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Date: Mon, 7 Aug 2017 02:38:07 +0200 From: "Rafael J. Wysocki" <rafael@...nel.org> To: Darren Hart <dvhart@...radead.org> Cc: "Rafael J. Wysocki" <rjw@...ysocki.net>, Mario Limonciello <mario.limonciello@...l.com>, AceLan Kao <acelan.kao@...onical.com>, Linux PM <linux-pm@...r.kernel.org>, LKML <linux-kernel@...r.kernel.org>, Platform Driver <platform-driver-x86@...r.kernel.org>, Len Brown <lenb@...nel.org>, Srinivas Pandruvada <srinivas.pandruvada@...ux.intel.com>, Andy Shevchenko <andriy.shevchenko@...ux.intel.com> Subject: Re: [PATCH] intel-vbtn: match power button on press rather than release On Mon, Aug 7, 2017 at 1:24 AM, Darren Hart <dvhart@...radead.org> wrote: > On Sun, Aug 06, 2017 at 12:20:22AM +0200, Rafael Wysocki wrote: >> On Saturday, August 5, 2017 10:57:53 PM CEST Darren Hart wrote: >> > On Sat, Aug 05, 2017 at 01:30:20AM +0200, Rafael Wysocki wrote: >> > > On Friday, August 4, 2017 7:29:53 PM CEST Darren Hart wrote: >> > > > 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 <mario.limonciello@...l.com> >> > > > >> > > > 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). >> > > >> > > Yes, it should, and I'm not sure if the original author's opinion matters here. >> > > >> > > The patch makes sense to everyone involved and fixes an annoying issue, so >> > > I don't see any real arguments against applying it. >> > > >> > > Please feel free to add my ACK to it if that helps. >> > >> > I always try to give those in MAINTAINERS a chance to respond, but I will queue >> > this up to fixes now. >> >> Thanks! > > Rafael, > > Merged to mainline (in case you were waiting on this for the dependent > patch you mentioned). Awesome, thanks!
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