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>

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: