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>
This commit is contained in:
parent
cabeea9808
commit
5cfa1e4e0d
|
@ -84,7 +84,7 @@ struct fsl_espi_transfer {
|
||||||
/* SPCOM register values */
|
/* SPCOM register values */
|
||||||
#define SPCOM_CS(x) ((x) << 30)
|
#define SPCOM_CS(x) ((x) << 30)
|
||||||
#define SPCOM_TRANLEN(x) ((x) << 0)
|
#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
|
#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);
|
reinit_completion(&mpc8xxx_spi->done);
|
||||||
|
|
||||||
/* Set SPCOM[CS] and SPCOM[TRANLEN] field */
|
/* 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)"
|
dev_err(mpc8xxx_spi->dev, "Transaction length (%d)"
|
||||||
" beyond the SPCOM[TRANLEN] field\n", t->len);
|
" beyond the SPCOM[TRANLEN] field\n", t->len);
|
||||||
return -EINVAL;
|
return -EINVAL;
|
||||||
|
|
Loading…
Reference in New Issue