X-Git-Url: https://git.karo-electronics.de/?a=blobdiff_plain;f=drivers%2Fnet%2Fphy%2Fmdio_bus.c;h=095ef3fe369af5ebe08254384abc38176df1aef1;hb=803dd9c77ac3a08958535f2a1ad5890104e2c235;hp=20447741893ab49933bd79b83826d9e10cecb314;hpb=9272efa2036f3f06625effc3a709416044578a92;p=karo-tx-linux.git

diff --git a/drivers/net/phy/mdio_bus.c b/drivers/net/phy/mdio_bus.c
index 20447741893a..095ef3fe369a 100644
--- a/drivers/net/phy/mdio_bus.c
+++ b/drivers/net/phy/mdio_bus.c
@@ -443,9 +443,13 @@ static bool mdio_bus_phy_may_suspend(struct phy_device *phydev)
 	if (!drv || !phydrv->suspend)
 		return false;
 
-	/* PHY not attached? May suspend. */
+	/* PHY not attached? May suspend if the PHY has not already been
+	 * suspended as part of a prior call to phy_disconnect() ->
+	 * phy_detach() -> phy_suspend() because the parent netdev might be the
+	 * MDIO bus driver and clock gated at this point.
+	 */
 	if (!netdev)
-		return true;
+		return !phydev->suspended;
 
 	/* Don't suspend PHY if the attched netdev parent may wakeup.
 	 * The parent may point to a PCI device, as in tg3 driver.