Messages in this thread | | | Subject | Re: [PATCH 1/2] PCI: Add a helper to check Power Resource Requirements _PR3 existence | From | Kai-Heng Feng <> | Date | Wed, 28 Aug 2019 00:58:28 +0800 |
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at 23:25, Takashi Iwai <tiwai@suse.de> wrote:
> On Tue, 27 Aug 2019 15:47:55 +0200, > Kai-Heng Feng wrote: >> A driver may want to know the existence of _PR3, to choose different >> runtime suspend behavior. A user will be add in next patch. >> >> This is mostly the same as nouveau_pr3_present(). > > Then it'd be nice to clean up the nouveau part, too?
nouveau_pr3_present() may call pci_d3cold_disable(), and my intention is to only check the presence of _PR3 (i.e. a dGPU) without touching anything.
Kai-Heng
> > > thanks, > > Takashi
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