net: phy: add helper phy_polling_mode

Add a helper for checking whether polling is used to detect PHY status
changes.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/phy/phy.c b/drivers/net/phy/phy.c
index 04780db..1ee2587 100644 (file)
--- a/drivers/net/phy/phy.c
+++ b/drivers/net/phy/phy.c
@@ -525,7 +525,7 @@ static int phy_start_aneg_priv(struct phy_device *phydev, bool sync)
         * negotiation may already be done and aneg interrupt may not be
         * generated.
         */
-       if (phydev->irq != PHY_POLL && phydev->state == PHY_AN) {
+       if (!phy_polling_mode(phydev) && phydev->state == PHY_AN) {
                err = phy_aneg_done(phydev);
                if (err > 0) {
                        trigger = true;
@@ -983,7 +983,7 @@ void phy_state_machine(struct work_struct *work)
                        needs_aneg = true;
                break;
        case PHY_NOLINK:
-               if (phydev->irq != PHY_POLL)
+               if (!phy_polling_mode(phydev))
                        break;
 
                err = phy_read_status(phydev);
@@ -1024,7 +1024,7 @@ void phy_state_machine(struct work_struct *work)
                /* Only register a CHANGE if we are polling and link changed
                 * since latest checking.
                 */
-               if (phydev->irq == PHY_POLL) {
+               if (phy_polling_mode(phydev)) {
                        old_link = phydev->link;
                        err = phy_read_status(phydev);
                        if (err)
@@ -1123,7 +1123,7 @@ void phy_state_machine(struct work_struct *work)
         * PHY, if PHY_IGNORE_INTERRUPT is set, then we will be moving
         * between states from phy_mac_interrupt()
         */
-       if (phydev->irq == PHY_POLL)
+       if (phy_polling_mode(phydev))
                queue_delayed_work(system_power_efficient_wq, &phydev->state_queue,
                                   PHY_STATE_TIME * HZ);
 }

diff --git a/include/linux/phy.h b/include/linux/phy.h
index 075c2f7..cd6f637 100644 (file)
--- a/include/linux/phy.h
+++ b/include/linux/phy.h
@@ -825,6 +825,16 @@ static inline bool phy_interrupt_is_valid(struct phy_device *phydev)
 }
 
 /**
+ * phy_polling_mode - Convenience function for testing whether polling is
+ * used to detect PHY status changes
+ * @phydev: the phy_device struct
+ */
+static inline bool phy_polling_mode(struct phy_device *phydev)
+{
+       return phydev->irq == PHY_POLL;
+}
+
+/**
  * phy_is_internal - Convenience function for testing if a PHY is internal
  * @phydev: the phy_device struct
  */