phy subsystem: more cleanups

- unexport symbols never used outside of home module
- remove dead code
- remove CONFIG_PHYCONTROL, make it unconditionally enabled

drivers/net/phy/mdio_bus.c

@@ -38,80 +38,6 @@
 #include <asm/irq.h>
 #include <asm/uaccess.h>
 
-/* mdiobus_register 
- *
- * description: Called by a bus driver to bring up all the PHYs
- *   on a given bus, and attach them to the bus
- */
-int mdiobus_register(struct mii_bus *bus)
-{
-	int i;
-	int err = 0;
-
-	spin_lock_init(&bus->mdio_lock);
-
-	if (NULL == bus || NULL == bus->name ||
-			NULL == bus->read ||
-			NULL == bus->write)
-		return -EINVAL;
-
-	if (bus->reset)
-		bus->reset(bus);
-
-	for (i = 0; i < PHY_MAX_ADDR; i++) {
-		struct phy_device *phydev;
-
-		phydev = get_phy_device(bus, i);
-
-		if (IS_ERR(phydev))
-			return PTR_ERR(phydev);
-
-		/* There's a PHY at this address
-		 * We need to set:
-		 * 1) IRQ
-		 * 2) bus_id
-		 * 3) parent
-		 * 4) bus
-		 * 5) mii_bus
-		 * And, we need to register it */
-		if (phydev) {
-			phydev->irq = bus->irq[i];
-
-			phydev->dev.parent = bus->dev;
-			phydev->dev.bus = &mdio_bus_type;
-			sprintf(phydev->dev.bus_id, "phy%d:%d", bus->id, i);
-
-			phydev->bus = bus;
-
-			err = device_register(&phydev->dev);
-
-			if (err)
-				printk(KERN_ERR "phy %d failed to register\n",
-						i);
-		}
-
-		bus->phy_map[i] = phydev;
-	}
-
-	pr_info("%s: probed\n", bus->name);
-
-	return err;
-}
-EXPORT_SYMBOL(mdiobus_register);
-
-void mdiobus_unregister(struct mii_bus *bus)
-{
-	int i;
-
-	for (i = 0; i < PHY_MAX_ADDR; i++) {
-		if (bus->phy_map[i]) {
-			device_unregister(&bus->phy_map[i]->dev);
-			kfree(bus->phy_map[i]);
-		}
-	}
-}
-EXPORT_SYMBOL(mdiobus_unregister);
-
 /* mdio_bus_match
  *
  * description: Given a PHY device, and a PHY driver, return 1 if