mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-08-24 01:41:39 +00:00
spi/imx: Support different fifo sizes
The i.MX51 ECSPI has a fifo size of 64 entries instead of 8 entries as found on the other cspi bus devices. Cc: Jason Wang <jason77.wang@gmail.com> Signed-off-by: David Jander <david@protonic.nl> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Acked-by: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This commit is contained in:
parent
4b5ee7a768
commit
6ff554e068
1 changed files with 7 additions and 1 deletions
|
@ -77,6 +77,7 @@ struct spi_imx_devtype_data {
|
|||
void (*trigger)(struct spi_imx_data *);
|
||||
int (*rx_available)(struct spi_imx_data *);
|
||||
void (*reset)(struct spi_imx_data *);
|
||||
unsigned int fifosize;
|
||||
};
|
||||
|
||||
struct spi_imx_data {
|
||||
|
@ -541,6 +542,7 @@ static struct spi_imx_devtype_data spi_imx_devtype_data[] __devinitdata = {
|
|||
.trigger = mx1_trigger,
|
||||
.rx_available = mx1_rx_available,
|
||||
.reset = mx1_reset,
|
||||
.fifosize = 8,
|
||||
},
|
||||
#endif
|
||||
#ifdef CONFIG_SPI_IMX_VER_0_0
|
||||
|
@ -550,6 +552,7 @@ static struct spi_imx_devtype_data spi_imx_devtype_data[] __devinitdata = {
|
|||
.trigger = mx27_trigger,
|
||||
.rx_available = mx27_rx_available,
|
||||
.reset = spi_imx0_0_reset,
|
||||
.fifosize = 8,
|
||||
},
|
||||
#endif
|
||||
#ifdef CONFIG_SPI_IMX_VER_0_4
|
||||
|
@ -559,6 +562,7 @@ static struct spi_imx_devtype_data spi_imx_devtype_data[] __devinitdata = {
|
|||
.trigger = mx31_trigger,
|
||||
.rx_available = mx31_rx_available,
|
||||
.reset = spi_imx0_4_reset,
|
||||
.fifosize = 8,
|
||||
},
|
||||
#endif
|
||||
#ifdef CONFIG_SPI_IMX_VER_0_7
|
||||
|
@ -568,6 +572,7 @@ static struct spi_imx_devtype_data spi_imx_devtype_data[] __devinitdata = {
|
|||
.trigger = mx31_trigger,
|
||||
.rx_available = mx31_rx_available,
|
||||
.reset = spi_imx0_4_reset,
|
||||
.fifosize = 8,
|
||||
},
|
||||
#endif
|
||||
#ifdef CONFIG_SPI_IMX_VER_2_3
|
||||
|
@ -577,6 +582,7 @@ static struct spi_imx_devtype_data spi_imx_devtype_data[] __devinitdata = {
|
|||
.trigger = spi_imx2_3_trigger,
|
||||
.rx_available = spi_imx2_3_rx_available,
|
||||
.reset = spi_imx2_3_reset,
|
||||
.fifosize = 64,
|
||||
},
|
||||
#endif
|
||||
};
|
||||
|
@ -596,7 +602,7 @@ static void spi_imx_chipselect(struct spi_device *spi, int is_active)
|
|||
|
||||
static void spi_imx_push(struct spi_imx_data *spi_imx)
|
||||
{
|
||||
while (spi_imx->txfifo < 8) {
|
||||
while (spi_imx->txfifo < spi_imx->devtype_data.fifosize) {
|
||||
if (!spi_imx->count)
|
||||
break;
|
||||
spi_imx->tx(spi_imx);
|
||||
|
|
Loading…
Reference in a new issue