ethernet: arc: mdio changes for future SoC glue layer devtree support

This is an api changes for the emac_mdio.c module.
It will be required later when arc_emac_probe/arc_emac_remove
will no longer use 'struct platform_device'.
Signed-off-by: NRomain Perier <romain.perier@gmail.com>
Reviewed-by: NArnd Bergmann <arnd@arndb.de>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

drivers/net/ethernet/arc/emac.h

@@ -204,7 +204,7 @@ static inline void arc_reg_clr(struct arc_emac_priv *priv, int reg, int mask)
 	arc_reg_set(priv, reg, value & ~mask);
 }
 
-int arc_mdio_probe(struct platform_device *pdev, struct arc_emac_priv *priv);
+int arc_mdio_probe(struct arc_emac_priv *priv);
 int arc_mdio_remove(struct arc_emac_priv *priv);
 
 #endif /* ARC_EMAC_H */

drivers/net/ethernet/arc/emac_main.c

@@ -799,7 +799,7 @@ static int arc_emac_probe(struct platform_device *pdev)
 	dev_dbg(dev, "EMAC Device addr: Rx Ring [0x%x], Tx Ring[%x]\n",
 		(unsigned int)priv->rxbd_dma, (unsigned int)priv->txbd_dma);
 
-	err = arc_mdio_probe(pdev, priv);
+	err = arc_mdio_probe(priv);
 	if (err) {
 		dev_err(dev, "failed to probe MII bus\n");
 		goto out_clken;

drivers/net/ethernet/arc/emac_mdio.c

@@ -100,7 +100,6 @@ static int arc_mdio_write(struct mii_bus *bus, int phy_addr,
 
 /**
  * arc_mdio_probe - MDIO probe function.
- * @pdev:	Pointer to platform device.
  * @priv:	Pointer to ARC EMAC private data structure.
  *
  * returns:	0 on success, -ENOMEM when mdiobus_alloc
@@ -108,7 +107,7 @@ static int arc_mdio_write(struct mii_bus *bus, int phy_addr,
  *
  * Sets up and registers the MDIO interface.
  */
-int arc_mdio_probe(struct platform_device *pdev, struct arc_emac_priv *priv)
+int arc_mdio_probe(struct arc_emac_priv *priv)
 {
 	struct mii_bus *bus;
 	int error;
@@ -124,9 +123,9 @@ int arc_mdio_probe(struct platform_device *pdev, struct arc_emac_priv *priv)
 	bus->read = &arc_mdio_read;
 	bus->write = &arc_mdio_write;
 
-	snprintf(bus->id, MII_BUS_ID_SIZE, "%s", pdev->name);
+	snprintf(bus->id, MII_BUS_ID_SIZE, "%s", bus->name);
 
-	error = of_mdiobus_register(bus, pdev->dev.of_node);
+	error = of_mdiobus_register(bus, priv->dev->of_node);
 	if (error) {
 		dev_err(priv->dev, "cannot register MDIO bus %s\n", bus->name);
 		mdiobus_free(bus);