linux-kernel - [PATCH -next 3/4] dmaengine: xilinx_dma: use devm_platform_ioremap

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Date:   Thu, 26 Sep 2019 16:20:59 +0530
From:   Radhey Shyam Pandey <radhey.shyam.pandey@...inx.com>
To:     vkoul@...nel.org, dan.j.williams@...el.com,
        michal.simek@...inx.com, nick.graumann@...il.com,
        andrea.merello@...il.com, appana.durga.rao@...inx.com,
        mcgrof@...nel.org
Cc:     dmaengine@...r.kernel.org, linux-kernel@...r.kernel.org,
        Radhey Shyam Pandey <radhey.shyam.pandey@...inx.com>
Subject: [PATCH -next 3/4] dmaengine: xilinx_dma: use devm_platform_ioremap_resource()

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@...inx.com>
---
 drivers/dma/xilinx/xilinx_dma.c |    4 +---
 1 files changed, 1 insertions(+), 3 deletions(-)

diff --git a/drivers/dma/xilinx/xilinx_dma.c b/drivers/dma/xilinx/xilinx_dma.c
index 5d56f1e..bc9979d 100644
--- a/drivers/dma/xilinx/xilinx_dma.c
+++ b/drivers/dma/xilinx/xilinx_dma.c
@@ -2612,7 +2612,6 @@ 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;
 
@@ -2638,8 +2637,7 @@ 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);
 
-- 
1.7.1