diff --git a/drivers/net/phy/phy.c b/drivers/net/phy/phy.c index 631ed33fe9d9..d12aa512b7f5 100644 --- a/drivers/net/phy/phy.c +++ b/drivers/net/phy/phy.c @@ -785,28 +785,27 @@ static int phy_enable_interrupts(struct phy_device *phydev) } /** - * phy_start_interrupts - request and enable interrupts for a PHY device + * phy_request_interrupt - request interrupt for a PHY device * @phydev: target phy_device struct * * Description: Request the interrupt for the given PHY. * If this fails, then we set irq to PHY_POLL. - * Otherwise, we enable the interrupts in the PHY. * This should only be called with a valid IRQ number. - * Returns 0 on success or < 0 on error. */ -int phy_start_interrupts(struct phy_device *phydev) +void phy_request_interrupt(struct phy_device *phydev) { - if (request_threaded_irq(phydev->irq, NULL, phy_interrupt, - IRQF_ONESHOT | IRQF_SHARED, - phydev_name(phydev), phydev) < 0) { - phydev_warn(phydev, "Can't get IRQ %d\n", phydev->irq); - phydev->irq = PHY_POLL; - return 0; - } + int err; - return phy_enable_interrupts(phydev); + err = request_threaded_irq(phydev->irq, NULL, phy_interrupt, + IRQF_ONESHOT | IRQF_SHARED, + phydev_name(phydev), phydev); + if (err) { + phydev_warn(phydev, "Error %d requesting IRQ %d, falling back to polling\n", + err, phydev->irq); + phydev->irq = PHY_POLL; + } } -EXPORT_SYMBOL(phy_start_interrupts); +EXPORT_SYMBOL(phy_request_interrupt); /** * phy_stop - Bring down the PHY link, and stop checking the status @@ -852,33 +851,34 @@ EXPORT_SYMBOL(phy_stop); */ void phy_start(struct phy_device *phydev) { - int err = 0; + int err; mutex_lock(&phydev->lock); - switch (phydev->state) { - case PHY_READY: - phydev->state = PHY_UP; - break; - case PHY_HALTED: - /* if phy was suspended, bring the physical link up again */ - __phy_resume(phydev); - - /* make sure interrupts are re-enabled for the PHY */ - if (phy_interrupt_is_valid(phydev)) { - err = phy_enable_interrupts(phydev); - if (err < 0) - break; - } - - phydev->state = PHY_RESUMING; - break; - default: - break; + if (phydev->state != PHY_READY && phydev->state != PHY_HALTED) { + WARN(1, "called from state %s\n", + phy_state_to_str(phydev->state)); + goto out; } - mutex_unlock(&phydev->lock); - phy_trigger_machine(phydev); + /* if phy was suspended, bring the physical link up again */ + __phy_resume(phydev); + + /* make sure interrupts are enabled for the PHY */ + if (phy_interrupt_is_valid(phydev)) { + err = phy_enable_interrupts(phydev); + if (err < 0) + goto out; + } + + if (phydev->state == PHY_READY) + phydev->state = PHY_UP; + else + phydev->state = PHY_RESUMING; + + phy_start_machine(phydev); +out: + mutex_unlock(&phydev->lock); } EXPORT_SYMBOL(phy_start); diff --git a/drivers/net/phy/phy_device.c b/drivers/net/phy/phy_device.c index 509d9402fa9a..891e0178b97f 100644 --- a/drivers/net/phy/phy_device.c +++ b/drivers/net/phy/phy_device.c @@ -951,9 +951,8 @@ int phy_connect_direct(struct net_device *dev, struct phy_device *phydev, return rc; phy_prepare_link(phydev, handler); - phy_start_machine(phydev); - if (phydev->irq > 0) - phy_start_interrupts(phydev); + if (phy_interrupt_is_valid(phydev)) + phy_request_interrupt(phydev); return 0; } diff --git a/drivers/net/phy/phylink.c b/drivers/net/phy/phylink.c index 7d9910da5018..2e21ce42e388 100644 --- a/drivers/net/phy/phylink.c +++ b/drivers/net/phy/phylink.c @@ -676,9 +676,8 @@ static int phylink_bringup_phy(struct phylink *pl, struct phy_device *phy) __ETHTOOL_LINK_MODE_MASK_NBITS, pl->supported, __ETHTOOL_LINK_MODE_MASK_NBITS, phy->advertising); - phy_start_machine(phy); - if (phy->irq > 0) - phy_start_interrupts(phy); + if (phy_interrupt_is_valid(phy)) + phy_request_interrupt(phy); return 0; } diff --git a/include/linux/phy.h b/include/linux/phy.h index 1f3873a2ff29..70f83d0d7469 100644 --- a/include/linux/phy.h +++ b/include/linux/phy.h @@ -1047,7 +1047,7 @@ void phy_ethtool_ksettings_get(struct phy_device *phydev, int phy_ethtool_ksettings_set(struct phy_device *phydev, const struct ethtool_link_ksettings *cmd); int phy_mii_ioctl(struct phy_device *phydev, struct ifreq *ifr, int cmd); -int phy_start_interrupts(struct phy_device *phydev); +void phy_request_interrupt(struct phy_device *phydev); void phy_print_status(struct phy_device *phydev); int phy_set_max_speed(struct phy_device *phydev, u32 max_speed); void phy_remove_link_mode(struct phy_device *phydev, u32 link_mode);