linux-kernel - Re: [PATCH] ACPI: PM: Clear wake-up device GPEs before enabling

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Date:   Fri, 14 Jun 2019 15:27:26 +0200
From:   "Rafael J. Wysocki" <rafael@...nel.org>
To:     Mika Westerberg <mika.westerberg@...ux.intel.com>
Cc:     "Rafael J. Wysocki" <rjw@...ysocki.net>,
        Furquan Shaikh <furquan@...gle.com>,
        Len Brown <lenb@...nel.org>,
        ACPI Devel Maling List <linux-acpi@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Rajat Jain <rajatja@...gle.com>
Subject: Re: [PATCH] ACPI: PM: Clear wake-up device GPEs before enabling

On Fri, Jun 14, 2019 at 12:45 PM Mika Westerberg
<mika.westerberg@...ux.intel.com> wrote:
>
> On Thu, Jun 13, 2019 at 10:24:41PM +0200, Rafael J. Wysocki wrote:
> > This patch may cause events to be missed if the GPE.  I guess what you reall mean is
> > something like the patch below.
> >
> > This should allow the kernel to see the events generated before the GPEs are
> > implicitly enabled, but it should clear them for the explicit users of acpi_enable_gpe().
> >
> > Mika, what do you think?
>
> Looks good to me. I also tested this with two TBT systems (Skull Canyon
> NUC and Dell XPS 9370) using ACPI hotplug and it did not cause any
> problems if I boot the system with device connected.

Awesome, thanks!

I'll add a changelog to it and post a full version over the weekend or
early next week.