Patchwork [PATCHv2,06/10] drivers: mtd: m25p80: Add api to configure master register.

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Submitter Poddar, Sourav
Date Dec. 6, 2013, 2:24 p.m.
Message ID <1386339891-32717-7-git-send-email-sourav.poddar@ti.com>
Download mbox | patch
Permalink /patch/298030/
State New
Headers show

Comments

Poddar, Sourav - Dec. 6, 2013, 2:24 p.m.
These can be used to fill information needed to configure
master controller registers.

Signed-off-by: Sourav Poddar <sourav.poddar@ti.com>
---
v1->v2:
 instead of a u8 *val, use a struct (slave_info)  already defined 
 in the first patch of the series. This will allow us to add more
 parameters into the struct.

 drivers/mtd/devices/m25p80.c |   18 ++++++++++++++++++
 1 files changed, 18 insertions(+), 0 deletions(-)

Patch

diff --git a/drivers/mtd/devices/m25p80.c b/drivers/mtd/devices/m25p80.c
index 7dc2c14..b90c7e5 100644
--- a/drivers/mtd/devices/m25p80.c
+++ b/drivers/mtd/devices/m25p80.c
@@ -490,6 +490,24 @@  static inline int m25p80_dummy_cycles_read(struct m25p *flash)
 }
 
 /*
+ * This API can be used to transfer flash information to
+ * SPI controller which needs some of its registers to get
+ * configured on flash information.
+ */
+static void m25p80_fill_flash_information(struct m25p *flash)
+{
+	struct spi_device *spi = flash->spi;
+	struct spi_master *master = spi->master;
+
+	spi->info.read_opcode = flash->read_opcode;
+	spi->info.program_opcode = flash->program_opcode;
+	spi->info.addr_width = flash->addr_width;
+	spi->info.dummy_cycles = m25p80_dummy_cycles_read(flash);
+
+	master->configure_from_slave(flash->spi);
+}
+
+/*
  * Read an address range from the flash chip.  The address range
  * may be any size provided it is within the physical boundaries.
  */