR("unable to allocate core structures.\n");
 		return -ENOMEM;
 	}
-	nsmtd       = nand_to_mtd(chip);
+	nsmtd       = nandchip_to_mtd(chip);
 	nand        = (struct nandsim *)(chip + 1);
 	nand_set_controller_data(chip, (void *)nand);
 
@@ -2391,7 +2391,7 @@  static int __init ns_init_module(void)
  */
 static void __exit ns_cleanup_module(void)
 {
-	struct nand_chip *chip = mtd_to_nand(nsmtd);
+	struct nand_chip *chip = mtd_to_nandchip(nsmtd);
 	struct nandsim *ns = nand_get_controller_data(chip);
 	int i;
 
@@ -2400,7 +2400,7 @@  static void __exit ns_cleanup_module(void)
 	nand_release(nsmtd); /* Unregister driver */
 	for (i = 0;i < ARRAY_SIZE(ns->partitions); ++i)
 		kfree(ns->partitions[i].name);
-	kfree(mtd_to_nand(nsmtd));        /* Free other structures */
+	kfree(mtd_to_nandchip(nsmtd));        /* Free other structures */
 	free_lists();
 }
 
diff --git a/drivers/mtd/nand/raw/ndfc.c b/drivers/mtd/nand/raw/ndfc.c
index d8a8068..3b9ecbe 100644
--- a/drivers/mtd/nand/raw/ndfc.c
+++ b/drivers/mtd/nand/raw/ndfc.c
@@ -47,7 +47,7 @@  struct ndfc_controller {
 static void ndfc_select_chip(struct mtd_info *mtd, int chip)
 {
 	uint32_t ccr;
-	struct nand_chip *nchip = mtd_to_nand(mtd);
+	struct nand_chip *nchip = mtd_to_nandchip(mtd);
 	struct ndfc_controller *ndfc = nand_get_controller_data(nchip);
 
 	ccr = in_be32(ndfc->ndfcbase + NDFC_CCR);
@@ -61,7 +61,7 @@  static void ndfc_select_chip(struct mtd_info *mtd, int chip)
 
 static void ndfc_hwcontrol(struct mtd_info *mtd, int cmd, unsigned int ctrl)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	struct ndfc_controller *ndfc = nand_get_controller_data(chip);
 
 	if (cmd == NAND_CMD_NONE)
@@ -75,7 +75,7 @@  static void ndfc_hwcontrol(struct mtd_info *mtd, int cmd, unsigned int ctrl)
 
 static int ndfc_ready(struct mtd_info *mtd)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	struct ndfc_controller *ndfc = nand_get_controller_data(chip);
 
 	return in_be32(ndfc->ndfcbase + NDFC_STAT) & NDFC_STAT_IS_READY;
@@ -84,7 +84,7 @@  static int ndfc_ready(struct mtd_info *mtd)
 static void ndfc_enable_hwecc(struct mtd_info *mtd, int mode)
 {
 	uint32_t ccr;
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	struct ndfc_controller *ndfc = nand_get_controller_data(chip);
 
 	ccr = in_be32(ndfc->ndfcbase + NDFC_CCR);
@@ -96,7 +96,7 @@  static void ndfc_enable_hwecc(struct mtd_info *mtd, int mode)
 static int ndfc_calculate_ecc(struct mtd_info *mtd,
 			      const u_char *dat, u_char *ecc_code)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	struct ndfc_controller *ndfc = nand_get_controller_data(chip);
 	uint32_t ecc;
 	uint8_t *p = (uint8_t *)&ecc;
@@ -120,7 +120,7 @@  static int ndfc_calculate_ecc(struct mtd_info *mtd,
  */
 static void ndfc_read_buf(struct mtd_info *mtd, uint8_t *buf, int len)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	struct ndfc_controller *ndfc = nand_get_controller_data(chip);
 	uint32_t *p = (uint32_t *) buf;
 
@@ -130,7 +130,7 @@  static void ndfc_read_buf(struct mtd_info *mtd, uint8_t *buf, int len)
 
 static void ndfc_write_buf(struct mtd_info *mtd, const uint8_t *buf, int len)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	struct ndfc_controller *ndfc = nand_get_controller_data(chip);
 	uint32_t *p = (uint32_t *) buf;
 
@@ -146,7 +146,7 @@  static int ndfc_chip_init(struct ndfc_controller *ndfc,
 {
 	struct device_node *flash_np;
 	struct nand_chip *chip = &ndfc->chip;
-	struct mtd_info *mtd = nand_to_mtd(chip);
+	struct mtd_info *mtd = nandchip_to_mtd(chip);
 	int ret;
 
 	chip->IO_ADDR_R = ndfc->ndfcbase + NDFC_DATA;
@@ -256,7 +256,7 @@  static int ndfc_probe(struct platform_device *ofdev)
 static int ndfc_remove(struct platform_device *ofdev)
 {
 	struct ndfc_controller *ndfc = dev_get_drvdata(&ofdev->dev);
-	struct mtd_info *mtd = nand_to_mtd(&ndfc->chip);
+	struct mtd_info *mtd = nandchip_to_mtd(&ndfc->chip);
 
 	nand_release(mtd);
 	kfree(mtd->name);
diff --git a/drivers/mtd/nand/raw/nuc900_nand.c b/drivers/mtd/nand/raw/nuc900_nand.c
index 7bb4d2e..2a2bfce 100644
--- a/drivers/mtd/nand/raw/nuc900_nand.c
+++ b/drivers/mtd/nand/raw/nuc900_nand.c
@@ -63,7 +63,7 @@  struct nuc900_nand {
 
 static inline struct nuc900_nand *mtd_to_nuc900(struct mtd_info *mtd)
 {
-	return container_of(mtd_to_nand(mtd), struct nuc900_nand, chip);
+	return container_of(mtd_to_nandchip(mtd), struct nuc900_nand, chip);
 }
 
 static const struct mtd_partition partitions[] = {
@@ -132,7 +132,7 @@  static int nuc900_nand_devready(struct mtd_info *mtd)
 static void nuc900_nand_command_lp(struct mtd_info *mtd, unsigned int command,
 				   int column, int page_addr)
 {
-	register struct nand_chip *chip = mtd_to_nand(mtd);
+	register struct nand_chip *chip = mtd_to_nandchip(mtd);
 	struct nuc900_nand *nand = mtd_to_nuc900(mtd);
 
 	if (command == NAND_CMD_READOOB) {
@@ -243,7 +243,7 @@  static int nuc900_nand_probe(struct platform_device *pdev)
 	if (!nuc900_nand)
 		return -ENOMEM;
 	chip = &(nuc900_nand->chip);
-	mtd = nand_to_mtd(chip);
+	mtd = nandchip_to_mtd(chip);
 
 	mtd->dev.parent		= &pdev->dev;
 	spin_lock_init(&nuc900_nand->lock);
@@ -284,7 +284,7 @@  static int nuc900_nand_remove(struct platform_device *pdev)
 {
 	struct nuc900_nand *nuc900_nand = platform_get_drvdata(pdev);
 
-	nand_release(nand_to_mtd(&nuc900_nand->chip));
+	nand_release(nandchip_to_mtd(&nuc900_nand->chip));
 	clk_disable(nuc900_nand->clk);
 
 	return 0;
diff --git a/drivers/mtd/nand/raw/omap2.c b/drivers/mtd/nand/raw/omap2.c
index 54540c8..d8ec8a3 100644
--- a/drivers/mtd/nand/raw/omap2.c
+++ b/drivers/mtd/nand/raw/omap2.c
@@ -184,7 +184,7 @@  struct omap_nand_info {
 
 static inline struct omap_nand_info *mtd_to_omap(struct mtd_info *mtd)
 {
-	return container_of(mtd_to_nand(mtd), struct omap_nand_info, nand);
+	return container_of(mtd_to_nandchip(mtd), struct omap_nand_info, nand);
 }
 
 /**
@@ -279,7 +279,7 @@  static void omap_hwcontrol(struct mtd_info *mtd, int cmd, unsigned int ctrl)
  */
 static void omap_read_buf8(struct mtd_info *mtd, u_char *buf, int len)
 {
-	struct nand_chip *nand = mtd_to_nand(mtd);
+	struct nand_chip *nand = mtd_to_nandchip(mtd);
 
 	ioread8_rep(nand->IO_ADDR_R, buf, len);
 }
@@ -313,7 +313,7 @@  static void omap_write_buf8(struct mtd_info *mtd, const u_char *buf, int len)
  */
 static void omap_read_buf16(struct mtd_info *mtd, u_char *buf, int len)
 {
-	struct nand_chip *nand = mtd_to_nand(mtd);
+	struct nand_chip *nand = mtd_to_nandchip(mtd);
 
 	ioread16_rep(nand->IO_ADDR_R, buf, len / 2);
 }
@@ -944,7 +944,7 @@  static int omap_calculate_ecc(struct mtd_info *mtd, const u_char *dat,
 static void omap_enable_hwecc(struct mtd_info *mtd, int mode)
 {
 	struct omap_nand_info *info = mtd_to_omap(mtd);
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	unsigned int dev_width = (chip->options & NAND_BUSWIDTH_16) ? 1 : 0;
 	u32 val;
 
@@ -990,7 +990,7 @@  static void omap_enable_hwecc(struct mtd_info *mtd, int mode)
  */
 static int omap_wait(struct mtd_info *mtd, struct nand_chip *chip)
 {
-	struct nand_chip *this = mtd_to_nand(mtd);
+	struct nand_chip *this = mtd_to_nandchip(mtd);
 	struct omap_nand_info *info = mtd_to_omap(mtd);
 	unsigned long timeo = jiffies;
 	int status, state = this->state;
@@ -1042,7 +1042,7 @@  static void __maybe_unused omap_enable_hwecc_bch(struct mtd_info *mtd, int mode)
 	unsigned int dev_width, nsectors;
 	struct omap_nand_info *info = mtd_to_omap(mtd);
 	enum omap_ecc ecc_opt = info->ecc_opt;
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	u32 val, wr_mode;
 	unsigned int ecc_size1, ecc_size0;
 
