net: mdio-ipq4019: Make use of 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: David S. Miller <davem@davemloft.net>

drivers/net/mdio/mdio-ipq4019.c

@@ -207,7 +207,6 @@ static int ipq4019_mdio_probe(struct platform_device *pdev)
 {
 	struct ipq4019_mdio_data *priv;
 	struct mii_bus *bus;
-	struct resource *res;
 	int ret;
 
 	bus = devm_mdiobus_alloc_size(&pdev->dev, sizeof(*priv));
@@ -225,9 +224,7 @@ static int ipq4019_mdio_probe(struct platform_device *pdev)
 		return PTR_ERR(priv->mdio_clk);
 
 	/* The platform resource is provided on the chipset IPQ5018 */
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
-	if (res)
-		priv->eth_ldo_rdy = devm_ioremap_resource(&pdev->dev, res);
+	priv->eth_ldo_rdy = devm_platform_ioremap_resource(pdev, 1);
 
 	bus->name = "ipq4019_mdio";
 	bus->read = ipq4019_mdio_read;