diff options
author | Dave Airlie <airlied@redhat.com> | 2009-03-28 20:22:18 -0400 |
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committer | Dave Airlie <airlied@redhat.com> | 2009-03-28 20:22:18 -0400 |
commit | 90f959bcb386da2c71613dcefc6a285e054a539e (patch) | |
tree | ee3e9dd4111d4aad12e579cb0c2c159114dff263 /drivers/net/phy/mdio_bus.c | |
parent | 41f13fe81dd1b08723ab9f3fc3c7f29cfa81f1a5 (diff) | |
parent | 07d43ba98621f08e252a48c96b258b4d572b0257 (diff) |
drm: merge Linux master into HEAD
Conflicts:
drivers/gpu/drm/drm_info.c
drivers/gpu/drm/drm_proc.c
drivers/gpu/drm/i915/i915_gem_debugfs.c
Diffstat (limited to 'drivers/net/phy/mdio_bus.c')
-rw-r--r-- | drivers/net/phy/mdio_bus.c | 56 |
1 files changed, 41 insertions, 15 deletions
diff --git a/drivers/net/phy/mdio_bus.c b/drivers/net/phy/mdio_bus.c index 811a637695c..b754020cbe7 100644 --- a/drivers/net/phy/mdio_bus.c +++ b/drivers/net/phy/mdio_bus.c @@ -21,6 +21,7 @@ #include <linux/interrupt.h> #include <linux/init.h> #include <linux/delay.h> +#include <linux/device.h> #include <linux/netdevice.h> #include <linux/etherdevice.h> #include <linux/skbuff.h> @@ -98,7 +99,7 @@ int mdiobus_register(struct mii_bus *bus) bus->dev.parent = bus->parent; bus->dev.class = &mdio_bus_class; bus->dev.groups = NULL; - dev_set_name(&bus->dev, bus->id); + dev_set_name(&bus->dev, "%s", bus->id); err = device_register(&bus->dev); if (err) { @@ -286,33 +287,58 @@ static int mdio_bus_match(struct device *dev, struct device_driver *drv) (phydev->phy_id & phydrv->phy_id_mask)); } +static bool mdio_bus_phy_may_suspend(struct phy_device *phydev) +{ + struct device_driver *drv = phydev->dev.driver; + struct phy_driver *phydrv = to_phy_driver(drv); + struct net_device *netdev = phydev->attached_dev; + + if (!drv || !phydrv->suspend) + return false; + + /* PHY not attached? May suspend. */ + if (!netdev) + return true; + + /* + * Don't suspend PHY if the attched netdev parent may wakeup. + * The parent may point to a PCI device, as in tg3 driver. + */ + if (netdev->dev.parent && device_may_wakeup(netdev->dev.parent)) + return false; + + /* + * Also don't suspend PHY if the netdev itself may wakeup. This + * is the case for devices w/o underlaying pwr. mgmt. aware bus, + * e.g. SoC devices. + */ + if (device_may_wakeup(&netdev->dev)) + return false; + + return true; +} + /* Suspend and resume. Copied from platform_suspend and * platform_resume */ static int mdio_bus_suspend(struct device * dev, pm_message_t state) { - int ret = 0; - struct device_driver *drv = dev->driver; - struct phy_driver *phydrv = to_phy_driver(drv); + struct phy_driver *phydrv = to_phy_driver(dev->driver); struct phy_device *phydev = to_phy_device(dev); - if (drv && phydrv->suspend && !device_may_wakeup(phydev->dev.parent)) - ret = phydrv->suspend(phydev); - - return ret; + if (!mdio_bus_phy_may_suspend(phydev)) + return 0; + return phydrv->suspend(phydev); } static int mdio_bus_resume(struct device * dev) { - int ret = 0; - struct device_driver *drv = dev->driver; - struct phy_driver *phydrv = to_phy_driver(drv); + struct phy_driver *phydrv = to_phy_driver(dev->driver); struct phy_device *phydev = to_phy_device(dev); - if (drv && phydrv->resume && !device_may_wakeup(phydev->dev.parent)) - ret = phydrv->resume(phydev); - - return ret; + if (!mdio_bus_phy_may_suspend(phydev)) + return 0; + return phydrv->resume(phydev); } struct bus_type mdio_bus_type = { |