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    Subject[PATCH 4.19 498/639] spi: bcm-qspi: Fix BSPI QUAD and DUAL mode support when using flex mode
    Date
    From: Rayagonda Kokatanur <rayagonda.kokatanur@broadcom.com>

    [ Upstream commit 79629d0f7ce5b38515c1716911a0181f01b91102 ]

    Fix data transfer width settings based on DT field 'spi-rx-bus-width'
    to configure BSPI in single, dual or quad mode by using data width
    and not the command width.

    Fixes: 5f195ee7d830c ("spi: bcm-qspi: Implement the spi_mem interface")

    Signed-off-by: Rayagonda Kokatanur <rayagonda.kokatanur@broadcom.com>
    Link: https://lore.kernel.org/r/1565086070-28451-1-git-send-email-rayagonda.kokatanur@broadcom.com
    Signed-off-by: Mark Brown <broonie@kernel.org>
    Signed-off-by: Sasha Levin <sashal@kernel.org>
    ---
    drivers/spi/spi-bcm-qspi.c | 4 ++--
    1 file changed, 2 insertions(+), 2 deletions(-)

    diff --git a/drivers/spi/spi-bcm-qspi.c b/drivers/spi/spi-bcm-qspi.c
    index 584bcb018a62d..285a6f463013b 100644
    --- a/drivers/spi/spi-bcm-qspi.c
    +++ b/drivers/spi/spi-bcm-qspi.c
    @@ -354,7 +354,7 @@ static int bcm_qspi_bspi_set_flex_mode(struct bcm_qspi *qspi,
    {
    int bpc = 0, bpp = 0;
    u8 command = op->cmd.opcode;
    - int width = op->cmd.buswidth ? op->cmd.buswidth : SPI_NBITS_SINGLE;
    + int width = op->data.buswidth ? op->data.buswidth : SPI_NBITS_SINGLE;
    int addrlen = op->addr.nbytes;
    int flex_mode = 1;

    @@ -992,7 +992,7 @@ static int bcm_qspi_exec_mem_op(struct spi_mem *mem,
    if (mspi_read)
    return bcm_qspi_mspi_exec_mem_op(spi, op);

    - ret = bcm_qspi_bspi_set_mode(qspi, op, -1);
    + ret = bcm_qspi_bspi_set_mode(qspi, op, 0);

    if (!ret)
    ret = bcm_qspi_bspi_exec_mem_op(spi, op);
    --
    2.20.1


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