diff options
author | Jakub Kicinski <kuba@kernel.org> | 2022-06-30 16:31:00 -0700 |
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committer | Jakub Kicinski <kuba@kernel.org> | 2022-06-30 16:31:00 -0700 |
commit | 0d8730f07c822a351a624462918c7109cdc7f402 (patch) | |
tree | 3539d4c7c098894f3b2d5f49134c8cfccc06aaca /drivers/net/phy/phy_device.c | |
parent | b7d78b46d5e8dc77c656c13885d31e931923b915 (diff) | |
parent | 5e8379351dbde61ea383e514f0f9ecb2c047cf4e (diff) | |
download | linux-stable-0d8730f07c822a351a624462918c7109cdc7f402.tar.gz linux-stable-0d8730f07c822a351a624462918c7109cdc7f402.tar.bz2 linux-stable-0d8730f07c822a351a624462918c7109cdc7f402.zip |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
drivers/net/ethernet/microchip/sparx5/sparx5_switchdev.c
9c5de246c1db ("net: sparx5: mdb add/del handle non-sparx5 devices")
fbb89d02e33a ("net: sparx5: Allow mdb entries to both CPU and ports")
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'drivers/net/phy/phy_device.c')
-rw-r--r-- | drivers/net/phy/phy_device.c | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/drivers/net/phy/phy_device.c b/drivers/net/phy/phy_device.c index 7885bceff773..a74b320f5b27 100644 --- a/drivers/net/phy/phy_device.c +++ b/drivers/net/phy/phy_device.c @@ -278,6 +278,15 @@ static __maybe_unused int mdio_bus_phy_suspend(struct device *dev) if (phydev->mac_managed_pm) return 0; + /* Wakeup interrupts may occur during the system sleep transition when + * the PHY is inaccessible. Set flag to postpone handling until the PHY + * has resumed. Wait for concurrent interrupt handler to complete. + */ + if (phy_interrupt_is_valid(phydev)) { + phydev->irq_suspended = 1; + synchronize_irq(phydev->irq); + } + /* We must stop the state machine manually, otherwise it stops out of * control, possibly with the phydev->lock held. Upon resume, netdev * may call phy routines that try to grab the same lock, and that may @@ -315,6 +324,20 @@ static __maybe_unused int mdio_bus_phy_resume(struct device *dev) if (ret < 0) return ret; no_resume: + if (phy_interrupt_is_valid(phydev)) { + phydev->irq_suspended = 0; + synchronize_irq(phydev->irq); + + /* Rerun interrupts which were postponed by phy_interrupt() + * because they occurred during the system sleep transition. + */ + if (phydev->irq_rerun) { + phydev->irq_rerun = 0; + enable_irq(phydev->irq); + irq_wake_thread(phydev->irq, phydev); + } + } + if (phydev->attached_dev && phydev->adjust_link) phy_start_machine(phydev); |