From: Kunihiko Hayashi <hayashi.kunih...@socionext.com> Date: Tue, 18 Dec 2018 16:57:04 +0900
> Even though the link is down before entering hibernation, > there is an issue that the network interface always links up after resuming > from hibernation. > > If the link is still down before enabling the network interface, > and after resuming from hibernation, the phydev->state is forcibly set > to PHY_UP in mdio_bus_phy_restore(), and the link becomes up. > > In suspend sequence, only if the PHY is attached, mdio_bus_phy_suspend() > calls phy_stop_machine(), and mdio_bus_phy_resume() calls > phy_start_machine(). > In resume sequence, it's enough to do the same as mdio_bus_phy_resume() > because the state has been preserved. > > This patch fixes the issue by calling phy_start_machine() in > mdio_bus_phy_restore() in the same way as mdio_bus_phy_resume(). > > Suggested-by: Heiner Kallweit <hkallwe...@gmail.com> > Signed-off-by: Kunihiko Hayashi <hayashi.kunih...@socionext.com> Applied and queued up for -stable.
