media: rc: meson-ir: 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 <[e-mail]>
Reviewed-by: Neil Armstrong <[e-mail]>
Signed-off-by: Hans Verkuil <[e-mail]>
Signed-off-by: Mauro Carvalho Chehab <[e-mail]>

drivers/media/rc/meson-ir.c

···
 {
 	struct device *dev = &pdev->dev;
 	struct device_node *node = dev->of_node;
-	struct resource *res;
 	const char *map_name;
 	struct meson_ir *ir;
 	int irq, ret;
···
 	if (!ir)
 		return -ENOMEM;
 
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	ir->reg = devm_ioremap_resource(dev, res);
+	ir->reg = devm_platform_ioremap_resource(pdev, 0);
 	if (IS_ERR(ir->reg))
 		return PTR_ERR(ir->reg);