From 481b5d938b4a60f052d7e15965a8417125e0d39f Mon Sep 17 00:00:00 2001 From: Sebastian Hesselbarth Date: Fri, 13 Dec 2013 10:20:27 +0100 Subject: net: phy: provide phy_resume/phy_suspend helpers This adds helper functions to resume and suspend a given phy_device by calling the corresponding driver callbacks if available. Signed-off-by: Sebastian Hesselbarth Acked-by: Mugunthan V N Reviewed-by: Florian Fainelli Signed-off-by: David S. Miller --- drivers/net/phy/phy_device.c | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+) (limited to 'drivers') diff --git a/drivers/net/phy/phy_device.c b/drivers/net/phy/phy_device.c index 5a619f0dcf73..91f17178f1b3 100644 --- a/drivers/net/phy/phy_device.c +++ b/drivers/net/phy/phy_device.c @@ -679,6 +679,30 @@ void phy_detach(struct phy_device *phydev) } EXPORT_SYMBOL(phy_detach); +int phy_suspend(struct phy_device *phydev) +{ + struct phy_driver *phydrv = to_phy_driver(phydev->dev.driver); + struct ethtool_wolinfo wol; + + /* If the device has WOL enabled, we cannot suspend the PHY */ + wol.cmd = ETHTOOL_GWOL; + phy_ethtool_get_wol(phydev, &wol); + if (wol.wolopts) + return -EBUSY; + + if (phydrv->suspend) + return phydrv->suspend(phydev); + return 0; +} + +int phy_resume(struct phy_device *phydev) +{ + struct phy_driver *phydrv = to_phy_driver(phydev->dev.driver); + + if (phydrv->resume) + return phydrv->resume(phydev); + return 0; +} /* Generic PHY support and helper functions */ -- cgit v1.2.3