Merge HEAD from master.kernel.org:/home/rmk/linux-2.6-ucb.git

[linux-2.6] / drivers / net / phy / mdio_bus.c

diff --git a/drivers/net/phy/mdio_bus.c b/drivers/net/phy/mdio_bus.c
index d5a05be288184e5929d5d132248b78cb609cdbc4..41f62c0c5fcb54c733243fe3799c81373316ae90 100644 (file)
--- a/drivers/net/phy/mdio_bus.c
+++ b/drivers/net/phy/mdio_bus.c
@@ -38,6 +38,80 @@
 #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
@@ -96,4 +170,7 @@ int __init mdio_bus_init(void)
        return bus_register(&mdio_bus_type);
 }
 
-
+void __exit mdio_bus_exit(void)
+{
+       bus_unregister(&mdio_bus_type);
+}