From mboxrd@z Thu Jan  1 00:00:00 1970
From: Florian Mickler <florian@mickler.org>
Subject: Re: [linux-pm] [PATCH 0/8] Suspend block api (version 8)
Date: Sat, 29 May 2010 10:28:19 +0200
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To: Felipe Contreras <felipe.contreras@gmail.com>
Cc: Igor Stoppa <igor.stoppa@nokia.com>, ext Brian Swetland <swetland@google.com>, ext Matthew Garrett <mjg59@srcf.ucam.org>, Alan Cox <alan@lxorguk.ukuu.org.uk>, "tytso@mit.edu" <tytso@mit.edu>, Peter Zijlstra <peterz@infradead.org>, LKML <linux-kernel@vger.kernel.org>, Linux PM <linux-pm@lists.linux-foundation.org>, Thomas Gleixner <tglx@linutronix.de>, Linux OMAP Mailing List <linux-omap@vger.kernel.org>, "Balbi Felipe (Nokia-D/Helsinki)" <felipe.balbi@nokia.com>
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On Sat, 29 May 2010 02:42:35 +0300
=46elipe Contreras <felipe.contreras@gmail.com> wrote:

> On Fri, May 28, 2010 at 5:12 PM, Igor Stoppa <igor.stoppa@nokia.com> =
wrote:
> > ext Brian Swetland wrote:
> >> How is it flawed? =A0Serious question.
> >
> > I would avoid repeating all the good arguments given so far, but to=
 make it
> > short:
> >
> > * I believe runtime PM is a much better starting point (at least fo=
r the
> > type of HW targeted at mobile devices) because it mimics an always-=
on system
> > toward userspace, which requires less disruption in the way apps ar=
e
> > designed
>=20
> I agree.
>=20
> If I understand correctly, if we have a perfect user-space that only
> does work when strictly needed and trying to do it in bursts, then we
> would be reaching the lowest power state, and there would be no need
> for suspend. The problem is that Android's user-space is pretty far
> from that, so they said "let's segregate user-space and go to lower
> power mode anyway".

This has already been mentioned (who knew?): Android doesn't
want to depend on userspace for this.

Cheers,
=46lo