diff options
Diffstat (limited to 'drivers/net/phy/phy.c')
| -rw-r--r-- | drivers/net/phy/phy.c | 40 |
1 files changed, 36 insertions, 4 deletions
diff --git a/drivers/net/phy/phy.c b/drivers/net/phy/phy.c index a2bfc82e95d7..97ff1278167b 100644 --- a/drivers/net/phy/phy.c +++ b/drivers/net/phy/phy.c @@ -591,16 +591,18 @@ int phy_mii_ioctl(struct phy_device *phydev, struct ifreq *ifr, int cmd) EXPORT_SYMBOL(phy_mii_ioctl); /** - * phy_start_aneg - start auto-negotiation for this PHY device + * phy_start_aneg_priv - start auto-negotiation for this PHY device * @phydev: the phy_device struct + * @sync: indicate whether we should wait for the workqueue cancelation * * Description: Sanitizes the settings (if we're not autonegotiating * them), and then calls the driver's config_aneg function. * If the PHYCONTROL Layer is operating, we change the state to * reflect the beginning of Auto-negotiation or forcing. */ -int phy_start_aneg(struct phy_device *phydev) +static int phy_start_aneg_priv(struct phy_device *phydev, bool sync) { + bool trigger = 0; int err; if (!phydev->drv) @@ -628,10 +630,40 @@ int phy_start_aneg(struct phy_device *phydev) } } + /* Re-schedule a PHY state machine to check PHY status because + * negotiation may already be done and aneg interrupt may not be + * generated. + */ + if (phy_interrupt_is_valid(phydev) && (phydev->state == PHY_AN)) { + err = phy_aneg_done(phydev); + if (err > 0) { + trigger = true; + err = 0; + } + } + out_unlock: mutex_unlock(&phydev->lock); + + if (trigger) + phy_trigger_machine(phydev, sync); + return err; } + +/** + * phy_start_aneg - start auto-negotiation for this PHY device + * @phydev: the phy_device struct + * + * Description: Sanitizes the settings (if we're not autonegotiating + * them), and then calls the driver's config_aneg function. + * If the PHYCONTROL Layer is operating, we change the state to + * reflect the beginning of Auto-negotiation or forcing. + */ +int phy_start_aneg(struct phy_device *phydev) +{ + return phy_start_aneg_priv(phydev, true); +} EXPORT_SYMBOL(phy_start_aneg); /** @@ -659,7 +691,7 @@ void phy_start_machine(struct phy_device *phydev) * state machine runs. */ -static void phy_trigger_machine(struct phy_device *phydev, bool sync) +void phy_trigger_machine(struct phy_device *phydev, bool sync) { if (sync) cancel_delayed_work_sync(&phydev->state_queue); @@ -1154,7 +1186,7 @@ void phy_state_machine(struct work_struct *work) mutex_unlock(&phydev->lock); if (needs_aneg) - err = phy_start_aneg(phydev); + err = phy_start_aneg_priv(phydev, false); else if (do_suspend) phy_suspend(phydev); |