phylib: allow incremental scanning of an mii bus

[linux-2.6-omap-h63xx.git] / drivers / net / phy / mdio_bus.c

diff --git a/drivers/net/phy/mdio_bus.c b/drivers/net/phy/mdio_bus.c
index 94e0b7ed76f16ff8c2c2a7f43aaf341c4cace12d..e7508c10887c2199ff766961aa30015074b5431a 100644 (file)
--- a/drivers/net/phy/mdio_bus.c
+++ b/drivers/net/phy/mdio_bus.c
@@ -60,49 +60,14 @@ int mdiobus_register(struct mii_bus *bus)
                bus->reset(bus);
 
        for (i = 0; i < PHY_MAX_ADDR; i++) {
-               struct phy_device *phydev;
+               bus->phy_map[i] = NULL;
+               if ((bus->phy_mask & (1 << i)) == 0) {
+                       struct phy_device *phydev;
 
-               if (bus->phy_mask & (1 << i)) {
-                       bus->phy_map[i] = NULL;
-                       continue;
+                       phydev = mdiobus_scan(bus, i);
+                       if (IS_ERR(phydev))
+                               err = PTR_ERR(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;
-                       snprintf(phydev->dev.bus_id, BUS_ID_SIZE, PHY_ID_FMT, bus->id, i);
-
-                       phydev->bus = bus;
-
-                       /* Run all of the fixups for this PHY */
-                       phy_scan_fixups(phydev);
-
-                       err = device_register(&phydev->dev);
-
-                       if (err) {
-                               printk(KERN_ERR "phy %d failed to register\n",
-                                               i);
-                               phy_device_free(phydev);
-                               phydev = NULL;
-                       }
-               }
-
-               bus->phy_map[i] = phydev;
        }
 
        pr_info("%s: probed\n", bus->name);
@@ -122,6 +87,48 @@ void mdiobus_unregister(struct mii_bus *bus)
 }
 EXPORT_SYMBOL(mdiobus_unregister);
 
+struct phy_device *mdiobus_scan(struct mii_bus *bus, int addr)
+{
+       struct phy_device *phydev;
+       int err;
+
+       phydev = get_phy_device(bus, addr);
+       if (IS_ERR(phydev) || phydev == NULL)
+               return 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 */
+
+       phydev->irq = bus->irq != NULL ? bus->irq[addr] : PHY_POLL;
+
+       phydev->dev.parent = bus->dev;
+       phydev->dev.bus = &mdio_bus_type;
+       snprintf(phydev->dev.bus_id, BUS_ID_SIZE, PHY_ID_FMT, bus->id, addr);
+
+       phydev->bus = bus;
+
+       /* Run all of the fixups for this PHY */
+       phy_scan_fixups(phydev);
+
+       err = device_register(&phydev->dev);
+       if (err) {
+               printk(KERN_ERR "phy %d failed to register\n", addr);
+               phy_device_free(phydev);
+               phydev = NULL;
+       }
+
+       bus->phy_map[addr] = phydev;
+
+       return phydev;
+}
+EXPORT_SYMBOL(mdiobus_scan);
+
 /**
  * mdio_bus_match - determine if given PHY driver supports the given PHY device
  * @dev: target PHY device