@@ -1757,7 +1757,7 @@  static int omap_ooblayout_free(struct mtd_info *mtd, int section,
 static int omap_sw_ooblayout_ecc(struct mtd_info *mtd, int section,
 				 struct mtd_oob_region *oobregion)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	int off = BADBLOCK_MARKER_LENGTH;
 
 	if (section >= chip->ecc.steps)
@@ -1776,7 +1776,7 @@  static int omap_sw_ooblayout_ecc(struct mtd_info *mtd, int section,
 static int omap_sw_ooblayout_free(struct mtd_info *mtd, int section,
 				  struct mtd_oob_region *oobregion)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	int off = BADBLOCK_MARKER_LENGTH;
 
 	if (section)
@@ -1851,7 +1851,7 @@  static int omap_nand_probe(struct platform_device *pdev)
 	}
 
 	nand_chip		= &info->nand;
-	mtd			= nand_to_mtd(nand_chip);
+	mtd			= nandchip_to_mtd(nand_chip);
 	mtd->dev.parent		= &pdev->dev;
 	nand_chip->ecc.priv	= NULL;
 	nand_set_flash_node(nand_chip, dev->of_node);
@@ -2189,7 +2189,7 @@  static int omap_nand_probe(struct platform_device *pdev)
 static int omap_nand_remove(struct platform_device *pdev)
 {
 	struct mtd_info *mtd = platform_get_drvdata(pdev);
-	struct nand_chip *nand_chip = mtd_to_nand(mtd);
+	struct nand_chip *nand_chip = mtd_to_nandchip(mtd);
 	struct omap_nand_info *info = mtd_to_omap(mtd);
 	if (nand_chip->ecc.priv) {
 		nand_bch_free(nand_chip->ecc.priv);
diff --git a/drivers/mtd/nand/raw/orion_nand.c b/drivers/mtd/nand/raw/orion_nand.c
index ae4c0be..24f35fa 100644
--- a/drivers/mtd/nand/raw/orion_nand.c
+++ b/drivers/mtd/nand/raw/orion_nand.c
@@ -30,7 +30,7 @@  struct orion_nand_info {
 
 static void orion_nand_cmd_ctrl(struct mtd_info *mtd, int cmd, unsigned int ctrl)
 {
-	struct nand_chip *nc = mtd_to_nand(mtd);
+	struct nand_chip *nc = mtd_to_nandchip(mtd);
 	struct orion_nand_data *board = nand_get_controller_data(nc);
 	u32 offs;
 
@@ -52,7 +52,7 @@  static void orion_nand_cmd_ctrl(struct mtd_info *mtd, int cmd, unsigned int ctrl
 
 static void orion_nand_read_buf(struct mtd_info *mtd, uint8_t *buf, int len)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	void __iomem *io_base = chip->IO_ADDR_R;
 	uint64_t *buf64;
 	int i = 0;
@@ -95,7 +95,7 @@  static int __init orion_nand_probe(struct platform_device *pdev)
 	if (!info)
 		return -ENOMEM;
 	nc = &info->chip;
-	mtd = nand_to_mtd(nc);
+	mtd = nandchip_to_mtd(nc);
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	io_base = devm_ioremap_resource(&pdev->dev, res);
@@ -190,7 +190,7 @@  static int orion_nand_remove(struct platform_device *pdev)
 {
 	struct orion_nand_info *info = platform_get_drvdata(pdev);
 	struct nand_chip *chip = &info->chip;
-	struct mtd_info *mtd = nand_to_mtd(chip);
+	struct mtd_info *mtd = nandchip_to_mtd(chip);
 
 	nand_release(mtd);
 
diff --git a/drivers/mtd/nand/raw/oxnas_nand.c b/drivers/mtd/nand/raw/oxnas_nand.c
index f14eec3..27eeee3 100644
--- a/drivers/mtd/nand/raw/oxnas_nand.c
+++ b/drivers/mtd/nand/raw/oxnas_nand.c
@@ -40,7 +40,7 @@  struct oxnas_nand_ctrl {
 
 static uint8_t oxnas_nand_read_byte(struct mtd_info *mtd)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	struct oxnas_nand_ctrl *oxnas = nand_get_controller_data(chip);
 
 	return readb(oxnas->io_base);
@@ -48,7 +48,7 @@  static uint8_t oxnas_nand_read_byte(struct mtd_info *mtd)
 
 static void oxnas_nand_read_buf(struct mtd_info *mtd, u8 *buf, int len)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	struct oxnas_nand_ctrl *oxnas = nand_get_controller_data(chip);
 
 	ioread8_rep(oxnas->io_base, buf, len);
@@ -56,7 +56,7 @@  static void oxnas_nand_read_buf(struct mtd_info *mtd, u8 *buf, int len)
 
 static void oxnas_nand_write_buf(struct mtd_info *mtd, const u8 *buf, int len)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	struct oxnas_nand_ctrl *oxnas = nand_get_controller_data(chip);
 
 	iowrite8_rep(oxnas->io_base, buf, len);
@@ -66,7 +66,7 @@  static void oxnas_nand_write_buf(struct mtd_info *mtd, const u8 *buf, int len)
 static void oxnas_nand_cmd_ctrl(struct mtd_info *mtd, int cmd,
 				unsigned int ctrl)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	struct oxnas_nand_ctrl *oxnas = nand_get_controller_data(chip);
 
 	if (ctrl & NAND_CLE)
@@ -126,7 +126,7 @@  static int oxnas_nand_probe(struct platform_device *pdev)
 		nand_set_flash_node(chip, nand_np);
 		nand_set_controller_data(chip, oxnas);
 
-		mtd = nand_to_mtd(chip);
+		mtd = nandchip_to_mtd(chip);
 		mtd->dev.parent = &pdev->dev;
 		mtd->priv = chip;
 
@@ -165,7 +165,7 @@  static int oxnas_nand_remove(struct platform_device *pdev)
 	struct oxnas_nand_ctrl *oxnas = platform_get_drvdata(pdev);
 
 	if (oxnas->chips[0])
-		nand_release(nand_to_mtd(oxnas->chips[0]));
+		nand_release(nandchip_to_mtd(oxnas->chips[0]));
 
 	clk_disable_unprepare(oxnas->clk);
 
diff --git a/drivers/mtd/nand/raw/pasemi_nand.c b/drivers/mtd/nand/raw/pasemi_nand.c
index a47a7e4..7b69e3e 100644
--- a/drivers/mtd/nand/raw/pasemi_nand.c
+++ b/drivers/mtd/nand/raw/pasemi_nand.c
@@ -45,7 +45,7 @@ 
 
 static void pasemi_read_buf(struct mtd_info *mtd, u_char *buf, int len)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 
 	while (len > 0x800) {
 		memcpy_fromio(buf, chip->IO_ADDR_R, 0x800);
@@ -57,7 +57,7 @@  static void pasemi_read_buf(struct mtd_info *mtd, u_char *buf, int len)
 
 static void pasemi_write_buf(struct mtd_info *mtd, const u_char *buf, int len)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 
 	while (len > 0x800) {
 		memcpy_toio(chip->IO_ADDR_R, buf, 0x800);
@@ -70,7 +70,7 @@  static void pasemi_write_buf(struct mtd_info *mtd, const u_char *buf, int len)
 static void pasemi_hwcontrol(struct mtd_info *mtd, int cmd,
 			     unsigned int ctrl)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 
 	if (cmd == NAND_CMD_NONE)
 		return;
@@ -117,7 +117,7 @@  static int pasemi_nand_probe(struct platform_device *ofdev)
 		goto out;
 	}
 
-	pasemi_nand_mtd = nand_to_mtd(chip);
+	pasemi_nand_mtd = nandchip_to_mtd(chip);
 
 	/* Link the private data with the MTD structure */
 	pasemi_nand_mtd->dev.parent = dev;
@@ -188,7 +188,7 @@  static int pasemi_nand_remove(struct platform_device *ofdev)
 	if (!pasemi_nand_mtd)
 		return 0;
 
-	chip = mtd_to_nand(pasemi_nand_mtd);
+	chip = mtd_to_nandchip(pasemi_nand_mtd);
 
 	/* Release resources, unregister device */
 	nand_release(pasemi_nand_mtd);
diff --git a/drivers/mtd/nand/raw/plat_nand.c b/drivers/mtd/nand/raw/plat_nand.c
index 925a132..ba10bb1 100644
--- a/drivers/mtd/nand/raw/plat_nand.c
+++ b/drivers/mtd/nand/raw/plat_nand.c
@@ -57,7 +57,7 @@  static int plat_nand_probe(struct platform_device *pdev)
 		return PTR_ERR(data->io_base);
 
 	nand_set_flash_node(&data->chip, pdev->dev.of_node);
-	mtd = nand_to_mtd(&data->chip);
+	mtd = nandchip_to_mtd(&data->chip);
 	mtd->dev.parent = &pdev->dev;
 
 	data->chip.IO_ADDR_R = data->io_base;
@@ -114,7 +114,7 @@  static int plat_nand_remove(struct platform_device *pdev)
 	struct plat_nand_data *data = platform_get_drvdata(pdev);
 	struct platform_nand_data *pdata = dev_get_platdata(&pdev->dev);
 
