net: ethernet: wiznet: w5300: simplify getting .driver_data

We should get 'driver_data' from 'struct device' directly. Going via
platform_device is an unneeded step back and forth.
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/wiznet/w5300.c

@@ -661,8 +661,7 @@ static int w5300_remove(struct platform_device *pdev)
 #ifdef CONFIG_PM_SLEEP
 static int w5300_suspend(struct device *dev)
 {
-	struct platform_device *pdev = to_platform_device(dev);
-	struct net_device *ndev = platform_get_drvdata(pdev);
+	struct net_device *ndev = dev_get_drvdata(dev);
 	struct w5300_priv *priv = netdev_priv(ndev);
 
 	if (netif_running(ndev)) {
@@ -676,8 +675,7 @@ static int w5300_suspend(struct device *dev)
 
 static int w5300_resume(struct device *dev)
 {
-	struct platform_device *pdev = to_platform_device(dev);
-	struct net_device *ndev = platform_get_drvdata(pdev);
+	struct net_device *ndev = dev_get_drvdata(dev);
 	struct w5300_priv *priv = netdev_priv(ndev);
 
 	if (!netif_running(ndev)) {