From mboxrd@z Thu Jan 1 00:00:00 1970 From: Dmitry Torokhov Subject: Re: [PATCH] Input: serio - re-add thaw (and add freeze) Date: Wed, 24 Feb 2010 23:38:49 -0800 Message-ID: <201002242338.49873.dmitry.torokhov@gmail.com> References: <4B69C7AA.7000904@tuffmail.co.uk> <20100216172233.GA14229@core.coreip.homeip.net> <20100225070302.GB1601@ucw.cz> Mime-Version: 1.0 Content-Type: Text/Plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Return-path: Received: from mail-gw0-f46.google.com ([74.125.83.46]:64548 "EHLO mail-gw0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752233Ab0BYHiy (ORCPT ); Thu, 25 Feb 2010 02:38:54 -0500 In-Reply-To: <20100225070302.GB1601@ucw.cz> Sender: linux-input-owner@vger.kernel.org List-Id: linux-input@vger.kernel.org To: Pavel Machek Cc: Alan Jenkins , linux-input@vger.kernel.org, linux-kernel On Wednesday 24 February 2010 11:03:03 pm Pavel Machek wrote: > On Tue 2010-02-16 09:22:33, Dmitry Torokhov wrote: > > On Tue, Feb 16, 2010 at 04:48:30PM +0000, Alan Jenkins wrote: > > > On 2/4/10, Alan Jenkins wrote: > > > > Dmitry Torokhov wrote: > > > >> On Wed, Feb 03, 2010 at 06:59:54PM +0000, Alan Jenkins wrote: > > > >>> 633aae2 "Input: i8042 - switch to using dev_pm_ops" > > > >>> removed handling for PMSG_THAW, causing obscure breakage. > > > >>> > > > >>> It can break if you press keys during hibernation, > > > >>> which causes subsequent keypresses to be lost - > > > >>> so you can't cancel s2disk by pressing backspace - > > > >>> and then just before system poweroff you get > > > >>> "psmouse.c: Failed to deactivate mouse". > > > >>> > > > >>> So let's add the thaw handler back. > > > >>> > > > >>> Also set the freeze handler. It looks like PMSG_FREEZE > > > >>> didn't do anything in the past, but I think that must > > > >>> have been an oversight. > > > >> > > > >> We do not need to do anything special at freeze time that is why > > > >> there wasn't freeze handler. And so thaw should be pretty much noop > > > >> as well. > > > > > > Ok, so I did some more mindless fiddling. It seems that all it needs > > > is to call the interrupt handler at thaw time. > > > > Yep, this makes more sense. If you happen to press the key(s) while > > interrupts are off the keyboard controller becomes "jammed". Your sign > > off please? > > Dmitry wants your Signed-off-by: line, to easily apply the patch. > Pavel, I already have it and it is in mainline. Thanks. -- Dmitry