linux-kernel - Re: [linux-pm] suspend blockers & Android integration

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Date:	Sun, 6 Jun 2010 14:34:19 +0100
From:	Matthew Garrett <mjg59@...f.ucam.org>
To:	Alan Cox <alan@...rguk.ukuu.org.uk>
Cc:	Florian Mickler <florian@...kler.org>,
	Vitaly Wool <vitalywool@...il.com>,
	Brian Swetland <swetland@...gle.com>,
	Arve Hjønnevåg <arve@...roid.com>,
	Arjan van de Ven <arjan@...radead.org>, tytso@....edu,
	Peter Zijlstra <peterz@...radead.org>,
	"H. Peter Anvin" <hpa@...or.com>,
	LKML <linux-kernel@...r.kernel.org>, Neil Brown <neilb@...e.de>,
	James Bottomley <James.Bottomley@...e.de>,
	Linux PM <linux-pm@...ts.linux-foundation.org>,
	Ingo Molnar <mingo@...e.hu>,
	Linux OMAP Mailing List <linux-omap@...r.kernel.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Felipe Balbi <felipe.balbi@...ia.com>
Subject: Re: [linux-pm] suspend blockers & Android integration

On Sun, Jun 06, 2010 at 12:05:57PM +0100, Alan Cox wrote:
> On Sun, 6 Jun 2010 12:46:01 +0200
> Florian Mickler <florian@...kler.org> wrote:
> > That is not true. While the kernel is not suspended it does
> > runtime pm.
> 
> On several of our platforms runtime PM already includes suspend so a
> suspend wakelock does interfere with existing power managemet at that
> level (not to mention the maintenance mess it causes).

No, it doesn't. Android on omap will enter the mpu/core off state from 
the idle loop even if a suspend block is held.

-- 
Matthew Garrett | mjg59@...f.ucam.org
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