On Fri, Mar 23, 2018 at 01:18:56PM +0200, Mika Westerberg wrote: > On Thu, Mar 22, 2018 at 02:36:30PM -0500, Bjorn Helgaas wrote: > > I hope we can avoid adding suspend_late/resume_early callbacks in > > struct pcie_port_service_driver, and I also hope we can avoid adding > > device links. Those both sound pretty complicated. > > > > Can you do something like the patch below, which does something > > similar for PME? > > AFAICT the core PCI PM code follows the same ordering than what PM core > does so it may be possible that not all service drivers get > resumed/suspended before other children (PCI buses). Basically this > would be the same than just using core PM ops in DPC driver (in which > case DPC specific things are still kept in DPC driver not in PCI core). I'm not sure I follow this. I assume the core PCI PM code guarantees that a bridge is suspended after its children and resumed before them. Are you saying that's not the case?
