net: stmmac: make stmmac_mdio_reset non-static

This patch promotes stmmac_mdio_reset function from static to
non-static, so that power management functions can decide to reset if
the IP comes out from lowe power state specially hibernation cases.
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@st.com>
Acked-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/stmicro/stmmac/stmmac.h

@@ -110,6 +110,7 @@ struct stmmac_priv {
 
 int stmmac_mdio_unregister(struct net_device *ndev);
 int stmmac_mdio_register(struct net_device *ndev);
+int stmmac_mdio_reset(struct mii_bus *mii);
 void stmmac_set_ethtool_ops(struct net_device *netdev);
 extern const struct stmmac_desc_ops enh_desc_ops;
 extern const struct stmmac_desc_ops ndesc_ops;

drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c

@@ -128,7 +128,7 @@ static int stmmac_mdio_write(struct mii_bus *bus, int phyaddr, int phyreg,
  * @bus: points to the mii_bus structure
  * Description: reset the MII bus
  */
-static int stmmac_mdio_reset(struct mii_bus *bus)
+int stmmac_mdio_reset(struct mii_bus *bus)
 {
 #if defined(CONFIG_STMMAC_PLATFORM)
 	struct net_device *ndev = bus->priv;