phy: Move phy specific bus match into phy_device

Matching a driver to a device has both generic parts, and parts which
are specific to PHY devices. Move the PHY specific parts into
phy_device.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/phy/phy_device.c b/drivers/net/phy/phy_device.c
index a1b833c..7862842 100644
--- a/drivers/net/phy/phy_device.c
+++ b/drivers/net/phy/phy_device.c
@@ -257,6 +257,33 @@
 	return 0;
 }
 
+static int phy_bus_match(struct device *dev, struct device_driver *drv)
+{
+	struct phy_device *phydev = to_phy_device(dev);
+	struct phy_driver *phydrv = to_phy_driver(drv);
+	const int num_ids = ARRAY_SIZE(phydev->c45_ids.device_ids);
+	int i;
+
+	if (phydrv->match_phy_device)
+		return phydrv->match_phy_device(phydev);
+
+	if (phydev->is_c45) {
+		for (i = 1; i < num_ids; i++) {
+			if (!(phydev->c45_ids.devices_in_package & (1 << i)))
+				continue;
+
+			if ((phydrv->phy_id & phydrv->phy_id_mask) ==
+			    (phydev->c45_ids.device_ids[i] &
+			     phydrv->phy_id_mask))
+				return 1;
+		}
+		return 0;
+	} else {
+		return (phydrv->phy_id & phydrv->phy_id_mask) ==
+			(phydev->phy_id & phydrv->phy_id_mask);
+	}
+}
+
 struct phy_device *phy_device_create(struct mii_bus *bus, int addr, int phy_id,
 				     bool is_c45,
 				     struct phy_c45_device_ids *c45_ids)
@@ -275,6 +302,7 @@
 	mdiodev->dev.bus = &mdio_bus_type;
 	mdiodev->bus = bus;
 	mdiodev->pm_ops = MDIO_BUS_PHY_PM_OPS;
+	mdiodev->bus_match = phy_bus_match;
 	mdiodev->addr = addr;
 	mdiodev->flags = MDIO_DEVICE_FLAG_PHY;