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SubjectRe: [PATCH] ath9k: Convert to new PCI PM framework
Date
On Saturday, October 16, 2010, Paul Stewart wrote:
> On Fri, Oct 15, 2010 at 3:36 PM, Rafael J. Wysocki <rjw@sisk.pl> wrote:
> > From: Rafael J. Wysocki <rjw@sisk.pl>
> >
> > The ath9k driver uses the legacy PCI power management (suspend
> > and resume) callbacks that apparently cause intermittent problems
> > to happen (the adapter sometimes doesn't resume correctly on my
> > Acer Ferrari One). Make it use the new PCI PM and let the PCI core
> > code handle the PCI-specific details of power transitions.
> I'm curious. What sort of behavior did you get when the device fails
> to resume correctly? Every now and then I've been getting bad
> accesses to 0x7000 every now and then -- after that any reads to PCI
> registers return all f's.

Yes, this sort of matches my experience. Even the config space isn't
really accessible after a failure to resume.

Thanks,
Rafael


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