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| author | Andy Shevchenko <andriy.shevchenko@linux.intel.com> | 2014-10-02 16:31:07 +0300 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2014-10-02 17:06:26 +0100 |
| commit | 15ee3be78b017ee9d697fe59d45cdfbb35d9fdeb (patch) | |
| tree | e93d0c3c779c72b96496842aedcd3482871cfed4 /drivers/spi | |
| parent | c3c6e231d860774037e7001ff3d536e5644fe2da (diff) | |
| download | linux-15ee3be78b017ee9d697fe59d45cdfbb35d9fdeb.tar.gz linux-15ee3be78b017ee9d697fe59d45cdfbb35d9fdeb.tar.bz2 linux-15ee3be78b017ee9d697fe59d45cdfbb35d9fdeb.zip | |
spi: dw-mid: change magic numbers to the constants
Instead of using magic numbers in the code we create a bit map definition of
the DMACR register and use it.
There is no functional change.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'drivers/spi')
| -rw-r--r-- | drivers/spi/spi-dw-mid.c | 4 | ||||
| -rw-r--r-- | drivers/spi/spi-dw.h | 4 |
2 files changed, 6 insertions, 2 deletions
diff --git a/drivers/spi/spi-dw-mid.c b/drivers/spi/spi-dw-mid.c index ecae30fe28af..7bdf93747e5f 100644 --- a/drivers/spi/spi-dw-mid.c +++ b/drivers/spi/spi-dw-mid.c @@ -124,9 +124,9 @@ static int mid_spi_dma_transfer(struct dw_spi *dws, int cs_change) dw_writew(dws, DW_SPI_DMARDLR, 0xf); dw_writew(dws, DW_SPI_DMATDLR, 0x10); if (dws->tx_dma) - dma_ctrl |= 0x2; + dma_ctrl |= SPI_DMA_TDMAE; if (dws->rx_dma) - dma_ctrl |= 0x1; + dma_ctrl |= SPI_DMA_RDMAE; dw_writew(dws, DW_SPI_DMACR, dma_ctrl); spi_enable_chip(dws, 1); } diff --git a/drivers/spi/spi-dw.h b/drivers/spi/spi-dw.h index 089fc4ba3ace..83a103a76481 100644 --- a/drivers/spi/spi-dw.h +++ b/drivers/spi/spi-dw.h @@ -74,6 +74,10 @@ #define SPI_INT_RXFI (1 << 4) #define SPI_INT_MSTI (1 << 5) +/* Bit fields in DMACR */ +#define SPI_DMA_RDMAE (1 << 0) +#define SPI_DMA_TDMAE (1 << 1) + /* TX RX interrupt level threshold, max can be 256 */ #define SPI_INT_THRESHOLD 32 |