phylib: Properly reinitialize PHYs after hibernation
Since hibernation assumes power loss, we should fully reinitialize
PHYs (including platform fixups), as if PHYs were just attached.
This patch factors phy_init_hw() out of phy_attach_direct(), then
converts mdio_bus to dev_pm_ops and adds an appropriate restore()
callback.
Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/phy/phy_device.c b/drivers/net/phy/phy_device.c
index b10fedd..8212b2b 100644
--- a/drivers/net/phy/phy_device.c
+++ b/drivers/net/phy/phy_device.c
@@ -378,6 +378,20 @@
}
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 @@
/* 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);