soc: sunxi_sram: 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: Maxime Ripard <maxime@cerno.tech>
Link: https://lore.kernel.org/r/20210908071716.772-1-caihuoqing@baidu.com

drivers/soc/sunxi/sunxi_sram.c

@@ -331,7 +331,6 @@ static struct regmap_config sunxi_sram_emac_clock_regmap = {
 
 static int sunxi_sram_probe(struct platform_device *pdev)
 {
-	struct resource *res;
 	struct dentry *d;
 	struct regmap *emac_clock;
 	const struct sunxi_sramc_variant *variant;
@@ -342,8 +341,7 @@ static int sunxi_sram_probe(struct platform_device *pdev)
 	if (!variant)
 		return -EINVAL;
 
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	base = devm_ioremap_resource(&pdev->dev, res);
+	base = devm_platform_ioremap_resource(pdev, 0);
 	if (IS_ERR(base))
 		return PTR_ERR(base);