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| author | Bjorn Helgaas <bhelgaas@google.com> | 2019-10-13 01:15:57 +0300 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2019-11-21 02:33:15 +0300 |
| commit | f7b32a86e455b035dd45a334c203abf6fe118cf3 (patch) | |
| tree | ce57055881e39f45dbb07f3fae5e3de860b3522e /drivers/pci/pci-driver.c | |
| parent | ec6a75ef8e33fe33f963b916fd902c52a0be33ff (diff) | |
| download | linux-f7b32a86e455b035dd45a334c203abf6fe118cf3.tar.xz | |
PCI/PM: Run resume fixups before disabling wakeup events
pci_pm_resume() and pci_pm_restore() call pci_pm_default_resume(), which
runs resume fixups before disabling wakeup events:
static void pci_pm_default_resume(struct pci_dev *pci_dev)
{
pci_fixup_device(pci_fixup_resume, pci_dev);
pci_enable_wake(pci_dev, PCI_D0, false);
}
pci_pm_runtime_resume() does both of these, but in the opposite order:
pci_enable_wake(pci_dev, PCI_D0, false);
pci_fixup_device(pci_fixup_resume, pci_dev);
We should always use the same ordering unless there's a reason to do
otherwise. Change pci_pm_runtime_resume() to call pci_pm_default_resume()
instead of open-coding this, so the fixups are always done before disabling
wakeup events.
pci_pm_default_resume() is called from pci_pm_runtime_resume(), which is
under #ifdef CONFIG_PM. If SUSPEND and HIBERNATION are disabled, PM_SLEEP
is disabled also, so move pci_pm_default_resume() from #ifdef
CONFIG_PM_SLEEP to #ifdef CONFIG_PM.
Link: https://lore.kernel.org/r/20191014230016.240912-5-helgaas@kernel.org
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/pci/pci-driver.c')
| -rw-r--r-- | drivers/pci/pci-driver.c | 16 |
1 files changed, 7 insertions, 9 deletions
diff --git a/drivers/pci/pci-driver.c b/drivers/pci/pci-driver.c index 0c3086793e4e..abee2a790a10 100644 --- a/drivers/pci/pci-driver.c +++ b/drivers/pci/pci-driver.c @@ -517,6 +517,12 @@ static int pci_restore_standard_config(struct pci_dev *pci_dev) return 0; } +static void pci_pm_default_resume(struct pci_dev *pci_dev) +{ + pci_fixup_device(pci_fixup_resume, pci_dev); + pci_enable_wake(pci_dev, PCI_D0, false); +} + #endif #ifdef CONFIG_PM_SLEEP @@ -645,12 +651,6 @@ static int pci_legacy_resume(struct device *dev) /* Auxiliary functions used by the new power management framework */ -static void pci_pm_default_resume(struct pci_dev *pci_dev) -{ - pci_fixup_device(pci_fixup_resume, pci_dev); - pci_enable_wake(pci_dev, PCI_D0, false); -} - static void pci_pm_default_suspend(struct pci_dev *pci_dev) { /* Disable non-bridge devices without PM support */ @@ -992,7 +992,6 @@ static int pci_pm_resume(struct device *dev) #ifdef CONFIG_HIBERNATE_CALLBACKS - /* * pcibios_pm_ops - provide arch-specific hooks when a PCI device is doing * a hibernate transition @@ -1345,8 +1344,7 @@ static int pci_pm_runtime_resume(struct device *dev) return 0; pci_fixup_device(pci_fixup_resume_early, pci_dev); - pci_enable_wake(pci_dev, PCI_D0, false); - pci_fixup_device(pci_fixup_resume, pci_dev); + pci_pm_default_resume(pci_dev); if (pm && pm->runtime_resume) rc = pm->runtime_resume(dev); |