-	nand_release(nand_to_mtd(&data->chip));
+	nand_release(nandchip_to_mtd(&data->chip));
 	if (pdata->ctrl.remove)
 		pdata->ctrl.remove(pdev);
 
diff --git a/drivers/mtd/nand/raw/pxa3xx_nand.c b/drivers/mtd/nand/raw/pxa3xx_nand.c
index fc4d35e..94d3976 100644
--- a/drivers/mtd/nand/raw/pxa3xx_nand.c
+++ b/drivers/mtd/nand/raw/pxa3xx_nand.c
@@ -326,7 +326,7 @@  struct pxa3xx_nand_flash {
 static int pxa3xx_ooblayout_ecc(struct mtd_info *mtd, int section,
 				struct mtd_oob_region *oobregion)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	struct pxa3xx_nand_host *host = nand_get_controller_data(chip);
 	struct pxa3xx_nand_info *info = host->info_data;
 	int nchunks = mtd->writesize / info->chunk_size;
@@ -344,7 +344,7 @@  static int pxa3xx_ooblayout_ecc(struct mtd_info *mtd, int section,
 static int pxa3xx_ooblayout_free(struct mtd_info *mtd, int section,
 				 struct mtd_oob_region *oobregion)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	struct pxa3xx_nand_host *host = nand_get_controller_data(chip);
 	struct pxa3xx_nand_info *info = host->info_data;
 	int nchunks = mtd->writesize / info->chunk_size;
@@ -509,7 +509,7 @@  static int pxa3xx_nand_init_timings_compat(struct pxa3xx_nand_host *host,
 	struct nand_chip *chip = &host->chip;
 	struct pxa3xx_nand_info *info = host->info_data;
 	const struct pxa3xx_nand_flash *f = NULL;
-	struct mtd_info *mtd = nand_to_mtd(&host->chip);
+	struct mtd_info *mtd = nandchip_to_mtd(&host->chip);
 	int i, id, ntypes;
 
 	ntypes = ARRAY_SIZE(builtin_flash_types);
@@ -931,7 +931,7 @@  static void set_command_address(struct pxa3xx_nand_info *info,
 static void prepare_start_command(struct pxa3xx_nand_info *info, int command)
 {
 	struct pxa3xx_nand_host *host = info->host[info->cs];
-	struct mtd_info *mtd = nand_to_mtd(&host->chip);
+	struct mtd_info *mtd = nandchip_to_mtd(&host->chip);
 
 	/* reset data and oob column point to handle data */
 	info->buf_start		= 0;
@@ -984,7 +984,7 @@  static int prepare_set_command(struct pxa3xx_nand_info *info, int command,
 	struct mtd_info *mtd;
 
 	host = info->host[info->cs];
-	mtd = nand_to_mtd(&host->chip);
+	mtd = nandchip_to_mtd(&host->chip);
 	addr_cycle = 0;
 	exec_cmd = 1;
 
@@ -1168,7 +1168,7 @@  static int prepare_set_command(struct pxa3xx_nand_info *info, int command,
 static void nand_cmdfunc(struct mtd_info *mtd, unsigned command,
 			 int column, int page_addr)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	struct pxa3xx_nand_host *host = nand_get_controller_data(chip);
 	struct pxa3xx_nand_info *info = host->info_data;
 	int exec_cmd;
@@ -1217,7 +1217,7 @@  static void nand_cmdfunc_extended(struct mtd_info *mtd,
 				  const unsigned command,
 				  int column, int page_addr)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	struct pxa3xx_nand_host *host = nand_get_controller_data(chip);
 	struct pxa3xx_nand_info *info = host->info_data;
 	int exec_cmd, ext_cmd_type;
@@ -1373,7 +1373,7 @@  static int pxa3xx_nand_read_page_hwecc(struct mtd_info *mtd,
 
 static uint8_t pxa3xx_nand_read_byte(struct mtd_info *mtd)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	struct pxa3xx_nand_host *host = nand_get_controller_data(chip);
 	struct pxa3xx_nand_info *info = host->info_data;
 	char retval = 0xFF;
@@ -1387,7 +1387,7 @@  static uint8_t pxa3xx_nand_read_byte(struct mtd_info *mtd)
 
 static u16 pxa3xx_nand_read_word(struct mtd_info *mtd)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	struct pxa3xx_nand_host *host = nand_get_controller_data(chip);
 	struct pxa3xx_nand_info *info = host->info_data;
 	u16 retval = 0xFFFF;
@@ -1401,7 +1401,7 @@  static u16 pxa3xx_nand_read_word(struct mtd_info *mtd)
 
 static void pxa3xx_nand_read_buf(struct mtd_info *mtd, uint8_t *buf, int len)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	struct pxa3xx_nand_host *host = nand_get_controller_data(chip);
 	struct pxa3xx_nand_info *info = host->info_data;
 	int real_len = min_t(size_t, len, info->buf_count - info->buf_start);
@@ -1413,7 +1413,7 @@  static void pxa3xx_nand_read_buf(struct mtd_info *mtd, uint8_t *buf, int len)
 static void pxa3xx_nand_write_buf(struct mtd_info *mtd,
 		const uint8_t *buf, int len)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	struct pxa3xx_nand_host *host = nand_get_controller_data(chip);
 	struct pxa3xx_nand_info *info = host->info_data;
 	int real_len = min_t(size_t, len, info->buf_count - info->buf_start);
@@ -1429,7 +1429,7 @@  static void pxa3xx_nand_select_chip(struct mtd_info *mtd, int chip)
 
 static int pxa3xx_nand_waitfunc(struct mtd_info *mtd, struct nand_chip *this)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	struct pxa3xx_nand_host *host = nand_get_controller_data(chip);
 	struct pxa3xx_nand_info *info = host->info_data;
 
@@ -1480,7 +1480,7 @@  static void pxa3xx_nand_config_tail(struct pxa3xx_nand_info *info)
 {
 	struct pxa3xx_nand_host *host = info->host[info->cs];
 	struct nand_chip *chip = &host->chip;
-	struct mtd_info *mtd = nand_to_mtd(chip);
+	struct mtd_info *mtd = nandchip_to_mtd(chip);
 
 	info->reg_ndcr |= (host->col_addr_cycles == 2) ? NDCR_RA_START : 0;
 	info->reg_ndcr |= (chip->page_shift == 6) ? NDCR_PG_PER_BLK : 0;
@@ -1569,7 +1569,7 @@  static int pxa_ecc_init(struct pxa3xx_nand_info *info,
 			struct mtd_info *mtd,
 			int strength, int ecc_stepsize, int page_size)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	struct nand_ecc_ctrl *ecc = &chip->ecc;
 
 	if (strength == 1 && ecc_stepsize == 512 && page_size == 2048) {
@@ -1651,7 +1651,7 @@  static int pxa_ecc_init(struct pxa3xx_nand_info *info,
 
 static int pxa3xx_nand_scan(struct mtd_info *mtd)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	struct pxa3xx_nand_host *host = nand_get_controller_data(chip);
 	struct pxa3xx_nand_info *info = host->info_data;
 	struct platform_device *pdev = info->pdev;
@@ -1792,7 +1792,7 @@  static int alloc_nand_resource(struct platform_device *pdev)
 		host = (void *)&info[1] + sizeof(*host) * cs;
 		chip = &host->chip;
 		nand_set_controller_data(chip, host);
-		mtd = nand_to_mtd(chip);
+		mtd = nandchip_to_mtd(chip);
 		info->host[cs] = host;
 		host->cs = cs;
 		host->info_data = info;
@@ -1912,7 +1912,7 @@  static int pxa3xx_nand_remove(struct platform_device *pdev)
 	clk_disable_unprepare(info->clk);
 
 	for (cs = 0; cs < pdata->num_cs; cs++)
-		nand_release(nand_to_mtd(&info->host[cs]->chip));
+		nand_release(nandchip_to_mtd(&info->host[cs]->chip));
 	return 0;
 }
 
@@ -1972,7 +1972,7 @@  static int pxa3xx_nand_probe(struct platform_device *pdev)
 	info = platform_get_drvdata(pdev);
 	probe_success = 0;
 	for (cs = 0; cs < pdata->num_cs; cs++) {
-		struct mtd_info *mtd = nand_to_mtd(&info->host[cs]->chip);
+		struct mtd_info *mtd = nandchip_to_mtd(&info->host[cs]->chip);
 
 		/*
 		 * The mtd name matches the one used in 'mtdparts' kernel
diff --git a/drivers/mtd/nand/raw/qcom_nandc.c b/drivers/mtd/nand/raw/qcom_nandc.c
index a77c66f..3b2d16b 100644
--- a/drivers/mtd/nand/raw/qcom_nandc.c
+++ b/drivers/mtd/nand/raw/qcom_nandc.c
@@ -873,7 +873,7 @@  static void post_command(struct qcom_nand_host *host, int command)
 static void qcom_nandc_command(struct mtd_info *mtd, unsigned int command,
 			       int column, int page_addr)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	struct qcom_nand_host *host = to_qcom_nand_host(chip);
 	struct nand_ecc_ctrl *ecc = &chip->ecc;
 	struct qcom_nand_controller *nandc = get_qcom_nand_controller(chip);
@@ -1008,7 +1008,7 @@  static int parse_read_errors(struct qcom_nand_host *host, u8 *data_buf,
 {
 	struct nand_chip *chip = &host->chip;
 	struct qcom_nand_controller *nandc = get_qcom_nand_controller(chip);
-	struct mtd_info *mtd = nand_to_mtd(chip);
+	struct mtd_info *mtd = nandchip_to_mtd(chip);
 	struct nand_ecc_ctrl *ecc = &chip->ecc;
 	unsigned int max_bitflips = 0;
 	struct read_stats *buf;
@@ -1481,7 +1481,7 @@  static int qcom_nandc_write_oob(struct mtd_info *mtd, struct nand_chip *chip,
 
 static int qcom_nandc_block_bad(struct mtd_info *mtd, loff_t ofs)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	struct qcom_nand_host *host = to_qcom_nand_host(chip);
 	struct qcom_nand_controller *nandc = get_qcom_nand_controller(chip);
 	struct nand_ecc_ctrl *ecc = &chip->ecc;
@@ -1521,7 +1521,7 @@  static int qcom_nandc_block_bad(struct mtd_info *mtd, loff_t ofs)
 
 static int qcom_nandc_block_markbad(struct mtd_info *mtd, loff_t ofs)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	struct qcom_nand_host *host = to_qcom_nand_host(chip);
 	struct qcom_nand_controller *nandc = get_qcom_nand_controller(chip);
 	struct nand_ecc_ctrl *ecc = &chip->ecc;
@@ -1571,7 +1571,7 @@  static int qcom_nandc_block_markbad(struct mtd_info *mtd, loff_t ofs)
  */
 static uint8_t qcom_nandc_read_byte(struct mtd_info *mtd)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	struct qcom_nand_host *host = to_qcom_nand_host(chip);
 	struct qcom_nand_controller *nandc = get_qcom_nand_controller(chip);
 	u8 *buf = nandc->data_buffer;
@@ -1593,7 +1593,7 @@  static uint8_t qcom_nandc_read_byte(struct mtd_info *mtd)
 
 static void qcom_nandc_read_buf(struct mtd_info *mtd, uint8_t *buf, int len)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	struct qcom_nand_controller *nandc = get_qcom_nand_controller(chip);
 	int real_len = min_t(size_t, len, nandc->buf_count - nandc->buf_start);
 
