linux-kernel - Re: [PATCH] Quirk to fix suspend/resume on Lenovo Edge 11,13,14,15

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Message-ID: <20110113192825.GC30866@kryptos.osrc.amd.com>
Date:	Thu, 13 Jan 2011 20:28:25 +0100
From:	Borislav Petkov <bp@...64.org>
To:	Thomas Gleixner <tglx@...utronix.de>
Cc:	Matthew Garrett <mjg59@...f.ucam.org>,
	Manoj Iyer <manoj.iyer@...onical.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"Rafael J. Wysocki" <rjw@...k.pl>,
	"Herrmann3, Andreas" <Andreas.Herrmann3@....com>
Subject: Re: [PATCH] Quirk to fix suspend/resume on Lenovo Edge 11,13,14,15

On Thu, Jan 13, 2011 at 08:13:42PM +0100, Thomas Gleixner wrote:
> > Well, Andreas did boot with 'hpet=verbose' on an affected machine here
> > and did a suspend/resume and the hpet config registers looked ok before
> > suspend and after resume. It might be that the HPET is temporarily
> > "insane" while resume lasts but we don't have any hard facts confirming
> 
> And you have no explanation at all why applying the irq pin routing
> quirk makes HPETs temporal insanity go away magically :)

But after the HPET counter wraps around, the machine is alive again.
Which means that the IRQ0 pin2 override is only temporarily needed after
resume... Strange.

-- 
Regards/Gruss,
Boris.

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