soc: amlogic: canvas: 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>
Reviewed-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Link: https://lore.kernel.org/r/20210908071544.603-1-caihuoqing@baidu.com

drivers/soc/amlogic/meson-canvas.c

@@ -168,7 +168,6 @@ EXPORT_SYMBOL_GPL(meson_canvas_free);
 
 static int meson_canvas_probe(struct platform_device *pdev)
 {
-	struct resource *res;
 	struct meson_canvas *canvas;
 	struct device *dev = &pdev->dev;
 
@@ -176,8 +175,7 @@ static int meson_canvas_probe(struct platform_device *pdev)
 	if (!canvas)
 		return -ENOMEM;
 
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	canvas->reg_base = devm_ioremap_resource(dev, res);
+	canvas->reg_base = devm_platform_ioremap_resource(pdev, 0);
 	if (IS_ERR(canvas->reg_base))
 		return PTR_ERR(canvas->reg_base);