[PATCH] drm: rcar-du: Make use of the helper function devm_platform_ioremap_resource()

Cai Huoqing caihuoqing at baidu.com
Tue Aug 31 07:54:42 UTC 2021


Use the devm_platform_ioremap_resource() helper instead of
calling platform_get_resource() and devm_ioremap_resource()
separately

Signed-off-by: Cai Huoqing <caihuoqing at baidu.com>
---
 drivers/gpu/drm/rcar-du/rcar_du_drv.c | 4 +---
 drivers/gpu/drm/rcar-du/rcar_lvds.c   | 4 +---
 2 files changed, 2 insertions(+), 6 deletions(-)

diff --git a/drivers/gpu/drm/rcar-du/rcar_du_drv.c b/drivers/gpu/drm/rcar-du/rcar_du_drv.c
index 4ac26d08ebb4..ebec4b7269d1 100644
--- a/drivers/gpu/drm/rcar-du/rcar_du_drv.c
+++ b/drivers/gpu/drm/rcar-du/rcar_du_drv.c
@@ -570,7 +570,6 @@ static void rcar_du_shutdown(struct platform_device *pdev)
 static int rcar_du_probe(struct platform_device *pdev)
 {
 	struct rcar_du_device *rcdu;
-	struct resource *mem;
 	int ret;
 
 	/* Allocate and initialize the R-Car device structure. */
@@ -585,8 +584,7 @@ static int rcar_du_probe(struct platform_device *pdev)
 	platform_set_drvdata(pdev, rcdu);
 
 	/* I/O resources */
-	mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	rcdu->mmio = devm_ioremap_resource(&pdev->dev, mem);
+	rcdu->mmio = devm_platform_ioremap_resource(pdev, 0);
 	if (IS_ERR(rcdu->mmio))
 		return PTR_ERR(rcdu->mmio);
 
diff --git a/drivers/gpu/drm/rcar-du/rcar_lvds.c b/drivers/gpu/drm/rcar-du/rcar_lvds.c
index d061b8de748f..a64d910b0500 100644
--- a/drivers/gpu/drm/rcar-du/rcar_lvds.c
+++ b/drivers/gpu/drm/rcar-du/rcar_lvds.c
@@ -802,7 +802,6 @@ static int rcar_lvds_probe(struct platform_device *pdev)
 {
 	const struct soc_device_attribute *attr;
 	struct rcar_lvds *lvds;
-	struct resource *mem;
 	int ret;
 
 	lvds = devm_kzalloc(&pdev->dev, sizeof(*lvds), GFP_KERNEL);
@@ -825,8 +824,7 @@ static int rcar_lvds_probe(struct platform_device *pdev)
 	lvds->bridge.funcs = &rcar_lvds_bridge_ops;
 	lvds->bridge.of_node = pdev->dev.of_node;
 
-	mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	lvds->mmio = devm_ioremap_resource(&pdev->dev, mem);
+	lvds->mmio = devm_platform_ioremap_resource(pdev, 0);
 	if (IS_ERR(lvds->mmio))
 		return PTR_ERR(lvds->mmio);
 
-- 
2.25.1



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