Messages in this thread Patch in this message |  | | From | Sebastian Hesselbarth <> | Subject | [PATCH v1 3/6] net: phy: provide phy_resume/phy_suspend helpers | Date | Sun, 8 Dec 2013 15:40:28 +0100 |
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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 <sebastian.hesselbarth@gmail.com> Acked-by: Mugunthan V N <mugunthanvnm@ti.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> --- Cc: David Miller <davem@davemloft.net> Cc: Florian Fainelli <f.fainelli@gmail.com> Cc: Mugunthan V N <mugunthanvnm@ti.com> Cc: netdev@vger.kernel.org Cc: linux-arm-kernel@lists.infradead.org Cc: linux-kernel@vger.kernel.org --- drivers/net/phy/phy_device.c | 24 ++++++++++++++++++++++++ include/linux/phy.h | 2 ++ 2 files changed, 26 insertions(+)
diff --git a/drivers/net/phy/phy_device.c b/drivers/net/phy/phy_device.c index d6447b3..6f0e9e4 100644 --- a/drivers/net/phy/phy_device.c +++ b/drivers/net/phy/phy_device.c @@ -625,6 +625,30 @@ 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 */ diff --git a/include/linux/phy.h b/include/linux/phy.h index 48a4dc3..1070ee3 100644 --- a/include/linux/phy.h +++ b/include/linux/phy.h @@ -538,6 +538,8 @@ struct phy_device *phy_device_create(struct mii_bus *bus, int addr, int phy_id, struct phy_device *get_phy_device(struct mii_bus *bus, int addr, bool is_c45); int phy_device_register(struct phy_device *phy); int phy_init_hw(struct phy_device *phydev); +int phy_suspend(struct phy_device *phydev); +int phy_resume(struct phy_device *phydev); struct phy_device * phy_attach(struct net_device *dev, const char *bus_id, phy_interface_t interface); struct phy_device *phy_find_first(struct mii_bus *bus); -- 1.8.4.rc3
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