diff options
| -rw-r--r-- | drivers/net/phy/mdio_bus.c | 50 | ||||
| -rw-r--r-- | drivers/net/phy/phy_device.c | 30 | ||||
| -rw-r--r-- | include/linux/phy.h | 1 |
3 files changed, 59 insertions, 22 deletions
diff --git a/drivers/net/phy/mdio_bus.c b/drivers/net/phy/mdio_bus.c index 49252d39090..e17b70291bb 100644 --- a/drivers/net/phy/mdio_bus.c +++ b/drivers/net/phy/mdio_bus.c @@ -264,6 +264,8 @@ static int mdio_bus_match(struct device *dev, struct device_driver *drv) (phydev->phy_id & phydrv->phy_id_mask)); } +#ifdef CONFIG_PM + static bool mdio_bus_phy_may_suspend(struct phy_device *phydev) { struct device_driver *drv = phydev->dev.driver; @@ -295,10 +297,7 @@ static bool mdio_bus_phy_may_suspend(struct phy_device *phydev) return true; } -/* Suspend and resume. Copied from platform_suspend and - * platform_resume - */ -static int mdio_bus_suspend(struct device * dev, pm_message_t state) +static int mdio_bus_suspend(struct device *dev) { struct phy_driver *phydrv = to_phy_driver(dev->driver); struct phy_device *phydev = to_phy_device(dev); @@ -318,7 +317,7 @@ static int mdio_bus_suspend(struct device * dev, pm_message_t state) return phydrv->suspend(phydev); } -static int mdio_bus_resume(struct device * dev) +static int mdio_bus_resume(struct device *dev) { struct phy_driver *phydrv = to_phy_driver(dev->driver); struct phy_device *phydev = to_phy_device(dev); @@ -338,11 +337,48 @@ no_resume: return 0; } +static int mdio_bus_restore(struct device *dev) +{ + struct phy_device *phydev = to_phy_device(dev); + struct net_device *netdev = phydev->attached_dev; + int ret; + + if (!netdev) + return 0; + + ret = phy_init_hw(phydev); + if (ret < 0) + return ret; + + /* The PHY needs to renegotiate. */ + phydev->link = 0; + phydev->state = PHY_UP; + + phy_start_machine(phydev, NULL); + + return 0; +} + +static struct dev_pm_ops mdio_bus_pm_ops = { + .suspend = mdio_bus_suspend, + .resume = mdio_bus_resume, + .freeze = mdio_bus_suspend, + .thaw = mdio_bus_resume, + .restore = mdio_bus_restore, +}; + +#define MDIO_BUS_PM_OPS (&mdio_bus_pm_ops) + +#else + +#define MDIO_BUS_PM_OPS NULL + +#endif /* CONFIG_PM */ + struct bus_type mdio_bus_type = { .name = "mdio_bus", .match = mdio_bus_match, - .suspend = mdio_bus_suspend, - .resume = mdio_bus_resume, + .pm = MDIO_BUS_PM_OPS, }; EXPORT_SYMBOL(mdio_bus_type); diff --git a/drivers/net/phy/phy_device.c b/drivers/net/phy/phy_device.c index b10fedd8214..8212b2b9342 100644 --- a/drivers/net/phy/phy_device.c +++ b/drivers/net/phy/phy_device.c @@ -378,6 +378,20 @@ void phy_disconnect(struct phy_device *phydev) } EXPORT_SYMBOL(phy_disconnect); +int phy_init_hw(struct phy_device *phydev) +{ + int ret; + + if (!phydev->drv || !phydev->drv->config_init) + return 0; + + ret = phy_scan_fixups(phydev); + if (ret < 0) + return ret; + + return phydev->drv->config_init(phydev); +} + /** * phy_attach_direct - attach a network device to a given PHY device pointer * @dev: network device to attach @@ -425,21 +439,7 @@ int phy_attach_direct(struct net_device *dev, struct phy_device *phydev, /* Do initial configuration here, now that * we have certain key parameters * (dev_flags and interface) */ - if (phydev->drv->config_init) { - int err; - - err = phy_scan_fixups(phydev); - - if (err < 0) - return err; - - err = phydev->drv->config_init(phydev); - - if (err < 0) - return err; - } - - return 0; + return phy_init_hw(phydev); } EXPORT_SYMBOL(phy_attach_direct); diff --git a/include/linux/phy.h b/include/linux/phy.h index b1368b8f657..7968defd2fa 100644 --- a/include/linux/phy.h +++ b/include/linux/phy.h @@ -447,6 +447,7 @@ struct phy_device* get_phy_device(struct mii_bus *bus, int addr); int phy_device_register(struct phy_device *phy); int phy_clear_interrupt(struct phy_device *phydev); int phy_config_interrupt(struct phy_device *phydev, u32 interrupts); +int phy_init_hw(struct phy_device *phydev); int phy_attach_direct(struct net_device *dev, struct phy_device *phydev, u32 flags, phy_interface_t interface); struct phy_device * phy_attach(struct net_device *dev, |