5.0-stable review patch. If anyone has any objections, please let me know.
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From: Mika Westerberg mika.westerberg@linux.intel.com
commit c528f7bd362b097eeeafa6fbbeccd9750b79c7ba upstream.
This reverts commit 0e157e52860441cb26051f131dd0b5ae3187a07b.
Heiner reported that the commit in question prevents his network adapter from triggering PME and waking up when network cable is plugged.
The commit tried to prevent root port waking up from D3cold immediately but looks like disabing root port PME interrupt is not the right way to fix that issue so revert it now. The patch following proposes an alternative solution to that issue.
Link: https://bugzilla.kernel.org/show_bug.cgi?id=202103 Fixes: 0e157e528604 ("PCI/PME: Implement runtime PM callbacks") Reported-by: Heiner Kallweit hkallweit1@gmail.com Tested-by: Heiner Kallweit hkallweit1@gmail.com Signed-off-by: Mika Westerberg mika.westerberg@linux.intel.com Signed-off-by: Bjorn Helgaas bhelgaas@google.com Acked-by: Rafael J. Wysocki rafael.j.wysocki@intel.com CC: stable@vger.kernel.org # v4.20+ Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- drivers/pci/pcie/pme.c | 27 --------------------------- 1 file changed, 27 deletions(-)
--- a/drivers/pci/pcie/pme.c +++ b/drivers/pci/pcie/pme.c @@ -432,31 +432,6 @@ static void pcie_pme_remove(struct pcie_ kfree(get_service_data(srv)); }
-static int pcie_pme_runtime_suspend(struct pcie_device *srv) -{ - struct pcie_pme_service_data *data = get_service_data(srv); - - spin_lock_irq(&data->lock); - pcie_pme_interrupt_enable(srv->port, false); - pcie_clear_root_pme_status(srv->port); - data->noirq = true; - spin_unlock_irq(&data->lock); - - return 0; -} - -static int pcie_pme_runtime_resume(struct pcie_device *srv) -{ - struct pcie_pme_service_data *data = get_service_data(srv); - - spin_lock_irq(&data->lock); - pcie_pme_interrupt_enable(srv->port, true); - data->noirq = false; - spin_unlock_irq(&data->lock); - - return 0; -} - static struct pcie_port_service_driver pcie_pme_driver = { .name = "pcie_pme", .port_type = PCI_EXP_TYPE_ROOT_PORT, @@ -464,8 +439,6 @@ static struct pcie_port_service_driver p
.probe = pcie_pme_probe, .suspend = pcie_pme_suspend, - .runtime_suspend = pcie_pme_runtime_suspend, - .runtime_resume = pcie_pme_runtime_resume, .resume = pcie_pme_resume, .remove = pcie_pme_remove, };