net: phylink: Convert to mdiobus_c45_{read|write}

Author: Andrew Lunn <andrew@lunn.ch>

Stop using the helpers to construct a special phy address which
indicates C45. Instead use the C45 accessors, which will call the
busses C45 specific read/write API.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
(cherry picked from commit 70dcf3c)
Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=2100606
Signed-off-by: Corinna Vinschen <vinschen@redhat.com>

Author: github-cygwin

drivers/net/phy/phylink.c

@@ -2304,8 +2304,11 @@ static int phylink_phy_read(struct phylink *pl, unsigned int phy_id,
 	if (mdio_phy_id_is_c45(phy_id)) {
 		prtad = mdio_phy_id_prtad(phy_id);
 		devad = mdio_phy_id_devad(phy_id);
-		devad = mdiobus_c45_addr(devad, reg);
-	} else if (phydev->is_c45) {
+		return mdiobus_c45_read(pl->phydev->mdio.bus, prtad, devad,
+					reg);
+	}
+
+	if (phydev->is_c45) {
 		switch (reg) {
 		case MII_BMCR:
 		case MII_BMSR:
@@ -2327,12 +2330,11 @@ static int phylink_phy_read(struct phylink *pl, unsigned int phy_id,
 			return -EINVAL;
 		}
 		prtad = phy_id;
-		devad = mdiobus_c45_addr(devad, reg);
-	} else {
-		prtad = phy_id;
-		devad = reg;
+		return mdiobus_c45_read(pl->phydev->mdio.bus, prtad, devad,
+					reg);
 	}
-	return mdiobus_read(pl->phydev->mdio.bus, prtad, devad);
+
+	return mdiobus_read(pl->phydev->mdio.bus, phy_id, reg);
 }
 
 static int phylink_phy_write(struct phylink *pl, unsigned int phy_id,
@@ -2344,8 +2346,11 @@ static int phylink_phy_write(struct phylink *pl, unsigned int phy_id,
 	if (mdio_phy_id_is_c45(phy_id)) {
 		prtad = mdio_phy_id_prtad(phy_id);
 		devad = mdio_phy_id_devad(phy_id);
-		devad = mdiobus_c45_addr(devad, reg);
-	} else if (phydev->is_c45) {
+		return mdiobus_c45_write(pl->phydev->mdio.bus, prtad, devad,
+					 reg, val);
+	}
+
+	if (phydev->is_c45) {
 		switch (reg) {
 		case MII_BMCR:
 		case MII_BMSR:
@@ -2366,14 +2371,11 @@ static int phylink_phy_write(struct phylink *pl, unsigned int phy_id,
 		default:
 			return -EINVAL;
 		}
-		prtad = phy_id;
-		devad = mdiobus_c45_addr(devad, reg);
-	} else {
-		prtad = phy_id;
-		devad = reg;
+		return mdiobus_c45_write(pl->phydev->mdio.bus, phy_id, devad,
+					 reg, val);
 	}
 
-	return mdiobus_write(phydev->mdio.bus, prtad, devad, val);
+	return mdiobus_write(phydev->mdio.bus, phy_id, reg, val);
 }
 
 static int phylink_mii_read(struct phylink *pl, unsigned int phy_id,