| Message ID | 1540287311-1572-3-git-send-email-yogeshnarayan.gaur@nxp.com |
|---|---|
| State | Not Applicable |
| Headers | show |
| Series | spi: add support for octo mode | expand |
On Tue, 23 Oct 2018 09:37:13 +0000 Yogesh Narayan Gaur <yogeshnarayan.gaur@nxp.com> wrote: > Add support for octo mode I/O data transfer in spi-mem framework. > > Signed-off-by: Yogesh Gaur <yogeshnarayan.gaur@nxp.com> Reviewed-by: Boris Brezillon <boris.brezillon@bootlin.com> > --- > Changes for v3: > - Modified string 'octal' with 'octo'. > Changes for v2: > - Patch added in v2 version. > > drivers/spi/spi-mem.c | 9 ++++++++- > 1 file changed, 8 insertions(+), 1 deletion(-) > > diff --git a/drivers/spi/spi-mem.c b/drivers/spi/spi-mem.c > index c6bdea7..2379efc 100644 > --- a/drivers/spi/spi-mem.c > +++ b/drivers/spi/spi-mem.c > @@ -12,7 +12,7 @@ > > #include "internals.h" > > -#define SPI_MEM_MAX_BUSWIDTH 4 > +#define SPI_MEM_MAX_BUSWIDTH 8 > > /** > * spi_controller_dma_map_mem_op_data() - DMA-map the buffer attached to a > @@ -121,6 +121,13 @@ static int spi_check_buswidth_req(struct spi_mem *mem, u8 buswidth, bool tx) > > break; > > + case 8: > + if ((tx && (mode & SPI_TX_OCTO)) || > + (!tx && (mode & SPI_RX_OCTO))) > + return 0; > + > + break; > + > default: > break; > }
diff --git a/drivers/spi/spi-mem.c b/drivers/spi/spi-mem.c index c6bdea7..2379efc 100644 --- a/drivers/spi/spi-mem.c +++ b/drivers/spi/spi-mem.c @@ -12,7 +12,7 @@ #include "internals.h" -#define SPI_MEM_MAX_BUSWIDTH 4 +#define SPI_MEM_MAX_BUSWIDTH 8 /** * spi_controller_dma_map_mem_op_data() - DMA-map the buffer attached to a @@ -121,6 +121,13 @@ static int spi_check_buswidth_req(struct spi_mem *mem, u8 buswidth, bool tx) break; + case 8: + if ((tx && (mode & SPI_TX_OCTO)) || + (!tx && (mode & SPI_RX_OCTO))) + return 0; + + break; + default: break; }
Add support for octo mode I/O data transfer in spi-mem framework. Signed-off-by: Yogesh Gaur <yogeshnarayan.gaur@nxp.com> --- Changes for v3: - Modified string 'octal' with 'octo'. Changes for v2: - Patch added in v2 version. drivers/spi/spi-mem.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-)