From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Rafael J. Wysocki" Subject: Re: [RFC][PATCH 00/11] Android PM extensions Date: Sun, 1 Feb 2009 02:32:21 +0100 Message-ID: <200902010232.22055.rjw@sisk.pl> References: <20090131074743.GA13633@bulgaria.corp.google.com> <200902010118.25810.rjw@sisk.pl> Mime-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Return-path: In-Reply-To: Content-Disposition: inline List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: linux-pm-bounces@lists.linux-foundation.org Errors-To: linux-pm-bounces@lists.linux-foundation.org To: Arve =?iso-8859-1?q?Hj=F8nnev=E5g?= Cc: Brian Swetland , linux-pm@lists.linux-foundation.org, Nigel Cunningham List-Id: linux-pm@vger.kernel.org On Sunday 01 February 2009, Arve Hj=F8nnev=E5g wrote: > On Sat, Jan 31, 2009 at 4:18 PM, Rafael J. Wysocki wrote: > > If the user forcibly puts the device into suspend, it's very much like = powering > > off. The kernel shouldn't prevent that from happening unless in error > > conditions. > = > No, when the phone is powered off, it is not expected to ring. When it > is suspended it is expected to ring. > = > > If incoming calls are supposed to wake up the system, then there are two > > possibilities: > > - the already started suspend sequence may be aborted and the system ma= y be put > > into the low power state, > = > I assume you mean high power state not low power state, or does low > power state mean early-suspend state. If so, locking a wakelock will > accomplish this. Actually, I meant the working state. Aborting suspend sequence always means go back to the working state. Also, I think the device that detected the incoming call should abort the suspend sequence by refusing to suspend. > > - the system may be suspended and then immediately woken up. > = > If you mean this as a general strategy, and not a specific outcome, > then it does not always work (for the reasons I have already stated). I meant a specific outcome. It may be impossible to abort suspend if the call comes in sufficiently late. Thanks, Rafael