1 files changed, 14 insertions, 8 deletions

diff --git a/drivers/of/of_mdio.c b/drivers/of/of_mdio.c
index 875b7b6f0d2a..5b3c24f3cde5 100644
--- a/drivers/of/of_mdio.c
+++ b/drivers/of/of_mdio.c
@@ -24,7 +24,11 @@ MODULE_LICENSE("GPL");
 
 static void of_set_phy_supported(struct phy_device *phydev, u32 max_speed)
 {
-        phydev->supported |= PHY_DEFAULT_FEATURES;
+        /* The default values for phydev->supported are provided by the PHY
+         * driver "features" member, we want to reset to sane defaults fist
+         * before supporting higher speeds.
+         */
+        phydev->supported &= PHY_DEFAULT_FEATURES;
 
         switch (max_speed) {
         default:
@@ -44,7 +48,7 @@ static int of_mdiobus_register_phy(struct mii_bus *mdio, struct device_node *chi
 {
         struct phy_device *phy;
         bool is_c45;
-        int rc, prev_irq;
+        int rc;
         u32 max_speed = 0;
 
         is_c45 = of_device_is_compatible(child,
@@ -54,12 +58,14 @@ static int of_mdiobus_register_phy(struct mii_bus *mdio, struct device_node *chi
         if (!phy || IS_ERR(phy))
                 return 1;
 
-        if (mdio->irq) {
-                prev_irq = mdio->irq[addr];
-                mdio->irq[addr] =
-                        irq_of_parse_and_map(child, 0);
-                if (!mdio->irq[addr])
-                        mdio->irq[addr] = prev_irq;
+        rc = irq_of_parse_and_map(child, 0);
+        if (rc > 0) {
+                phy->irq = rc;
+                if (mdio->irq)
+                        mdio->irq[addr] = rc;
+        } else {
+                if (mdio->irq)
+                        phy->irq = mdio->irq[addr];
         }
 
         /* Associate the OF node with the device structure so it