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Date: Sat, 16 Oct 2010 21:52:24 +0200 From: "Rafael J. Wysocki" <rjw@...k.pl> To: Paul Stewart <pstew@...gle.com> Cc: "Luis R. Rodriguez" <lrodriguez@...eros.com>, LKML <linux-kernel@...r.kernel.org>, "Linux-pm mailing list" <linux-pm@...ts.linux-foundation.org>, linux-wireless@...r.kernel.org, ath9k-devel@...ema.h4ckr.net Subject: Re: [PATCH] ath9k: Convert to new PCI PM framework On Saturday, October 16, 2010, Paul Stewart wrote: > On Fri, Oct 15, 2010 at 3:36 PM, Rafael J. Wysocki <rjw@...k.pl> wrote: > > From: Rafael J. Wysocki <rjw@...k.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 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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