diff --git a/drivers/net/ethernet/renesas/sh_eth.c b/drivers/net/ethernet/renesas/sh_eth.c
index c63304632935..9b52d350e21a 100644
--- a/drivers/net/ethernet/renesas/sh_eth.c
+++ b/drivers/net/ethernet/renesas/sh_eth.c
@@ -3034,6 +3034,28 @@ static int sh_mdio_release(struct sh_eth_private *mdp)
 	return 0;
 }
 
+static int sh_mdiobb_read(struct mii_bus *bus, int phy, int reg)
+{
+	int res;
+
+	pm_runtime_get_sync(bus->parent);
+	res = mdiobb_read(bus, phy, reg);
+	pm_runtime_put(bus->parent);
+
+	return res;
+}
+
+static int sh_mdiobb_write(struct mii_bus *bus, int phy, int reg, u16 val)
+{
+	int res;
+
+	pm_runtime_get_sync(bus->parent);
+	res = mdiobb_write(bus, phy, reg, val);
+	pm_runtime_put(bus->parent);
+
+	return res;
+}
+
 /* MDIO bus init function */
 static int sh_mdio_init(struct sh_eth_private *mdp,
 			struct sh_eth_plat_data *pd)
@@ -3058,6 +3080,10 @@ static int sh_mdio_init(struct sh_eth_private *mdp,
 	if (!mdp->mii_bus)
 		return -ENOMEM;
 
+	/* Wrap accessors with Runtime PM-aware ops */
+	mdp->mii_bus->read = sh_mdiobb_read;
+	mdp->mii_bus->write = sh_mdiobb_write;
+
 	/* Hook up MII support for ethtool */
 	mdp->mii_bus->name = "sh_mii";
 	mdp->mii_bus->parent = dev;
diff --git a/drivers/net/mdio/mdio-bitbang.c b/drivers/net/mdio/mdio-bitbang.c
index 5136275c8e73..d3915f831854 100644
--- a/drivers/net/mdio/mdio-bitbang.c
+++ b/drivers/net/mdio/mdio-bitbang.c
@@ -149,7 +149,7 @@ static int mdiobb_cmd_addr(struct mdiobb_ctrl *ctrl, int phy, u32 addr)
 	return dev_addr;
 }
 
-static int mdiobb_read(struct mii_bus *bus, int phy, int reg)
+int mdiobb_read(struct mii_bus *bus, int phy, int reg)
 {
 	struct mdiobb_ctrl *ctrl = bus->priv;
 	int ret, i;
@@ -180,8 +180,9 @@ static int mdiobb_read(struct mii_bus *bus, int phy, int reg)
 	mdiobb_get_bit(ctrl);
 	return ret;
 }
+EXPORT_SYMBOL(mdiobb_read);
 
-static int mdiobb_write(struct mii_bus *bus, int phy, int reg, u16 val)
+int mdiobb_write(struct mii_bus *bus, int phy, int reg, u16 val)
 {
 	struct mdiobb_ctrl *ctrl = bus->priv;
 
@@ -201,6 +202,7 @@ static int mdiobb_write(struct mii_bus *bus, int phy, int reg, u16 val)
 	mdiobb_get_bit(ctrl);
 	return 0;
 }
+EXPORT_SYMBOL(mdiobb_write);
 
 struct mii_bus *alloc_mdio_bitbang(struct mdiobb_ctrl *ctrl)
 {
diff --git a/include/linux/mdio-bitbang.h b/include/linux/mdio-bitbang.h
index 5d71e8a8500f..aca4dc037b70 100644
--- a/include/linux/mdio-bitbang.h
+++ b/include/linux/mdio-bitbang.h
@@ -35,6 +35,9 @@ struct mdiobb_ctrl {
 	const struct mdiobb_ops *ops;
 };
 
+int mdiobb_read(struct mii_bus *bus, int phy, int reg);
+int mdiobb_write(struct mii_bus *bus, int phy, int reg, u16 val);
+
 /* The returned bus is not yet registered with the phy layer. */
 struct mii_bus *alloc_mdio_bitbang(struct mdiobb_ctrl *ctrl);