dmaengine: imx-sdma: Use of_device_get_match_data()

Use of_device_get_match_data() to make the code simpler.

Signed-off-by: Fabio Estevam <festevam@gmail.com>
Link: https://lore.kernel.org/r/20210118121549.1625217-2-festevam@gmail.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>

diff --git a/drivers/dma/imx-sdma.c b/drivers/dma/imx-sdma.c
index a68950f80635c03583114d9bfbba06ec9059a8fe..d5590c08db51ec24d9bb25e92e2d455ccdc0e5fd 100644 (file)
--- a/drivers/dma/imx-sdma.c
+++ b/drivers/dma/imx-sdma.c
@@ -1952,8 +1952,6 @@ static struct dma_chan *sdma_xlate(struct of_phandle_args *dma_spec,
 
 static int sdma_probe(struct platform_device *pdev)
 {
-       const struct of_device_id *of_id =
-                       of_match_device(sdma_dt_ids, &pdev->dev);
        struct device_node *np = pdev->dev.of_node;
        struct device_node *spba_bus;
        const char *fw_name;
@@ -1964,13 +1962,6 @@ static int sdma_probe(struct platform_device *pdev)
        int i;
        struct sdma_engine *sdma;
        s32 *saddr_arr;
-       const struct sdma_driver_data *drvdata = NULL;
-
-       drvdata = of_id->data;
-       if (!drvdata) {
-               dev_err(&pdev->dev, "unable to find driver data\n");
-               return -EINVAL;
-       }
 
        ret = dma_coerce_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
        if (ret)
@@ -1983,7 +1974,7 @@ static int sdma_probe(struct platform_device *pdev)
        spin_lock_init(&sdma->channel_0_lock);
 
        sdma->dev = &pdev->dev;
-       sdma->drvdata = drvdata;
+       sdma->drvdata = of_device_get_match_data(sdma->dev);
 
        irq = platform_get_irq(pdev, 0);
        if (irq < 0)