diff options
Diffstat (limited to 'drivers/spi/spi-pxa2xx.c')
| -rw-r--r-- | drivers/spi/spi-pxa2xx.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/spi/spi-pxa2xx.c b/drivers/spi/spi-pxa2xx.c index 90b27a3..c6d5b97 100644 --- a/drivers/spi/spi-pxa2xx.c +++ b/drivers/spi/spi-pxa2xx.c @@ -68,6 +68,7 @@ MODULE_ALIAS("platform:pxa2xx-spi"); #define LPSS_TX_HITHRESH_DFLT 224 /* Offset from drv_data->lpss_base */ +#define SSP_REG 0x0c #define SPI_CS_CONTROL 0x18 #define SPI_CS_CONTROL_SW_MODE BIT(0) #define SPI_CS_CONTROL_CS_HIGH BIT(1) @@ -138,6 +139,10 @@ detection_done: /* Enable software chip select control */ value = SPI_CS_CONTROL_SW_MODE | SPI_CS_CONTROL_CS_HIGH; __lpss_ssp_write_priv(drv_data, SPI_CS_CONTROL, value); + + /* Enable multiblock DMA transfers */ + if (drv_data->master_info->enable_dma) + __lpss_ssp_write_priv(drv_data, SSP_REG, 1); } static void lpss_ssp_cs_control(struct driver_data *drv_data, bool enable) |