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Date: Fri, 7 May 2010 18:36:21 +0100
From: Matthew Garrett <mjg@redhat.com>
To: Daniel Walker <dwalker@fifo99.com>
Cc: Tony Lindgren <tony@atomide.com>, Brian Swetland <swetland@google.com>,
       Alan Stern <stern@rowland.harvard.edu>,
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       Andrew Morton <akpm@linux-foundation.org>
Subject: Re: [linux-pm] [PATCH 1/8] PM: Add suspend block api.
Message-ID: <20100507173621.GA23604@srcf.ucam.org>
References: <20100505234755.GI29604@atomide.com> <20100506134015.GA23426@srcf.ucam.org> <20100506170151.GA30928@atomide.com> <20100506170956.GA28104@srcf.ucam.org> <20100506171453.GC30928@atomide.com> <1273167311.20494.13.camel@c-dwalke-linux.qualcomm.com> <20100506183605.GF30928@atomide.com> <1273173110.20494.19.camel@c-dwalke-linux.qualcomm.com> <20100507020057.GG30928@atomide.com> <1273252837.3542.30.camel@c-dwalke-linux.qualcomm.com>
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On Fri, May 07, 2010 at 10:20:37AM -0700, Daniel Walker wrote:

> MSM doesn't have those power states unfortunately .. Your kind of
> suggesting what I was suggesting in that we should suspend in idle. Your
> hardware can do it easier tho since your have power states that are
> equal to suspend.

If your wakeup latencies are sufficiently low and you have fine-grained 
enough control over your hardware then suspend in idle is a reasonable 
thing to do - but if you have a userspace app that's spinning then 
that doesn't solve the issue.

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