Return -ENODEV if the MDIO bus is disabled in the device tree.
Signed-off-by: NSean Wang <sean.wang@mediatek.com>
Acked-by: NJohn Crispin <john@phrozen.org>
Reviewed-by: NAndrew Lunn <andrew@lunn.ch>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>