--- a/drivers/net/phy/phy.c
+++ b/drivers/net/phy/phy.c
@@ -1009,6 +1009,12 @@ static int phy_read_mmd_indirect(struct
 	return ret;
 }
 
+int phy_read_mmd(struct phy_device *phydev, int prtad, int devad, int addr)
+{
+	return phy_read_mmd_indirect(phydev->bus, prtad, devad, phydev->addr);
+}
+EXPORT_SYMBOL(phy_read_mmd);
+
 /**
  * phy_write_mmd_indirect - writes data to the MMD registers
  * @bus: the target MII bus
@@ -1034,6 +1040,12 @@ static void phy_write_mmd_indirect(struc
 	bus->write(bus, addr, MII_MMD_DATA, data);
 }
 
+void phy_write_mmd(struct phy_device *phydev, int prtad, int devad, u16 data)
+{
+	phy_write_mmd_indirect(phydev->bus, prtad, devad, phydev->addr, data);
+}
+EXPORT_SYMBOL(phy_write_mmd);
+
 /**
  * phy_init_eee - init and check the EEE feature
  * @phydev: target phy_device struct
--- a/include/linux/phy.h
+++ b/include/linux/phy.h
@@ -580,6 +580,9 @@ int phy_register_fixup_for_uid(u32 phy_u
 		int (*run)(struct phy_device *));
 int phy_scan_fixups(struct phy_device *phydev);
 
+int phy_read_mmd(struct phy_device *phydev, int prtad, int devad, int addr);
+void phy_write_mmd(struct phy_device *phydev, int prtad, int devad, u16 data);
+
 int phy_init_eee(struct phy_device *phydev, bool clk_stop_enable);
 int phy_get_eee_err(struct phy_device *phydev);
 int phy_ethtool_set_eee(struct phy_device *phydev, struct ethtool_eee *data);