From mboxrd@z Thu Jan 1 00:00:00 1970 From: Darren Hart Subject: Re: [PATCH] intel-vbtn: match power button on press rather than release Date: Fri, 4 Aug 2017 10:29:53 -0700 Message-ID: <20170804172953.GC21169@fury> References: <1501866006-24811-1-git-send-email-mario.limonciello@dell.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Received: from bombadil.infradead.org ([65.50.211.133]:47586 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751133AbdHDR34 (ORCPT ); Fri, 4 Aug 2017 13:29:56 -0400 Content-Disposition: inline In-Reply-To: <1501866006-24811-1-git-send-email-mario.limonciello@dell.com> Sender: linux-pm-owner@vger.kernel.org List-Id: linux-pm@vger.kernel.org To: Mario Limonciello Cc: AceLan Kao , linux-pm@vger.kernel.org, "Rafael J . Wysocki" , LKML , platform-driver-x86@vger.kernel.org, Len Brown , Srinivas Pandruvada On Fri, Aug 04, 2017 at 12:00:06PM -0500, Mario Limonciello wrote: > This fixes a problem where the system gets stuck in a loop > unable to wakeup via power button in s2idle. > > The problem happens because: > - press power button: > - system emits 0xc0 (power press), event ignored > - system emits 0xc1 (power release), event processed, > emited as KEY_POWER > - set wakeup_mode to true > - system goes to s2idle > - press power button > - system emits 0xc0 (power press), wakeup_mode is true, > system wakes > - system emits 0xc1 (power release), event processed, > emited as KEY_POWER > - system goes to s2idle again > > To avoid this situation, process the presses (which matches what > intel-hid does too). > > Verified on an Dell XPS 9365 > > Signed-off-by: Mario Limonciello This looks good to me - responding to the release is non-intuitive IMHO anyway. I'd like to see agreement from AceLan, but this should go into the 4.13 rc cycle (at rc3 currently). -- Darren Hart VMware Open Source Technology Center