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nexedi
linux
Commits
793b3cb6
Commit
793b3cb6
authored
Sep 01, 2013
by
Mark Brown
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Merge remote-tracking branch 'spi/topic/pxa' into spi-next
parents
720ed2d1
1de70612
Changes
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1 changed file
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+8
-1
drivers/spi/spi-pxa2xx.c
drivers/spi/spi-pxa2xx.c
+8
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drivers/spi/spi-pxa2xx.c
View file @
793b3cb6
...
...
@@ -69,6 +69,8 @@ MODULE_ALIAS("platform:pxa2xx-spi");
#define LPSS_TX_HITHRESH_DFLT 224
/* Offset from drv_data->lpss_base */
#define GENERAL_REG 0x08
#define GENERAL_REG_RXTO_HOLDOFF_DISABLE BIT(24)
#define SSP_REG 0x0c
#define SPI_CS_CONTROL 0x18
#define SPI_CS_CONTROL_SW_MODE BIT(0)
...
...
@@ -142,8 +144,13 @@ static void lpss_ssp_setup(struct driver_data *drv_data)
__lpss_ssp_write_priv
(
drv_data
,
SPI_CS_CONTROL
,
value
);
/* Enable multiblock DMA transfers */
if
(
drv_data
->
master_info
->
enable_dma
)
if
(
drv_data
->
master_info
->
enable_dma
)
{
__lpss_ssp_write_priv
(
drv_data
,
SSP_REG
,
1
);
value
=
__lpss_ssp_read_priv
(
drv_data
,
GENERAL_REG
);
value
|=
GENERAL_REG_RXTO_HOLDOFF_DISABLE
;
__lpss_ssp_write_priv
(
drv_data
,
GENERAL_REG
,
value
);
}
}
static
void
lpss_ssp_cs_control
(
struct
driver_data
*
drv_data
,
bool
enable
)
...
...
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