@@ -1604,7 +1604,7 @@  static void qcom_nandc_read_buf(struct mtd_info *mtd, uint8_t *buf, int len)
 static void qcom_nandc_write_buf(struct mtd_info *mtd, const uint8_t *buf,
 				 int len)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	struct qcom_nand_controller *nandc = get_qcom_nand_controller(chip);
 	int real_len = min_t(size_t, len, nandc->buf_count - nandc->buf_start);
 
@@ -1616,7 +1616,7 @@  static void qcom_nandc_write_buf(struct mtd_info *mtd, const uint8_t *buf,
 /* we support only one external chip for now */
 static void qcom_nandc_select_chip(struct mtd_info *mtd, int chipnr)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	struct qcom_nand_controller *nandc = get_qcom_nand_controller(chip);
 
 	if (chipnr <= 0)
@@ -1713,7 +1713,7 @@  static void qcom_nandc_select_chip(struct mtd_info *mtd, int chipnr)
 static int qcom_nand_ooblayout_ecc(struct mtd_info *mtd, int section,
 				   struct mtd_oob_region *oobregion)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	struct qcom_nand_host *host = to_qcom_nand_host(chip);
 	struct nand_ecc_ctrl *ecc = &chip->ecc;
 
@@ -1735,7 +1735,7 @@  static int qcom_nand_ooblayout_ecc(struct mtd_info *mtd, int section,
 static int qcom_nand_ooblayout_free(struct mtd_info *mtd, int section,
 				     struct mtd_oob_region *oobregion)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	struct qcom_nand_host *host = to_qcom_nand_host(chip);
 	struct nand_ecc_ctrl *ecc = &chip->ecc;
 
@@ -1756,7 +1756,7 @@  static int qcom_nand_ooblayout_free(struct mtd_info *mtd, int section,
 static int qcom_nand_host_setup(struct qcom_nand_host *host)
 {
 	struct nand_chip *chip = &host->chip;
-	struct mtd_info *mtd = nand_to_mtd(chip);
+	struct mtd_info *mtd = nandchip_to_mtd(chip);
 	struct nand_ecc_ctrl *ecc = &chip->ecc;
 	struct qcom_nand_controller *nandc = get_qcom_nand_controller(chip);
 	int cwperpage, bad_block_byte;
@@ -1988,7 +1988,7 @@  static int qcom_nand_host_init(struct qcom_nand_controller *nandc,
 			       struct device_node *dn)
 {
 	struct nand_chip *chip = &host->chip;
-	struct mtd_info *mtd = nand_to_mtd(chip);
+	struct mtd_info *mtd = nandchip_to_mtd(chip);
 	struct device *dev = nandc->dev;
 	int ret;
 
@@ -2152,7 +2152,7 @@  static int qcom_nandc_probe(struct platform_device *pdev)
 
 err_cs_init:
 	list_for_each_entry(host, &nandc->host_list, node)
-		nand_release(nand_to_mtd(&host->chip));
+		nand_release(nandchip_to_mtd(&host->chip));
 err_setup:
 	clk_disable_unprepare(nandc->aon_clk);
 err_aon_clk:
@@ -2169,7 +2169,7 @@  static int qcom_nandc_remove(struct platform_device *pdev)
 	struct qcom_nand_host *host;
 
 	list_for_each_entry(host, &nandc->host_list, node)
-		nand_release(nand_to_mtd(&host->chip));
+		nand_release(nandchip_to_mtd(&host->chip));
 
 	qcom_nandc_unalloc(nandc);
 
diff --git a/drivers/mtd/nand/raw/r852.c b/drivers/mtd/nand/raw/r852.c
index fc9287a..6ac7b95 100644
--- a/drivers/mtd/nand/raw/r852.c
+++ b/drivers/mtd/nand/raw/r852.c
@@ -64,7 +64,7 @@  static inline void r852_write_reg_dword(struct r852_device *dev,
 /* returns pointer to our private structure */
 static inline struct r852_device *r852_get_dev(struct mtd_info *mtd)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	return nand_get_controller_data(chip);
 }
 
@@ -634,7 +634,7 @@  static void r852_update_media_status(struct r852_device *dev)
  */
 static int r852_register_nand_device(struct r852_device *dev)
 {
-	struct mtd_info *mtd = nand_to_mtd(dev->chip);
+	struct mtd_info *mtd = nandchip_to_mtd(dev->chip);
 
 	WARN_ON(dev->card_registred);
 
@@ -669,7 +669,7 @@  static int r852_register_nand_device(struct r852_device *dev)
 
 static void r852_unregister_nand_device(struct r852_device *dev)
 {
-	struct mtd_info *mtd = nand_to_mtd(dev->chip);
+	struct mtd_info *mtd = nandchip_to_mtd(dev->chip);
 
 	if (!dev->card_registred)
 		return;
@@ -1025,7 +1025,7 @@  static int r852_suspend(struct device *device)
 static int r852_resume(struct device *device)
 {
 	struct r852_device *dev = pci_get_drvdata(to_pci_dev(device));
-	struct mtd_info *mtd = nand_to_mtd(dev->chip);
+	struct mtd_info *mtd = nandchip_to_mtd(dev->chip);
 
 	r852_disable_irqs(dev);
 	r852_card_update_present(dev);
diff --git a/drivers/mtd/nand/raw/s3c2410.c b/drivers/mtd/nand/raw/s3c2410.c
index 0b2314b..d6918b0 100644
--- a/drivers/mtd/nand/raw/s3c2410.c
+++ b/drivers/mtd/nand/raw/s3c2410.c
@@ -207,7 +207,7 @@  struct s3c24XX_nand_devtype_data {
 
 static struct s3c2410_nand_mtd *s3c2410_nand_mtd_toours(struct mtd_info *mtd)
 {
-	return container_of(mtd_to_nand(mtd), struct s3c2410_nand_mtd,
+	return container_of(mtd_to_nandchip(mtd), struct s3c2410_nand_mtd,
 			    chip);
 }
 
@@ -422,7 +422,7 @@  static void s3c2410_nand_select_chip(struct mtd_info *mtd, int chip)
 {
 	struct s3c2410_nand_info *info;
 	struct s3c2410_nand_mtd *nmtd;
-	struct nand_chip *this = mtd_to_nand(mtd);
+	struct nand_chip *this = mtd_to_nandchip(mtd);
 	unsigned long cur;
 
 	nmtd = nand_get_controller_data(this);
@@ -673,7 +673,7 @@  static int s3c2440_nand_calculate_ecc(struct mtd_info *mtd, const u_char *dat,
 
 static void s3c2410_nand_read_buf(struct mtd_info *mtd, u_char *buf, int len)
 {
-	struct nand_chip *this = mtd_to_nand(mtd);
+	struct nand_chip *this = mtd_to_nandchip(mtd);
 	readsb(this->IO_ADDR_R, buf, len);
 }
 
@@ -695,7 +695,7 @@  static void s3c2440_nand_read_buf(struct mtd_info *mtd, u_char *buf, int len)
 static void s3c2410_nand_write_buf(struct mtd_info *mtd, const u_char *buf,
 				   int len)
 {
-	struct nand_chip *this = mtd_to_nand(mtd);
+	struct nand_chip *this = mtd_to_nandchip(mtd);
 	writesb(this->IO_ADDR_W, buf, len);
 }
 
@@ -784,7 +784,7 @@  static int s3c24xx_nand_remove(struct platform_device *pdev)
 
 		for (mtdno = 0; mtdno < info->mtd_count; mtdno++, ptr++) {
 			pr_debug("releasing mtd %d (%p)\n", mtdno, ptr);
-			nand_release(nand_to_mtd(&ptr->chip));
+			nand_release(nandchip_to_mtd(&ptr->chip));
 		}
 	}
 
@@ -801,7 +801,7 @@  static int s3c2410_nand_add_partition(struct s3c2410_nand_info *info,
 				      struct s3c2410_nand_set *set)
 {
 	if (set) {
-		struct mtd_info *mtdinfo = nand_to_mtd(&mtd->chip);
+		struct mtd_info *mtdinfo = nandchip_to_mtd(&mtd->chip);
 
 		mtdinfo->name = set->name;
 
@@ -984,7 +984,7 @@  static int s3c2410_nand_update_chip(struct s3c2410_nand_info *info,
 		} else {
 			chip->ecc.size	    = 512;
 			chip->ecc.bytes	    = 3;
-			mtd_set_ooblayout(nand_to_mtd(chip),
+			mtd_set_ooblayout(nandchip_to_mtd(chip),
 					  &s3c2410_ooblayout_ops);
 		}
 
