fec: Only pass pdev in fec_ptp_init()

Passing pdev in fec_ptp_init() is enough, since we can get ndev locally.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/ethernet/freescale/fec_ptp.c b/drivers/net/ethernet/freescale/fec_ptp.c
index 25fc960..5007e4f 100644
--- a/drivers/net/ethernet/freescale/fec_ptp.c
+++ b/drivers/net/ethernet/freescale/fec_ptp.c
@@ -347,8 +347,9 @@
  * cyclecounter init routine and exits.
  */
 
-void fec_ptp_init(struct net_device *ndev, struct platform_device *pdev)
+void fec_ptp_init(struct platform_device *pdev)
 {
+	struct net_device *ndev = platform_get_drvdata(pdev);
 	struct fec_enet_private *fep = netdev_priv(ndev);
 
 	fep->ptp_caps.owner = THIS_MODULE;