dmaengine: xilinx_dma: use devm_platform_ioremap_resource()

[ Upstream commit eac31a3548debb8e8b3743c0f2a0ab535fa39a0b ]

Replace the chain of platform_get_resource() and devm_ioremap_resource()
with devm_platform_ioremap_resource(). It simplifies the flow and there
is no functional change.

Fixes below cocinelle warning-
WARNING: Use devm_platform_ioremap_resource for xdev -> regs

Signed-off-by: Radhey Shyam Pandey <radhey.shyam.pandey@xilinx.com>
Link: https://lore.kernel.org/r/1569495060-18117-4-git-send-email-radhey.shyam.pandey@xilinx.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Stable-dep-of: 596b53ccc36a ("dmaengine: xilinx_dma: call of_node_put() when breaking out of for_each_child_of_node()")
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/drivers/dma/xilinx/xilinx_dma.c b/drivers/dma/xilinx/xilinx_dma.c
index 3bb711e735ab99380782775bb805a898957e83a9..8a7606bc326aee7f7fe506d3388eeccf9623fd9a 100644 (file)
--- a/drivers/dma/xilinx/xilinx_dma.c
+++ b/drivers/dma/xilinx/xilinx_dma.c
@@ -2626,7 +2626,6 @@ static int xilinx_dma_probe(struct platform_device *pdev)
        struct device_node *node = pdev->dev.of_node;
        struct xilinx_dma_device *xdev;
        struct device_node *child, *np = pdev->dev.of_node;
-       struct resource *io;
        u32 num_frames, addr_width, len_width;
        int i, err;
 
@@ -2652,8 +2651,7 @@ static int xilinx_dma_probe(struct platform_device *pdev)
                return err;
 
        /* Request and map I/O memory */
-       io = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-       xdev->regs = devm_ioremap_resource(&pdev->dev, io);
+       xdev->regs = devm_platform_ioremap_resource(pdev, 0);
        if (IS_ERR(xdev->regs))
                return PTR_ERR(xdev->regs);