@@ -1157,7 +1157,7 @@  static int s3c24xx_nand_probe(struct platform_device *pdev)
 	nmtd = info->mtds;
 
 	for (setno = 0; setno < nr_sets; setno++, nmtd++) {
-		struct mtd_info *mtd = nand_to_mtd(&nmtd->chip);
+		struct mtd_info *mtd = nandchip_to_mtd(&nmtd->chip);
 
 		pr_debug("initialising set %d (%p, info %p)\n",
 			 setno, nmtd, info);
diff --git a/drivers/mtd/nand/raw/sh_flctl.c b/drivers/mtd/nand/raw/sh_flctl.c
index 492705f..1525f15 100644
--- a/drivers/mtd/nand/raw/sh_flctl.c
+++ b/drivers/mtd/nand/raw/sh_flctl.c
@@ -45,7 +45,7 @@ 
 static int flctl_4secc_ooblayout_sp_ecc(struct mtd_info *mtd, int section,
 					struct mtd_oob_region *oobregion)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 
 	if (section)
 		return -ERANGE;
@@ -76,7 +76,7 @@  static int flctl_4secc_ooblayout_sp_free(struct mtd_info *mtd, int section,
 static int flctl_4secc_ooblayout_lp_ecc(struct mtd_info *mtd, int section,
 					struct mtd_oob_region *oobregion)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 
 	if (section >= chip->ecc.steps)
 		return -ERANGE;
@@ -90,7 +90,7 @@  static int flctl_4secc_ooblayout_lp_ecc(struct mtd_info *mtd, int section,
 static int flctl_4secc_ooblayout_lp_free(struct mtd_info *mtd, int section,
 					 struct mtd_oob_region *oobregion)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 
 	if (section >= chip->ecc.steps)
 		return -ERANGE;
@@ -1164,7 +1164,7 @@  static int flctl_probe(struct platform_device *pdev)
 
 	platform_set_drvdata(pdev, flctl);
 	nand = &flctl->chip;
-	flctl_mtd = nand_to_mtd(nand);
+	flctl_mtd = nandchip_to_mtd(nand);
 	nand_set_flash_node(nand, pdev->dev.of_node);
 	flctl_mtd->dev.parent = &pdev->dev;
 	flctl->pdev = pdev;
@@ -1229,7 +1229,7 @@  static int flctl_remove(struct platform_device *pdev)
 	struct sh_flctl *flctl = platform_get_drvdata(pdev);
 
 	flctl_release_dma(flctl);
-	nand_release(nand_to_mtd(&flctl->chip));
+	nand_release(nandchip_to_mtd(&flctl->chip));
 	pm_runtime_disable(&pdev->dev);
 
 	return 0;
diff --git a/drivers/mtd/nand/raw/sharpsl.c b/drivers/mtd/nand/raw/sharpsl.c
index 737efe8..38c7fb3 100644
--- a/drivers/mtd/nand/raw/sharpsl.c
+++ b/drivers/mtd/nand/raw/sharpsl.c
@@ -36,7 +36,7 @@  struct sharpsl_nand {
 
 static inline struct sharpsl_nand *mtd_to_sharpsl(struct mtd_info *mtd)
 {
-	return container_of(mtd_to_nand(mtd), struct sharpsl_nand, chip);
+	return container_of(mtd_to_nandchip(mtd), struct sharpsl_nand, chip);
 }
 
 /* register offset */
@@ -68,7 +68,7 @@  static void sharpsl_nand_hwcontrol(struct mtd_info *mtd, int cmd,
 				   unsigned int ctrl)
 {
 	struct sharpsl_nand *sharpsl = mtd_to_sharpsl(mtd);
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 
 	if (ctrl & NAND_CTRL_CHANGE) {
 		unsigned char bits = ctrl & 0x07;
@@ -146,7 +146,7 @@  static int sharpsl_nand_probe(struct platform_device *pdev)
 	this = (struct nand_chip *)(&sharpsl->chip);
 
 	/* Link the private data with the MTD structure */
-	mtd = nand_to_mtd(this);
+	mtd = nandchip_to_mtd(this);
 	mtd->dev.parent = &pdev->dev;
 	mtd_set_ooblayout(mtd, data->ecc_layout);
 
@@ -210,7 +210,7 @@  static int sharpsl_nand_remove(struct platform_device *pdev)
 	struct sharpsl_nand *sharpsl = platform_get_drvdata(pdev);
 
 	/* Release resources, unregister device */
-	nand_release(nand_to_mtd(&sharpsl->chip));
+	nand_release(nandchip_to_mtd(&sharpsl->chip));
 
 	iounmap(sharpsl->io);
 
diff --git a/drivers/mtd/nand/raw/sm_common.c b/drivers/mtd/nand/raw/sm_common.c
index c378705..0e7e367 100644
--- a/drivers/mtd/nand/raw/sm_common.c
+++ b/drivers/mtd/nand/raw/sm_common.c
@@ -163,7 +163,7 @@  static int sm_block_markbad(struct mtd_info *mtd, loff_t ofs)
 
 int sm_register_device(struct mtd_info *mtd, int smartmedia)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	int ret;
 
 	chip->options |= NAND_SKIP_BBTSCAN;
diff --git a/drivers/mtd/nand/raw/socrates_nand.c b/drivers/mtd/nand/raw/socrates_nand.c
index 575997d..c17a5f3 100644
--- a/drivers/mtd/nand/raw/socrates_nand.c
+++ b/drivers/mtd/nand/raw/socrates_nand.c
@@ -44,7 +44,7 @@  static void socrates_nand_write_buf(struct mtd_info *mtd,
 		const uint8_t *buf, int len)
 {
 	int i;
-	struct nand_chip *this = mtd_to_nand(mtd);
+	struct nand_chip *this = mtd_to_nandchip(mtd);
 	struct socrates_nand_host *host = nand_get_controller_data(this);
 
 	for (i = 0; i < len; i++) {
@@ -63,7 +63,7 @@  static void socrates_nand_write_buf(struct mtd_info *mtd,
 static void socrates_nand_read_buf(struct mtd_info *mtd, uint8_t *buf, int len)
 {
 	int i;
-	struct nand_chip *this = mtd_to_nand(mtd);
+	struct nand_chip *this = mtd_to_nandchip(mtd);
 	struct socrates_nand_host *host = nand_get_controller_data(this);
 	uint32_t val;
 
@@ -104,7 +104,7 @@  static uint16_t socrates_nand_read_word(struct mtd_info *mtd)
 static void socrates_nand_cmd_ctrl(struct mtd_info *mtd, int cmd,
 		unsigned int ctrl)
 {
-	struct nand_chip *nand_chip = mtd_to_nand(mtd);
+	struct nand_chip *nand_chip = mtd_to_nandchip(mtd);
 	struct socrates_nand_host *host = nand_get_controller_data(nand_chip);
 	uint32_t val;
 
@@ -129,7 +129,7 @@  static void socrates_nand_cmd_ctrl(struct mtd_info *mtd, int cmd,
  */
 static int socrates_nand_device_ready(struct mtd_info *mtd)
 {
-	struct nand_chip *nand_chip = mtd_to_nand(mtd);
+	struct nand_chip *nand_chip = mtd_to_nandchip(mtd);
 	struct socrates_nand_host *host = nand_get_controller_data(nand_chip);
 
 	if (in_be32(host->io_base) & FPGA_NAND_BUSY)
@@ -159,7 +159,7 @@  static int socrates_nand_probe(struct platform_device *ofdev)
 	}
 
 	nand_chip = &host->nand_chip;
-	mtd = nand_to_mtd(nand_chip);
+	mtd = nandchip_to_mtd(nand_chip);
 	host->dev = &ofdev->dev;
 
 	/* link the private data structures */
@@ -208,7 +208,7 @@  static int socrates_nand_probe(struct platform_device *ofdev)
 static int socrates_nand_remove(struct platform_device *ofdev)
 {
 	struct socrates_nand_host *host = dev_get_drvdata(&ofdev->dev);
-	struct mtd_info *mtd = nand_to_mtd(&host->nand_chip);
+	struct mtd_info *mtd = nandchip_to_mtd(&host->nand_chip);
 
 	nand_release(mtd);
 
diff --git a/drivers/mtd/nand/raw/sunxi_nand.c b/drivers/mtd/nand/raw/sunxi_nand.c
index 214a9c7..971978e 100644
--- a/drivers/mtd/nand/raw/sunxi_nand.c
+++ b/drivers/mtd/nand/raw/sunxi_nand.c
@@ -379,7 +379,7 @@  static int sunxi_nfc_dma_op_prepare(struct mtd_info *mtd, const void *buf,
 				    enum dma_data_direction ddir,
 				    struct scatterlist *sg)
 {
-	struct nand_chip *nand = mtd_to_nand(mtd);
+	struct nand_chip *nand = mtd_to_nandchip(mtd);
 	struct sunxi_nfc *nfc = to_sunxi_nfc(nand->controller);
 	struct dma_async_tx_descriptor *dmad;
 	enum dma_transfer_direction tdir;
@@ -427,7 +427,7 @@  static void sunxi_nfc_dma_op_cleanup(struct mtd_info *mtd,
 				     enum dma_data_direction ddir,
 				     struct scatterlist *sg)
 {
-	struct nand_chip *nand = mtd_to_nand(mtd);
+	struct nand_chip *nand = mtd_to_nandchip(mtd);
 	struct sunxi_nfc *nfc = to_sunxi_nfc(nand->controller);
 
 	dma_unmap_sg(nfc->dev, sg, 1, ddir);
@@ -437,7 +437,7 @@  static void sunxi_nfc_dma_op_cleanup(struct mtd_info *mtd,
 
 static int sunxi_nfc_dev_ready(struct mtd_info *mtd)
 {
-	struct nand_chip *nand = mtd_to_nand(mtd);
+	struct nand_chip *nand = mtd_to_nandchip(mtd);
 	struct sunxi_nand_chip *sunxi_nand = to_sunxi_nand(nand);
 	struct sunxi_nfc *nfc = to_sunxi_nfc(sunxi_nand->nand.controller);
 	struct sunxi_nand_rb *rb;
@@ -468,7 +468,7 @@  static int sunxi_nfc_dev_ready(struct mtd_info *mtd)
 
 static void sunxi_nfc_select_chip(struct mtd_info *mtd, int chip)
 {
-	struct nand_chip *nand = mtd_to_nand(mtd);
+	struct nand_chip *nand = mtd_to_nandchip(mtd);
 	struct sunxi_nand_chip *sunxi_nand = to_sunxi_nand(nand);
 	struct sunxi_nfc *nfc = to_sunxi_nfc(sunxi_nand->nand.controller);
 	struct sunxi_nand_chip_sel *sel;
@@ -513,7 +513,7 @@  static void sunxi_nfc_select_chip(struct mtd_info *mtd, int chip)
 
