linux-kernel - Re: [linux-pm] [PATCH 0/8] Suspend block api (version 8)

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Date:	Wed, 26 May 2010 08:19:21 -0700
From:	Kevin Hilman <khilman@...prootsystems.com>
To:	Alan Cox <alan@...rguk.ukuu.org.uk>
Cc:	Florian Mickler <florian@...kler.org>,
	Vitaly Wool <vitalywool@...il.com>,
	Peter Zijlstra <peterz@...radead.org>,
	LKML <linux-kernel@...r.kernel.org>,
	Paul@...p1.linux-foundation.org, felipe.balbi@...ia.com,
	Linux OMAP Mailing List <linux-omap@...r.kernel.org>,
	Linux PM <linux-pm@...ts.linux-foundation.org>
Subject: Re: [linux-pm] [PATCH 0/8] Suspend block api (version 8)

Alan Cox <alan@...rguk.ukuu.org.uk> writes:

> [1] Note I disagree with Kevin here on static/dynamic power management.
> There are IMHO two types of PM but they are 'user invoked' and
> 'automatic'. "Static" simply means it's not been made fast enough yet but
> its just a policy divide dependant on the users 'acceptable' resume time
> (which for hard RT may just as well rule out some more usual power states)

Completely agree with this.

I used the static/dynamic names out of habit, but since on most
embedded devices, there is really no difference in hardware power
state, I agree that the difference is only a matter of wakeup latency.

Kevin

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