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    Subject[PATCH 5.9 145/757] spi: fsi: Handle 9 to 15 byte transfers lengths
    Date
    From: Brad Bishop <bradleyb@fuzziesquirrel.com>

    [ Upstream commit 2b3cef0fc757bd06ed9b83bd4c436bfa55f47370 ]

    The trailing <len> - 8 bytes of transfer data in this size range is no
    longer ignored.

    Fixes: bbb6b2f9865b ("spi: Add FSI-attached SPI controller driver")
    Signed-off-by: Brad Bishop <bradleyb@fuzziesquirrel.com>
    Signed-off-by: Eddie James <eajames@linux.ibm.com>
    Reviewed-by: Joel Stanley <joel@jms.id.au>
    Signed-off-by: Joel Stanley <joel@jms.id.au>
    Link: https://lore.kernel.org/r/20200909222857.28653-2-eajames@linux.ibm.com
    Signed-off-by: Mark Brown <broonie@kernel.org>
    Signed-off-by: Sasha Levin <sashal@kernel.org>
    ---
    drivers/spi/spi-fsi.c | 6 +++---
    1 file changed, 3 insertions(+), 3 deletions(-)

    diff --git a/drivers/spi/spi-fsi.c b/drivers/spi/spi-fsi.c
    index 37a3e0f8e7526..8f64af0140e09 100644
    --- a/drivers/spi/spi-fsi.c
    +++ b/drivers/spi/spi-fsi.c
    @@ -258,15 +258,15 @@ static int fsi_spi_sequence_transfer(struct fsi_spi *ctx,
    if (loops > 1) {
    fsi_spi_sequence_add(seq, SPI_FSI_SEQUENCE_BRANCH(idx));

    - if (rem)
    - fsi_spi_sequence_add(seq, rem);
    -
    rc = fsi_spi_write_reg(ctx, SPI_FSI_COUNTER_CFG,
    SPI_FSI_COUNTER_CFG_LOOPS(loops - 1));
    if (rc)
    return rc;
    }

    + if (rem)
    + fsi_spi_sequence_add(seq, rem);
    +
    return 0;
    }

    --
    2.25.1


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