On Tue, 14 Apr 2020 16:27:25 +0200, Hui Wang wrote: > > Before the pci_driver->probe() is called, the pci subsystem calls > runtime_forbid() and runtime_get_sync() on this pci dev, so only call > runtime_put_autosuspend() is not enough to enable the runtime_pm on > this device. > > For controllers with vgaswitcheroo feature, the pci/quirks.c will call > runtime_allow() for this dev, then the controllers could enter > rt_idle/suspend/resume, but for non-vgaswitcheroo controllers like > Intel hda controllers, the runtime_pm is not enabled because the > runtime_allow() is not called. > > Since it is no harm calling runtime_allow() twice, here let hda > driver call runtime_allow() for all controllers. Then the runtime_pm > is enabled on all controllers after the put_autosuspend() is called. > > Signed-off-by: Hui Wang <hui.wang@xxxxxxxxxxxxx> Applied now. Thanks. Takashi
