phylib: add mdiobus_{read,write}

Add mdiobus_{read,write} routines to allow direct reading/writing
of registers on an mii bus without having to go through the PHY
abstraction, and make phy_{read,write} use these primitives.

Signed-off-by: Lennert Buytenhek <buytenh@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

2 files changed, 49 insertions, 49 deletions

diff --git a/drivers/net/phy/mdio_bus.c b/drivers/net/phy/mdio_bus.c
index fb4c0965b152..6671e2da0d57 100644
--- a/drivers/net/phy/mdio_bus.c
+++ b/drivers/net/phy/mdio_bus.c
@@ -211,6 +211,55 @@ struct phy_device *mdiobus_scan(struct mii_bus *bus, int addr)
 EXPORT_SYMBOL(mdiobus_scan);
 
 /**
+ * mdiobus_read - Convenience function for reading a given MII mgmt register
+ * @bus: the mii_bus struct
+ * @addr: the phy address
+ * @regnum: register number to read
+ *
+ * NOTE: MUST NOT be called from interrupt context,
+ * because the bus read/write functions may wait for an interrupt
+ * to conclude the operation.
+ */
+int mdiobus_read(struct mii_bus *bus, int addr, u16 regnum)
+{
+        int retval;
+
+        BUG_ON(in_interrupt());
+
+        mutex_lock(&bus->mdio_lock);
+        retval = bus->read(bus, addr, regnum);
+        mutex_unlock(&bus->mdio_lock);
+
+        return retval;
+}
+EXPORT_SYMBOL(mdiobus_read);
+
+/**
+ * mdiobus_write - Convenience function for writing a given MII mgmt register
+ * @bus: the mii_bus struct
+ * @addr: the phy address
+ * @regnum: register number to write
+ * @val: value to write to @regnum
+ *
+ * NOTE: MUST NOT be called from interrupt context,
+ * because the bus read/write functions may wait for an interrupt
+ * to conclude the operation.
+ */
+int mdiobus_write(struct mii_bus *bus, int addr, u16 regnum, u16 val)
+{
+        int err;
+
+        BUG_ON(in_interrupt());
+
+        mutex_lock(&bus->mdio_lock);
+        err = bus->write(bus, addr, regnum, val);
+        mutex_unlock(&bus->mdio_lock);
+
+        return err;
+}
+EXPORT_SYMBOL(mdiobus_write);
+
+/**
  * mdio_bus_match - determine if given PHY driver supports the given PHY device
  * @dev: target PHY device
  * @drv: given PHY driver
diff --git a/drivers/net/phy/phy.c b/drivers/net/phy/phy.c
index 20cc82c78137..df4e6257d4a7 100644
--- a/drivers/net/phy/phy.c
+++ b/drivers/net/phy/phy.c
@@ -58,55 +58,6 @@ EXPORT_SYMBOL(phy_print_status);
 
 
 /**
- * phy_read - Convenience function for reading a given PHY register
- * @phydev: the phy_device struct
- * @regnum: register number to read
- *
- * NOTE: MUST NOT be called from interrupt context,
- * because the bus read/write functions may wait for an interrupt
- * to conclude the operation.
- */
-int phy_read(struct phy_device *phydev, u16 regnum)
-{
-        int retval;
-        struct mii_bus *bus = phydev->bus;
-
-        BUG_ON(in_interrupt());
-
-        mutex_lock(&bus->mdio_lock);
-        retval = bus->read(bus, phydev->addr, regnum);
-        mutex_unlock(&bus->mdio_lock);
-
-        return retval;
-}
-EXPORT_SYMBOL(phy_read);
-
-/**
- * phy_write - Convenience function for writing a given PHY register
- * @phydev: the phy_device struct
- * @regnum: register number to write
- * @val: value to write to @regnum
- *
- * NOTE: MUST NOT be called from interrupt context,
- * because the bus read/write functions may wait for an interrupt
- * to conclude the operation.
- */
-int phy_write(struct phy_device *phydev, u16 regnum, u16 val)
-{
-        int err;
-        struct mii_bus *bus = phydev->bus;
-
-        BUG_ON(in_interrupt());
-
-        mutex_lock(&bus->mdio_lock);
-        err = bus->write(bus, phydev->addr, regnum, val);
-        mutex_unlock(&bus->mdio_lock);
-
-        return err;
-}
-EXPORT_SYMBOL(phy_write);
-
-/**
  * phy_clear_interrupt - Ack the phy device's interrupt
  * @phydev: the phy_device struct
  *