 static void sunxi_nfc_read_buf(struct mtd_info *mtd, uint8_t *buf, int len)
 {
-	struct nand_chip *nand = mtd_to_nand(mtd);
+	struct nand_chip *nand = mtd_to_nandchip(mtd);
 	struct sunxi_nand_chip *sunxi_nand = to_sunxi_nand(nand);
 	struct sunxi_nfc *nfc = to_sunxi_nfc(sunxi_nand->nand.controller);
 	int ret;
@@ -552,7 +552,7 @@  static void sunxi_nfc_read_buf(struct mtd_info *mtd, uint8_t *buf, int len)
 static void sunxi_nfc_write_buf(struct mtd_info *mtd, const uint8_t *buf,
 				int len)
 {
-	struct nand_chip *nand = mtd_to_nand(mtd);
+	struct nand_chip *nand = mtd_to_nandchip(mtd);
 	struct sunxi_nand_chip *sunxi_nand = to_sunxi_nand(nand);
 	struct sunxi_nfc *nfc = to_sunxi_nfc(sunxi_nand->nand.controller);
 	int ret;
@@ -599,7 +599,7 @@  static uint8_t sunxi_nfc_read_byte(struct mtd_info *mtd)
 static void sunxi_nfc_cmd_ctrl(struct mtd_info *mtd, int dat,
 			       unsigned int ctrl)
 {
-	struct nand_chip *nand = mtd_to_nand(mtd);
+	struct nand_chip *nand = mtd_to_nandchip(mtd);
 	struct sunxi_nand_chip *sunxi_nand = to_sunxi_nand(nand);
 	struct sunxi_nfc *nfc = to_sunxi_nfc(sunxi_nand->nand.controller);
 	int ret;
@@ -756,7 +756,7 @@  static u16 sunxi_nfc_randomizer_state(struct mtd_info *mtd, int page, bool ecc)
 static void sunxi_nfc_randomizer_config(struct mtd_info *mtd,
 					int page, bool ecc)
 {
-	struct nand_chip *nand = mtd_to_nand(mtd);
+	struct nand_chip *nand = mtd_to_nandchip(mtd);
 	struct sunxi_nfc *nfc = to_sunxi_nfc(nand->controller);
 	u32 ecc_ctl = readl(nfc->regs + NFC_REG_ECC_CTL);
 	u16 state;
@@ -772,7 +772,7 @@  static void sunxi_nfc_randomizer_config(struct mtd_info *mtd,
 
 static void sunxi_nfc_randomizer_enable(struct mtd_info *mtd)
 {
-	struct nand_chip *nand = mtd_to_nand(mtd);
+	struct nand_chip *nand = mtd_to_nandchip(mtd);
 	struct sunxi_nfc *nfc = to_sunxi_nfc(nand->controller);
 
 	if (!(nand->options & NAND_NEED_SCRAMBLING))
@@ -784,7 +784,7 @@  static void sunxi_nfc_randomizer_enable(struct mtd_info *mtd)
 
 static void sunxi_nfc_randomizer_disable(struct mtd_info *mtd)
 {
-	struct nand_chip *nand = mtd_to_nand(mtd);
+	struct nand_chip *nand = mtd_to_nandchip(mtd);
 	struct sunxi_nfc *nfc = to_sunxi_nfc(nand->controller);
 
 	if (!(nand->options & NAND_NEED_SCRAMBLING))
@@ -823,7 +823,7 @@  static void sunxi_nfc_randomizer_read_buf(struct mtd_info *mtd, uint8_t *buf,
 
 static void sunxi_nfc_hw_ecc_enable(struct mtd_info *mtd)
 {
-	struct nand_chip *nand = mtd_to_nand(mtd);
+	struct nand_chip *nand = mtd_to_nandchip(mtd);
 	struct sunxi_nfc *nfc = to_sunxi_nfc(nand->controller);
 	struct sunxi_nand_hw_ecc *data = nand->ecc.priv;
 	u32 ecc_ctl;
@@ -842,7 +842,7 @@  static void sunxi_nfc_hw_ecc_enable(struct mtd_info *mtd)
 
 static void sunxi_nfc_hw_ecc_disable(struct mtd_info *mtd)
 {
-	struct nand_chip *nand = mtd_to_nand(mtd);
+	struct nand_chip *nand = mtd_to_nandchip(mtd);
 	struct sunxi_nfc *nfc = to_sunxi_nfc(nand->controller);
 
 	writel(readl(nfc->regs + NFC_REG_ECC_CTL) & ~NFC_ECC_EN,
@@ -865,7 +865,7 @@  static inline u32 sunxi_nfc_buf_to_user_data(const u8 *buf)
 static void sunxi_nfc_hw_ecc_get_prot_oob_bytes(struct mtd_info *mtd, u8 *oob,
 						int step, bool bbm, int page)
 {
-	struct nand_chip *nand = mtd_to_nand(mtd);
+	struct nand_chip *nand = mtd_to_nandchip(mtd);
 	struct sunxi_nfc *nfc = to_sunxi_nfc(nand->controller);
 
 	sunxi_nfc_user_data_to_buf(readl(nfc->regs + NFC_REG_USER_DATA(step)),
@@ -880,7 +880,7 @@  static void sunxi_nfc_hw_ecc_set_prot_oob_bytes(struct mtd_info *mtd,
 						const u8 *oob, int step,
 						bool bbm, int page)
 {
-	struct nand_chip *nand = mtd_to_nand(mtd);
+	struct nand_chip *nand = mtd_to_nandchip(mtd);
 	struct sunxi_nfc *nfc = to_sunxi_nfc(nand->controller);
 	u8 user_data[4];
 
@@ -909,7 +909,7 @@  static void sunxi_nfc_hw_ecc_update_stats(struct mtd_info *mtd,
 static int sunxi_nfc_hw_ecc_correct(struct mtd_info *mtd, u8 *data, u8 *oob,
 				    int step, u32 status, bool *erased)
 {
-	struct nand_chip *nand = mtd_to_nand(mtd);
+	struct nand_chip *nand = mtd_to_nandchip(mtd);
 	struct sunxi_nfc *nfc = to_sunxi_nfc(nand->controller);
 	struct nand_ecc_ctrl *ecc = &nand->ecc;
 	u32 tmp;
@@ -950,7 +950,7 @@  static int sunxi_nfc_hw_ecc_read_chunk(struct mtd_info *mtd,
 				       unsigned int *max_bitflips,
 				       bool bbm, bool oob_required, int page)
 {
-	struct nand_chip *nand = mtd_to_nand(mtd);
+	struct nand_chip *nand = mtd_to_nandchip(mtd);
 	struct sunxi_nfc *nfc = to_sunxi_nfc(nand->controller);
 	struct nand_ecc_ctrl *ecc = &nand->ecc;
 	int raw_mode = 0;
@@ -1029,7 +1029,7 @@  static void sunxi_nfc_hw_ecc_read_extra_oob(struct mtd_info *mtd,
 					    u8 *oob, int *cur_off,
 					    bool randomize, int page)
 {
-	struct nand_chip *nand = mtd_to_nand(mtd);
+	struct nand_chip *nand = mtd_to_nandchip(mtd);
 	struct nand_ecc_ctrl *ecc = &nand->ecc;
 	int offset = ((ecc->bytes + 4) * ecc->steps);
 	int len = mtd->oobsize - offset;
@@ -1055,7 +1055,7 @@  static int sunxi_nfc_hw_ecc_read_chunks_dma(struct mtd_info *mtd, uint8_t *buf,
 					    int oob_required, int page,
 					    int nchunks)
 {
-	struct nand_chip *nand = mtd_to_nand(mtd);
+	struct nand_chip *nand = mtd_to_nandchip(mtd);
 	bool randomized = nand->options & NAND_NEED_SCRAMBLING;
 	struct sunxi_nfc *nfc = to_sunxi_nfc(nand->controller);
 	struct nand_ecc_ctrl *ecc = &nand->ecc;
@@ -1181,7 +1181,7 @@  static int sunxi_nfc_hw_ecc_write_chunk(struct mtd_info *mtd,
 					int *cur_off, bool bbm,
 					int page)
 {
-	struct nand_chip *nand = mtd_to_nand(mtd);
+	struct nand_chip *nand = mtd_to_nandchip(mtd);
 	struct sunxi_nfc *nfc = to_sunxi_nfc(nand->controller);
 	struct nand_ecc_ctrl *ecc = &nand->ecc;
 	int ret;
@@ -1219,7 +1219,7 @@  static void sunxi_nfc_hw_ecc_write_extra_oob(struct mtd_info *mtd,
 					     u8 *oob, int *cur_off,
 					     int page)
 {
-	struct nand_chip *nand = mtd_to_nand(mtd);
+	struct nand_chip *nand = mtd_to_nandchip(mtd);
 	struct nand_ecc_ctrl *ecc = &nand->ecc;
 	int offset = ((ecc->bytes + 4) * ecc->steps);
 	int len = mtd->oobsize - offset;
@@ -1410,7 +1410,7 @@  static int sunxi_nfc_hw_ecc_write_page_dma(struct mtd_info *mtd,
 					   int oob_required,
 					   int page)
 {
-	struct nand_chip *nand = mtd_to_nand(mtd);
+	struct nand_chip *nand = mtd_to_nandchip(mtd);
 	struct sunxi_nfc *nfc = to_sunxi_nfc(nand->controller);
 	struct nand_ecc_ctrl *ecc = &nand->ecc;
 	struct scatterlist sg;
@@ -1596,7 +1596,7 @@  static int sunxi_nfc_setup_data_interface(struct mtd_info *mtd,
 					const struct nand_data_interface *conf,
 					bool check_only)
 {
-	struct nand_chip *nand = mtd_to_nand(mtd);
+	struct nand_chip *nand = mtd_to_nandchip(mtd);
 	struct sunxi_nand_chip *chip = to_sunxi_nand(nand);
 	struct sunxi_nfc *nfc = to_sunxi_nfc(chip->nand.controller);
 	const struct nand_sdr_timings *timings;
@@ -1746,7 +1746,7 @@  static int sunxi_nfc_setup_data_interface(struct mtd_info *mtd,
 static int sunxi_nand_ooblayout_ecc(struct mtd_info *mtd, int section,
 				    struct mtd_oob_region *oobregion)
 {
-	struct nand_chip *nand = mtd_to_nand(mtd);
+	struct nand_chip *nand = mtd_to_nandchip(mtd);
 	struct nand_ecc_ctrl *ecc = &nand->ecc;
 
