media: rockchip: rga: Make use of the helper function devm_platform_ioremap_resource()

Use the devm_platform_ioremap_resource() helper instead of
calling platform_get_resource() and devm_ioremap_resource()
separately
Signed-off-by: Cai Huoqing <caihuoqing@baidu.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>

drivers/media/platform/rockchip/rga/rga.c

@@ -800,7 +800,6 @@ static int rga_probe(struct platform_device *pdev)
 {
 	struct rockchip_rga *rga;
 	struct video_device *vfd;
-	struct resource *res;
 	int ret = 0;
 	int irq;
 
@@ -821,9 +820,7 @@ static int rga_probe(struct platform_device *pdev)
 
 	pm_runtime_enable(rga->dev);
 
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-
-	rga->regs = devm_ioremap_resource(rga->dev, res);
+	rga->regs = devm_platform_ioremap_resource(pdev, 0);
 	if (IS_ERR(rga->regs)) {
 		ret = PTR_ERR(rga->regs);
 		goto err_put_clk;