Re: [PATCH] ath9k: Convert to new PCI PM framework

[Rafael J. Wysocki]

On Saturday, October 16, 2010, Paul Stewart wrote:
> On Fri, Oct 15, 2010 at 3:36 PM, Rafael J. Wysocki <rjw@xxxxxxx> wrote:
> > From: Rafael J. Wysocki <rjw@xxxxxxx>
> >
> > 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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