 	if (section >= ecc->steps)
@@ -1761,7 +1761,7 @@  static int sunxi_nand_ooblayout_ecc(struct mtd_info *mtd, int section,
 static int sunxi_nand_ooblayout_free(struct mtd_info *mtd, int section,
 				     struct mtd_oob_region *oobregion)
 {
-	struct nand_chip *nand = mtd_to_nand(mtd);
+	struct nand_chip *nand = mtd_to_nandchip(mtd);
 	struct nand_ecc_ctrl *ecc = &nand->ecc;
 
 	if (section > ecc->steps)
@@ -1799,7 +1799,7 @@  static int sunxi_nand_hw_common_ecc_ctrl_init(struct mtd_info *mtd,
 					      struct device_node *np)
 {
 	static const u8 strengths[] = { 16, 24, 28, 32, 40, 48, 56, 60, 64 };
-	struct nand_chip *nand = mtd_to_nand(mtd);
+	struct nand_chip *nand = mtd_to_nandchip(mtd);
 	struct sunxi_nand_chip *sunxi_nand = to_sunxi_nand(nand);
 	struct sunxi_nfc *nfc = to_sunxi_nfc(sunxi_nand->nand.controller);
 	struct sunxi_nand_hw_ecc *data;
@@ -1898,7 +1898,7 @@  static int sunxi_nand_hw_ecc_ctrl_init(struct mtd_info *mtd,
 				       struct nand_ecc_ctrl *ecc,
 				       struct device_node *np)
 {
-	struct nand_chip *nand = mtd_to_nand(mtd);
+	struct nand_chip *nand = mtd_to_nandchip(mtd);
 	struct sunxi_nand_chip *sunxi_nand = to_sunxi_nand(nand);
 	struct sunxi_nfc *nfc = to_sunxi_nfc(sunxi_nand->nand.controller);
 	int ret;
@@ -1962,7 +1962,7 @@  static void sunxi_nand_ecc_cleanup(struct nand_ecc_ctrl *ecc)
 static int sunxi_nand_ecc_init(struct mtd_info *mtd, struct nand_ecc_ctrl *ecc,
 			       struct device_node *np)
 {
-	struct nand_chip *nand = mtd_to_nand(mtd);
+	struct nand_chip *nand = mtd_to_nandchip(mtd);
 	int ret;
 
 	if (!ecc->size) {
@@ -2088,7 +2088,7 @@  static int sunxi_nand_chip_init(struct device *dev, struct sunxi_nfc *nfc,
 	nand->read_byte = sunxi_nfc_read_byte;
 	nand->setup_data_interface = sunxi_nfc_setup_data_interface;
 
-	mtd = nand_to_mtd(nand);
+	mtd = nandchip_to_mtd(nand);
 	mtd->dev.parent = dev;
 
 	ret = nand_scan_ident(mtd, nsels, NULL);
@@ -2157,7 +2157,7 @@  static void sunxi_nand_chips_cleanup(struct sunxi_nfc *nfc)
 	while (!list_empty(&nfc->chips)) {
 		chip = list_first_entry(&nfc->chips, struct sunxi_nand_chip,
 					node);
-		nand_release(nand_to_mtd(&chip->nand));
+		nand_release(nandchip_to_mtd(&chip->nand));
 		sunxi_nand_ecc_cleanup(&chip->nand.ecc);
 		list_del(&chip->node);
 	}
diff --git a/drivers/mtd/nand/raw/tango_nand.c b/drivers/mtd/nand/raw/tango_nand.c
index 906fe0f..8097e88 100644
--- a/drivers/mtd/nand/raw/tango_nand.c
+++ b/drivers/mtd/nand/raw/tango_nand.c
@@ -118,7 +118,7 @@  struct tango_chip {
 
 static void tango_cmd_ctrl(struct mtd_info *mtd, int dat, unsigned int ctrl)
 {
-	struct tango_chip *tchip = to_tango_chip(mtd_to_nand(mtd));
+	struct tango_chip *tchip = to_tango_chip(mtd_to_nandchip(mtd));
 
 	if (ctrl & NAND_CLE)
 		writeb_relaxed(dat, tchip->base + PBUS_CMD);
@@ -129,7 +129,7 @@  static void tango_cmd_ctrl(struct mtd_info *mtd, int dat, unsigned int ctrl)
 
 static int tango_dev_ready(struct mtd_info *mtd)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	struct tango_nfc *nfc = to_tango_nfc(chip->controller);
 
 	return readl_relaxed(nfc->pbus_base + PBUS_CS_CTRL) & PBUS_IORDY;
@@ -137,28 +137,28 @@  static int tango_dev_ready(struct mtd_info *mtd)
 
 static u8 tango_read_byte(struct mtd_info *mtd)
 {
-	struct tango_chip *tchip = to_tango_chip(mtd_to_nand(mtd));
+	struct tango_chip *tchip = to_tango_chip(mtd_to_nandchip(mtd));
 
 	return readb_relaxed(tchip->base + PBUS_DATA);
 }
 
 static void tango_read_buf(struct mtd_info *mtd, u8 *buf, int len)
 {
-	struct tango_chip *tchip = to_tango_chip(mtd_to_nand(mtd));
+	struct tango_chip *tchip = to_tango_chip(mtd_to_nandchip(mtd));
 
 	ioread8_rep(tchip->base + PBUS_DATA, buf, len);
 }
 
 static void tango_write_buf(struct mtd_info *mtd, const u8 *buf, int len)
 {
-	struct tango_chip *tchip = to_tango_chip(mtd_to_nand(mtd));
+	struct tango_chip *tchip = to_tango_chip(mtd_to_nandchip(mtd));
 
 	iowrite8_rep(tchip->base + PBUS_DATA, buf, len);
 }
 
 static void tango_select_chip(struct mtd_info *mtd, int idx)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	struct tango_nfc *nfc = to_tango_nfc(chip->controller);
 	struct tango_chip *tchip = to_tango_chip(chip);
 
@@ -179,7 +179,7 @@  static void tango_select_chip(struct mtd_info *mtd, int idx)
  */
 static int check_erased_page(struct nand_chip *chip, u8 *buf)
 {
-	struct mtd_info *mtd = nand_to_mtd(chip);
+	struct mtd_info *mtd = nandchip_to_mtd(chip);
 	u8 *meta = chip->oob_poi + BBM_SIZE;
 	u8 *ecc = chip->oob_poi + BBM_SIZE + METADATA_SIZE;
 	const int ecc_size = chip->ecc.bytes;
@@ -311,7 +311,7 @@  static int tango_write_page(struct mtd_info *mtd, struct nand_chip *chip,
 
 static void aux_read(struct nand_chip *chip, u8 **buf, int len, int *pos)
 {
-	struct mtd_info *mtd = nand_to_mtd(chip);
+	struct mtd_info *mtd = nandchip_to_mtd(chip);
 
 	*pos += len;
 
@@ -326,7 +326,7 @@  static void aux_read(struct nand_chip *chip, u8 **buf, int len, int *pos)
 
 static void aux_write(struct nand_chip *chip, const u8 **buf, int len, int *pos)
 {
-	struct mtd_info *mtd = nand_to_mtd(chip);
+	struct mtd_info *mtd = nandchip_to_mtd(chip);
 
 	*pos += len;
 
@@ -360,7 +360,7 @@  static void aux_write(struct nand_chip *chip, const u8 **buf, int len, int *pos)
  */
 static void raw_read(struct nand_chip *chip, u8 *buf, u8 *oob)
 {
-	struct mtd_info *mtd = nand_to_mtd(chip);
+	struct mtd_info *mtd = nandchip_to_mtd(chip);
 	u8 *oob_orig = oob;
 	const int page_size = mtd->writesize;
 	const int ecc_size = chip->ecc.bytes;
@@ -387,7 +387,7 @@  static void raw_read(struct nand_chip *chip, u8 *buf, u8 *oob)
 
 static void raw_write(struct nand_chip *chip, const u8 *buf, const u8 *oob)
 {
-	struct mtd_info *mtd = nand_to_mtd(chip);
+	struct mtd_info *mtd = nandchip_to_mtd(chip);
 	const u8 *oob_orig = oob;
 	const int page_size = mtd->writesize;
 	const int ecc_size = chip->ecc.bytes;
@@ -449,7 +449,7 @@  static int tango_write_oob(struct mtd_info *mtd, struct nand_chip *chip,
 
 static int oob_ecc(struct mtd_info *mtd, int idx, struct mtd_oob_region *res)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	struct nand_ecc_ctrl *ecc = &chip->ecc;
 
 	if (idx >= ecc->steps)
@@ -481,7 +481,7 @@  static int tango_set_timings(struct mtd_info *mtd,
 			     bool check_only)
 {
 	const struct nand_sdr_timings *sdr = nand_get_sdr_timings(conf);
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	struct tango_nfc *nfc = to_tango_nfc(chip->controller);
 	struct tango_chip *tchip = to_tango_chip(chip);
 	u32 Trdy, Textw, Twc, Twpw, Tacc, Thold, Trpw, Textr;
@@ -539,7 +539,7 @@  static int chip_init(struct device *dev, struct device_node *np)
 
 	chip = &tchip->nand_chip;
 	ecc = &chip->ecc;
-	mtd = nand_to_mtd(chip);
+	mtd = nandchip_to_mtd(chip);
 
 	chip->read_byte = tango_read_byte;
 	chip->write_buf = tango_write_buf;
@@ -601,7 +601,7 @@  static int tango_nand_remove(struct platform_device *pdev)
 
 	for (cs = 0; cs < MAX_CS; ++cs) {
 		if (nfc->chips[cs])
-			nand_release(nand_to_mtd(&nfc->chips[cs]->nand_chip));
+			nand_release(nandchip_to_mtd(&nfc->chips[cs]->nand_chip));
 	}
 
 	return 0;
diff --git a/drivers/mtd/nand/raw/tmio_nand.c b/drivers/mtd/nand/raw/tmio_nand.c
index c9dd682..5b1bb65 100644
--- a/drivers/mtd/nand/raw/tmio_nand.c
+++ b/drivers/mtd/nand/raw/tmio_nand.c
@@ -120,7 +120,7 @@  struct tmio_nand {
 
 static inline struct tmio_nand *mtd_to_tmio(struct mtd_info *mtd)
 {
-	return container_of(mtd_to_nand(mtd), struct tmio_nand, chip);
+	return container_of(mtd_to_nandchip(mtd), struct tmio_nand, chip);
 }
 
