diff options
| -rw-r--r-- | drivers/pci/pci-acpi.c | 16 |
1 files changed, 15 insertions, 1 deletions
diff --git a/drivers/pci/pci-acpi.c b/drivers/pci/pci-acpi.c index c2ab57705043..f8436d1c4d45 100644 --- a/drivers/pci/pci-acpi.c +++ b/drivers/pci/pci-acpi.c @@ -762,19 +762,33 @@ static void pci_acpi_setup(struct device *dev) return; device_set_wakeup_capable(dev, true); + /* + * For bridges that can do D3 we enable wake automatically (as + * we do for the power management itself in that case). The + * reason is that the bridge may have additional methods such as + * _DSW that need to be called. + */ + if (pci_dev->bridge_d3) + device_wakeup_enable(dev); + acpi_pci_wakeup(pci_dev, false); } static void pci_acpi_cleanup(struct device *dev) { struct acpi_device *adev = ACPI_COMPANION(dev); + struct pci_dev *pci_dev = to_pci_dev(dev); if (!adev) return; pci_acpi_remove_pm_notifier(adev); - if (adev->wakeup.flags.valid) + if (adev->wakeup.flags.valid) { + if (pci_dev->bridge_d3) + device_wakeup_disable(dev); + device_set_wakeup_capable(dev, false); + } } static bool pci_acpi_bus_match(struct device *dev) |