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    Subject[PATCH v2 5/7] spi: spi-mem: add support for octal I/O data transfer
    Date
    Add support for octal I/O data transfer in spi-mem framework.

    Signed-off-by: Yogesh Gaur <yogeshnarayan.gaur@nxp.com>
    ---
    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..6fa95f8 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_OCTAL)) ||
    + (!tx && (mode & SPI_RX_OCTAL)))
    + return 0;
    +
    + break;
    +
    default:
    break;
    }
    --
    2.7.4
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