diff options
| author |   Sascha Hauer <s.hauer@pengutronix.de> | 2016-02-24 09:20:28 +0100 |
|---|---|---|
| committer |   Mark Brown <broonie@kernel.org> | 2016-02-26 11:04:14 +0900 |
| commit | 882f329f31cb7317811fe084e0b0642954649bf5 (patch) | |
| tree | 368b3b8c9d92d01e86b2d6073d4a07d2c8b7b266 /drivers/spi | |
| parent | spi: imx: drop unnecessary read/modify/write (diff) | |
| download | linux-dev-882f329f31cb7317811fe084e0b0642954649bf5.tar.xz linux-dev-882f329f31cb7317811fe084e0b0642954649bf5.zip | |
spi: imx: drop unncessary dma_is_inited variable
There's no need for an extra dma_is_inited variable when we can
equally well check for the existence of a DMA channel.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'drivers/spi')
| -rw-r--r-- | drivers/spi/spi-imx.c | 6 |
1 files changed, 1 insertions, 5 deletions
diff --git a/drivers/spi/spi-imx.c b/drivers/spi/spi-imx.c index ec033043734a..567a2426e314 100644 --- a/drivers/spi/spi-imx.c +++ b/drivers/spi/spi-imx.c @@ -102,7 +102,6 @@ struct spi_imx_data { unsigned int txfifo; /* number of words pushed in tx FIFO */ /* DMA */ - unsigned int dma_is_inited; unsigned int dma_finished; bool usedma; u32 wml; @@ -205,7 +204,7 @@ static bool spi_imx_can_dma(struct spi_master *master, struct spi_device *spi, { struct spi_imx_data *spi_imx = spi_master_get_devdata(master); - if (spi_imx->dma_is_inited && transfer->len >= spi_imx->wml && + if (master->dma_rx && transfer->len >= spi_imx->wml && (transfer->len % spi_imx->wml) == 0) return true; return false; @@ -827,8 +826,6 @@ static void spi_imx_sdma_exit(struct spi_imx_data *spi_imx) dma_release_channel(master->dma_tx); master->dma_tx = NULL; } - - spi_imx->dma_is_inited = 0; } static int spi_imx_sdma_init(struct device *dev, struct spi_imx_data *spi_imx, @@ -888,7 +885,6 @@ static int spi_imx_sdma_init(struct device *dev, struct spi_imx_data *spi_imx, master->max_dma_len = MAX_SDMA_BD_BYTES; spi_imx->bitbang.master->flags = SPI_MASTER_MUST_RX | SPI_MASTER_MUST_TX; - spi_imx->dma_is_inited = 1; return 0; err: |