net: phy: export phy_queue_state_machine

We face the issue that link change interrupt and link status may be
reported by different PHY layers. As a result the link change
interrupt may occur before the link status changes.
Export phy_queue_state_machine to allow PHY drivers to specify a
delay between link status change interrupt and link status check.

v2:
- change jiffies parameter type to unsigned long

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Suggested-by: Russell King <rmk+kernel@armlinux.org.uk>
Acked-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/linux/phy.h b/include/linux/phy.h
index 16cd339..dc4b510 100644
--- a/include/linux/phy.h
+++ b/include/linux/phy.h
@@ -188,7 +188,6 @@ static inline const char *phy_modes(phy_interface_t interface)
 
 
 #define PHY_INIT_TIMEOUT	100000
-#define PHY_STATE_TIME		1
 #define PHY_FORCE_TIMEOUT	10
 
 #define PHY_MAX_ADDR	32
@@ -1140,6 +1139,7 @@ int phy_driver_register(struct phy_driver *new_driver, struct module *owner);
 int phy_drivers_register(struct phy_driver *new_driver, int n,
 			 struct module *owner);
 void phy_state_machine(struct work_struct *work);
+void phy_queue_state_machine(struct phy_device *phydev, unsigned long jiffies);
 void phy_mac_interrupt(struct phy_device *phydev);
 void phy_start_machine(struct phy_device *phydev);
 void phy_stop_machine(struct phy_device *phydev);