On Wed, Dec 30, 2020 at 11:56:04PM +0100, Heiner Kallweit wrote: > --- a/drivers/pci/pci.c > +++ b/drivers/pci/pci.c > @@ -3024,7 +3024,9 @@ void pci_pm_init(struct pci_dev *dev) > u16 status; > u16 pmc; > > - pm_runtime_forbid(&dev->dev); > + if (pci_acpi_forbid_runtime_pm()) > + pm_runtime_forbid(&dev->dev); > + Generic PCI code usually does not call ACPI-specific functions directly, but rather through a pci_platform_pm_ops callback. FWIW, if platform_pci_power_manageable() returns true, it can probably be assumed that allowing runtime PM by default is okay. So as a first step, you may want to call that instead of adding a new callback. Thanks, Lukas
