Re: [PATCH 1/3] PCI: Rework default handling of suspend and resume

From: Rafael J. Wysocki
Date: Sat Dec 06 2008 - 16:51:38 EST

On Saturday, 6 of December 2008, Alan Cox wrote:
> > prefer it to go next. After it's been merged, I'm going to add the mandatory
> > suspend-resume things (save state and go to a low power state on suspend,
> > restore state on resume) to the new framework in a separete patch.
> >
> > Is this plan acceptable?
> I have at least two drivers I look after where if you put the device into
> D3 you lost. We survive because on a successful suspend/resume sequence
> the BIOS puts it back coming out of suspend but that means we must not
> put those devices into D3 ourselves ever - including during a suspend
> before we are 100% comitted to the suspend completing or reboot.

We can mark them as devices not to put into D3. There already is a
mechanism for that in place.

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