dmaengine: stm32-mdma: use reset controller only at probe time

Remove reset controller reference from device instance since it is
used only at probe time.

Signed-off-by: Etienne Carriere <etienne.carriere@st.com>
Signed-off-by: Amelie Delaunay <amelie.delaunay@st.com>
Link: https://lore.kernel.org/r/20200127085334.13163-3-amelie.delaunay@st.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>

diff --git a/drivers/dma/stm32-mdma.c b/drivers/dma/stm32-mdma.c
index 2898411..a0fb80d 100644 (file)
--- a/drivers/dma/stm32-mdma.c
+++ b/drivers/dma/stm32-mdma.c
@@ -273,7 +273,6 @@ struct stm32_mdma_device {
        void __iomem *base;
        struct clk *clk;
        int irq;
-       struct reset_control *rst;
        u32 nr_channels;
        u32 nr_requests;
        u32 nr_ahb_addr_masks;
@@ -1532,6 +1531,7 @@ static int stm32_mdma_probe(struct platform_device *pdev)
        struct dma_device *dd;
        struct device_node *of_node;
        struct resource *res;
+       struct reset_control *rst;
        u32 nr_channels, nr_requests;
        int i, count, ret;
 
@@ -1590,11 +1590,11 @@ static int stm32_mdma_probe(struct platform_device *pdev)
                return ret;
        }
 
-       dmadev->rst = devm_reset_control_get(&pdev->dev, NULL);
-       if (!IS_ERR(dmadev->rst)) {
-               reset_control_assert(dmadev->rst);
+       rst = devm_reset_control_get(&pdev->dev, NULL);
+       if (!IS_ERR(rst)) {
+               reset_control_assert(rst);
                udelay(2);
-               reset_control_deassert(dmadev->rst);
+               reset_control_deassert(rst);
        }
 
        dd = &dmadev->ddev;