Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1761160AbYGBBJm (ORCPT ); Tue, 1 Jul 2008 21:09:42 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1758227AbYGBBJd (ORCPT ); Tue, 1 Jul 2008 21:09:33 -0400 Received: from cavan.codon.org.uk ([93.93.128.6]:47044 "EHLO vavatch.codon.org.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1758197AbYGBBJd (ORCPT ); Tue, 1 Jul 2008 21:09:33 -0400 Date: Wed, 2 Jul 2008 02:08:57 +0100 From: Matthew Garrett To: Uwe =?iso-8859-1?Q?Kleine-K=F6nig?= Cc: "Rafael J. Wysocki" , Andrew Morton , David Brownell , Linus Torvalds , Pavel Machek , "linux-kernel@vger.kernel.org" Subject: Re: A minimally power-aware driver treats all messages as SUSPEND? Message-ID: <20080702010857.GA27031@srcf.ucam.org> References: <20080701072911.GA6564@digi.com> <200807011617.55501.rjw@sisk.pl> <20080701151415.GA17688@digi.com> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <20080701151415.GA17688@digi.com> User-Agent: Mutt/1.5.12-2006-07-14 X-SA-Exim-Connect-IP: X-SA-Exim-Mail-From: mjg59@codon.org.uk X-SA-Exim-Scanned: No (on vavatch.codon.org.uk); SAEximRunCond expanded to false Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 695 Lines: 17 On Tue, Jul 01, 2008 at 05:14:15PM +0200, Uwe Kleine-K?nig wrote: > With that I might have to do less on SUSPEND because some state might be > preserved after the machine comes up again. The only hardware state guaranteed by ACPI is the contents of RAM. It's valid for the platform to cut the power rails to everything else, so from a driver point of view it's almost always equivalent to hibernation. -- Matthew Garrett | mjg59@srcf.ucam.org -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/