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| author | Andy Shevchenko <andriy.shevchenko@linux.intel.com> | 2019-03-19 16:48:42 +0100 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2019-03-20 18:21:17 +0100 |
| commit | 37821a82e6789eaaa81dd32a67edc3511ebfd5aa (patch) | |
| tree | f6ab2301a07c0f968f08088a94bf131edd65d286 /drivers/spi/spi-pxa2xx-dma.c | |
| parent | spi: dw: Add support for an optional interface clock (diff) | |
| download | linux-37821a82e6789eaaa81dd32a67edc3511ebfd5aa.tar.xz linux-37821a82e6789eaaa81dd32a67edc3511ebfd5aa.zip | |
spi: pxa2xx: Introduce DMA burst size support
Some masters may have different DMA burst size than hard coded default.
In such case respect the value given by DMA burst size provided via
platform data.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Tested-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Reviewed-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'drivers/spi/spi-pxa2xx-dma.c')
| -rw-r--r-- | drivers/spi/spi-pxa2xx-dma.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/spi/spi-pxa2xx-dma.c b/drivers/spi/spi-pxa2xx-dma.c index 15592598273e..e5c26c1779ab 100644 --- a/drivers/spi/spi-pxa2xx-dma.c +++ b/drivers/spi/spi-pxa2xx-dma.c @@ -239,13 +239,15 @@ int pxa2xx_spi_set_dma_burst_and_threshold(struct chip_data *chip, u32 *threshold) { struct pxa2xx_spi_chip *chip_info = spi->controller_data; + struct driver_data *drv_data = spi_controller_get_devdata(spi->controller); + u32 dma_burst_size = drv_data->controller_info->dma_burst_size; /* * If the DMA burst size is given in chip_info we use that, * otherwise we use the default. Also we use the default FIFO * thresholds for now. */ - *burst_code = chip_info ? chip_info->dma_burst_size : 1; + *burst_code = chip_info ? chip_info->dma_burst_size : dma_burst_size; *threshold = SSCR1_RxTresh(RX_THRESH_DFLT) | SSCR1_TxTresh(TX_THRESH_DFLT); |