net: mdio: add unlocked mdiodev C45 bus accessors

Add helper inline functions __mdiodev_c45_read() and
__mdiodev_c45_write(), which are the C45 equivalents of the existing
__mdiodev_read() and __mdiodev_write() added by commit e6a4570
("net: mdio: add unlocked mdiobus and mdiodev bus accessors")

Signed-off-by: Daniel Golle <daniel@makrotopia.org>
Reviewed-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Link: https://patch.msgid.link/8d1d55949a75a871d2a3b90e421de4bd58d77685.1770433307.git.daniel@makrotopia.org
Reviewed-by: Vladimir Oltean <olteanv@gmail.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>

Author: dangowrt

include/linux/mdio.h

@@ -647,6 +647,19 @@ static inline int mdiodev_modify_changed(struct mdio_device *mdiodev,
 				      mask, set);
 }
 
+static inline int __mdiodev_c45_read(struct mdio_device *mdiodev, int devad,
+				     u16 regnum)
+{
+	return __mdiobus_c45_read(mdiodev->bus, mdiodev->addr, devad, regnum);
+}
+
+static inline int __mdiodev_c45_write(struct mdio_device *mdiodev, u32 devad,
+				      u16 regnum, u16 val)
+{
+	return __mdiobus_c45_write(mdiodev->bus, mdiodev->addr, devad, regnum,
+				   val);
+}
+
 static inline int mdiodev_c45_modify(struct mdio_device *mdiodev, int devad,
 				     u32 regnum, u16 mask, u16 set)
 {