asgardius/android_kernel_motorola_sm6225
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

Merge branch 'pm-pci'

Browse source 
* pm-pci:
  PCI / PM: Force devices to D0 in pci_pm_thaw_noirq()
This commit is contained in:
Rafael J. Wysocki 2017-12-20 15:12:40 +01:00
commit 63d15e8c2a
1 changed files with 6 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

7
drivers/pci/pci-driver.c
View file

@ -1012,7 +1012,12 @@ static int pci_pm_thaw_noirq(struct device *dev)
if (pci_has_legacy_pm_support(pci_dev))
return pci_legacy_resume_early(dev);
pci_update_current_state(pci_dev, PCI_D0);
/*
* pci_restore_state() requires the device to be in D0 (because of MSI
* restoration among other things), so force it into D0 in case the
* driver's "freeze" callbacks put it into a low-power state directly.
*/
pci_set_power_state(pci_dev, PCI_D0);
pci_restore_state(pci_dev);
if (drv && drv->pm && drv->pm->thaw_noirq)