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| author | Hou Zhiqiang <B48286@freescale.com> | 2016-01-22 11:58:26 +0100 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2016-01-22 18:03:26 +0100 |
| commit | 5cfa1e4e0deced0cccedb4b30facb8a8e68e209b (patch) | |
| tree | 4e5cfee93e3d6d50476455291c61584956abe10e /drivers | |
| parent | Merge remote-tracking branches 'spi/topic/sun4i', 'spi/topic/topcliff-pch' an... (diff) | |
| download | linux-5cfa1e4e0deced0cccedb4b30facb8a8e68e209b.tar.xz linux-5cfa1e4e0deced0cccedb4b30facb8a8e68e209b.zip | |
spi/fsl-espi: Correct the maximum transaction length
The maximum length during one transcation is 64KiB.
Signed-off-by: Hou Zhiqiang <B48286@freescale.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/spi/spi-fsl-espi.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/spi/spi-fsl-espi.c b/drivers/spi/spi-fsl-espi.c index 7fd6a4c009d2..7cb0c1921495 100644 --- a/drivers/spi/spi-fsl-espi.c +++ b/drivers/spi/spi-fsl-espi.c @@ -84,7 +84,7 @@ struct fsl_espi_transfer { /* SPCOM register values */ #define SPCOM_CS(x) ((x) << 30) #define SPCOM_TRANLEN(x) ((x) << 0) -#define SPCOM_TRANLEN_MAX 0xFFFF /* Max transaction length */ +#define SPCOM_TRANLEN_MAX 0x10000 /* Max transaction length */ #define AUTOSUSPEND_TIMEOUT 2000 @@ -233,7 +233,7 @@ static int fsl_espi_bufs(struct spi_device *spi, struct spi_transfer *t) reinit_completion(&mpc8xxx_spi->done); /* Set SPCOM[CS] and SPCOM[TRANLEN] field */ - if ((t->len - 1) > SPCOM_TRANLEN_MAX) { + if (t->len > SPCOM_TRANLEN_MAX) { dev_err(mpc8xxx_spi->dev, "Transaction length (%d)" " beyond the SPCOM[TRANLEN] field\n", t->len); return -EINVAL; |