 
@@ -130,7 +130,7 @@  static void tmio_nand_hwcontrol(struct mtd_info *mtd, int cmd,
 				   unsigned int ctrl)
 {
 	struct tmio_nand *tmio = mtd_to_tmio(mtd);
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 
 	if (ctrl & NAND_CTRL_CHANGE) {
 		u8 mode;
@@ -381,7 +381,7 @@  static int tmio_probe(struct platform_device *dev)
 
 	platform_set_drvdata(dev, tmio);
 	nand_chip = &tmio->chip;
-	mtd = nand_to_mtd(nand_chip);
+	mtd = nandchip_to_mtd(nand_chip);
 	mtd->name = "tmio-nand";
 	mtd->dev.parent = &dev->dev;
 
@@ -457,7 +457,7 @@  static int tmio_remove(struct platform_device *dev)
 {
 	struct tmio_nand *tmio = platform_get_drvdata(dev);
 
-	nand_release(nand_to_mtd(&tmio->chip));
+	nand_release(nandchip_to_mtd(&tmio->chip));
 	tmio_hw_stop(dev, tmio);
 	return 0;
 }
diff --git a/drivers/mtd/nand/raw/txx9ndfmc.c b/drivers/mtd/nand/raw/txx9ndfmc.c
index b567d21..edb7cd0 100644
--- a/drivers/mtd/nand/raw/txx9ndfmc.c
+++ b/drivers/mtd/nand/raw/txx9ndfmc.c
@@ -78,7 +78,7 @@  struct txx9ndfmc_drvdata {
 
 static struct platform_device *mtd_to_platdev(struct mtd_info *mtd)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	struct txx9ndfmc_priv *txx9_priv = nand_get_controller_data(chip);
 	return txx9_priv->dev;
 }
@@ -134,7 +134,7 @@  static void txx9ndfmc_read_buf(struct mtd_info *mtd, uint8_t *buf, int len)
 static void txx9ndfmc_cmd_ctrl(struct mtd_info *mtd, int cmd,
 			       unsigned int ctrl)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	struct txx9ndfmc_priv *txx9_priv = nand_get_controller_data(chip);
 	struct platform_device *dev = txx9_priv->dev;
 	struct txx9ndfmc_platform_data *plat = dev_get_platdata(&dev->dev);
@@ -174,7 +174,7 @@  static int txx9ndfmc_calculate_ecc(struct mtd_info *mtd, const uint8_t *dat,
 				   uint8_t *ecc_code)
 {
 	struct platform_device *dev = mtd_to_platdev(mtd);
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	int eccbytes;
 	u32 mcr = txx9ndfmc_read(dev, TXX9_NDFMCR);
 
@@ -194,7 +194,7 @@  static int txx9ndfmc_calculate_ecc(struct mtd_info *mtd, const uint8_t *dat,
 static int txx9ndfmc_correct_data(struct mtd_info *mtd, unsigned char *buf,
 		unsigned char *read_ecc, unsigned char *calc_ecc)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	int eccsize;
 	int corrected = 0;
 	int stat;
@@ -256,7 +256,7 @@  static void txx9ndfmc_initialize(struct platform_device *dev)
 
 static int txx9ndfmc_nand_scan(struct mtd_info *mtd)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	int ret;
 
 	ret = nand_scan_ident(mtd, 1, NULL);
@@ -320,7 +320,7 @@  static int __init txx9ndfmc_probe(struct platform_device *dev)
 		if (!txx9_priv)
 			continue;
 		chip = &txx9_priv->chip;
-		mtd = nand_to_mtd(chip);
+		mtd = nandchip_to_mtd(chip);
 		mtd->dev.parent = &dev->dev;
 
 		chip->read_byte = txx9ndfmc_read_byte;
@@ -387,7 +387,7 @@  static int __exit txx9ndfmc_remove(struct platform_device *dev)
 
 		if (!mtd)
 			continue;
-		chip = mtd_to_nand(mtd);
+		chip = mtd_to_nandchip(mtd);
 		txx9_priv = nand_get_controller_data(chip);
 
 		nand_release(mtd);
diff --git a/drivers/mtd/nand/raw/vf610_nfc.c b/drivers/mtd/nand/raw/vf610_nfc.c
index 1bc4b08..0baf986 100644
--- a/drivers/mtd/nand/raw/vf610_nfc.c
+++ b/drivers/mtd/nand/raw/vf610_nfc.c
@@ -171,7 +171,7 @@  struct vf610_nfc {
 
 static inline struct vf610_nfc *mtd_to_nfc(struct mtd_info *mtd)
 {
-	return container_of(mtd_to_nand(mtd), struct vf610_nfc, chip);
+	return container_of(mtd_to_nandchip(mtd), struct vf610_nfc, chip);
 }
 
 static inline u32 vf610_nfc_read(struct vf610_nfc *nfc, uint reg)
@@ -648,7 +648,7 @@  static int vf610_nfc_probe(struct platform_device *pdev)
 
 	nfc->dev = &pdev->dev;
 	chip = &nfc->chip;
-	mtd = nand_to_mtd(chip);
+	mtd = nandchip_to_mtd(chip);
 
 	mtd->owner = THIS_MODULE;
 	mtd->dev.parent = nfc->dev;
diff --git a/drivers/mtd/nand/raw/xway_nand.c b/drivers/mtd/nand/raw/xway_nand.c
index 9926b4e..c3d4b0f 100644
--- a/drivers/mtd/nand/raw/xway_nand.c
+++ b/drivers/mtd/nand/raw/xway_nand.c
@@ -71,7 +71,7 @@  struct xway_nand_data {
 
 static u8 xway_readb(struct mtd_info *mtd, int op)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	struct xway_nand_data *data = nand_get_controller_data(chip);
 
 	return readb(data->nandaddr + op);
@@ -79,7 +79,7 @@  static u8 xway_readb(struct mtd_info *mtd, int op)
 
 static void xway_writeb(struct mtd_info *mtd, int op, u8 value)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	struct xway_nand_data *data = nand_get_controller_data(chip);
 
 	writeb(value, data->nandaddr + op);
@@ -87,7 +87,7 @@  static void xway_writeb(struct mtd_info *mtd, int op, u8 value)
 
 static void xway_select_chip(struct mtd_info *mtd, int select)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	struct xway_nand_data *data = nand_get_controller_data(chip);
 
 	switch (select) {
@@ -170,7 +170,7 @@  static int xway_nand_probe(struct platform_device *pdev)
 		return PTR_ERR(data->nandaddr);
 
 	nand_set_flash_node(&data->chip, pdev->dev.of_node);
-	mtd = nand_to_mtd(&data->chip);
+	mtd = nandchip_to_mtd(&data->chip);
 	mtd->dev.parent = &pdev->dev;
 
 	data->chip.cmd_ctrl = xway_cmd_ctrl;
@@ -223,7 +223,7 @@  static int xway_nand_remove(struct platform_device *pdev)
 {
 	struct xway_nand_data *data = platform_get_drvdata(pdev);
 
-	nand_release(nand_to_mtd(&data->chip));
+	nand_release(nandchip_to_mtd(&data->chip));
 
 	return 0;
 }
diff --git a/drivers/staging/mt29f_spinand/mt29f_spinand.c b/drivers/staging/mt29f_spinand/mt29f_spinand.c
index f7f6edf..df5671a 100644
--- a/drivers/staging/mt29f_spinand/mt29f_spinand.c
+++ b/drivers/staging/mt29f_spinand/mt29f_spinand.c
@@ -31,7 +31,7 @@ 
 
 static inline struct spinand_state *mtd_to_state(struct mtd_info *mtd)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	struct spinand_info *info = nand_get_controller_data(chip);
 	struct spinand_state *state = info->priv;
 
@@ -756,7 +756,7 @@  static void spinand_reset(struct spi_device *spi_nand)
 static void spinand_cmdfunc(struct mtd_info *mtd, unsigned int command,
 			    int column, int page)
 {
-	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_chip *chip = mtd_to_nandchip(mtd);
 	struct spinand_info *info = nand_get_controller_data(chip);
 	struct spinand_state *state = info->priv;
 
@@ -916,7 +916,7 @@  static int spinand_probe(struct spi_device *spi_nand)
 	chip->options	|= NAND_CACHEPRG;
 	chip->select_chip = spinand_select_chip;
 
-	mtd = nand_to_mtd(chip);
+	mtd = nandchip_to_mtd(chip);
 
 	dev_set_drvdata(&spi_nand->dev, mtd);
 
diff --git a/include/linux/mtd/rawnand.h b/include/linux/mtd/rawnand.h
index fc6ed95..aa43ec4 100644
--- a/include/linux/mtd/rawnand.h
+++ b/include/linux/mtd/rawnand.h
@@ -938,12 +938,12 @@  static inline struct device_node *nand_get_flash_node(struct nand_chip *chip)
 	return mtd_get_of_node(&chip->mtd);
 }
 
-static inline struct nand_chip *mtd_to_nand(struct mtd_info *mtd)
+static inline struct nand_chip *mtd_to_nandchip(struct mtd_info *mtd)
 {
 	return container_of(mtd, struct nand_chip, mtd);
 }
 
-static inline struct mtd_info *nand_to_mtd(struct nand_chip *chip)
+static inline struct mtd_info *nandchip_to_mtd(struct nand_chip *chip)
 {
 	return &chip->mtd;
 }
diff --git a/include/linux/mtd/sh_flctl.h b/include/linux/mtd/sh_flctl.h
index c759d40..0c1a4a9 100644
--- a/include/linux/mtd/sh_flctl.h
+++ b/include/linux/mtd/sh_flctl.h
@@ -186,7 +186,7 @@  struct sh_flctl_platform_data {
 
 static inline struct sh_flctl *mtd_to_flctl(struct mtd_info *mtdinfo)
 {
-	return container_of(mtd_to_nand(mtdinfo), struct sh_flctl, chip);
+	return container_of(mtd_to_nandchip(mtdinfo), struct sh_flctl, chip);
 }
 
 #endif	/* __SH_FLCTL_H__ */