phy: lantiq: convert to devm_platform_ioremap_resource

Use devm_platform_ioremap_resource to simplify code
Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
Link: https://lore.kernel.org/r/1604642930-29019-6-git-send-email-chunfeng.yun@mediatek.comSigned-off-by: Vinod Koul <vkoul@kernel.org>

drivers/phy/lantiq/phy-lantiq-vrx200-pcie.c

@@ -402,7 +402,6 @@ static int ltq_vrx200_pcie_phy_probe(struct platform_device *pdev)
 	struct ltq_vrx200_pcie_phy_priv *priv;
 	struct device *dev = &pdev->dev;
 	struct phy_provider *provider;
-	struct resource *res;
 	void __iomem *base;
 	int ret;
 
@@ -410,8 +409,7 @@ static int ltq_vrx200_pcie_phy_probe(struct platform_device *pdev)
 	if (!priv)
 		return -ENOMEM;
 
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	base = devm_ioremap_resource(dev, res);
+	base = devm_platform_ioremap_resource(pdev, 0);
 	if (IS_ERR(base))
 		return PTR_ERR(base);