phy: rockchip-snps-pcie3: Use devm_platform_get_and_ioremap_resource()

Use devm_platform_get_and_ioremap_resource() to simplify
code.
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Link: https://lore.kernel.org/r/20220914133728.3781160-1-yangyingliang@huawei.comSigned-off-by: Vinod Koul <vkoul@kernel.org>

drivers/phy/rockchip/phy-rockchip-snps-pcie3.c

@@ -231,15 +231,13 @@ static int rockchip_p3phy_probe(struct platform_device *pdev)
 	struct device *dev = &pdev->dev;
 	struct rockchip_p3phy_priv *priv;
 	struct device_node *np = dev->of_node;
-	struct resource *res;
 	int ret;
 
 	priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
 	if (!priv)
 		return -ENOMEM;
 
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	priv->mmio = devm_ioremap_resource(dev, res);
+	priv->mmio = devm_platform_get_and_ioremap_resource(pdev, 0, NULL);
 	if (IS_ERR(priv->mmio)) {
 		ret = PTR_ERR(priv->mmio);
 		return ret;