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Message-ID: <CAPpJ_ed5KPPu47ri3phnjKrToqJ8vSNV32zaRmBPLr3pq4M_4A@mail.gmail.com>
Date:   Wed, 4 Mar 2020 10:53:33 +0800
From:   Jian-Hong Pan <jian-hong@...lessm.com>
To:     "Rafael J. Wysocki" <rafael@...nel.org>
Cc:     "Rafael J. Wysocki" <rjw@...ysocki.net>,
        Daniel Drake <drake@...lessm.com>,
        Linux ACPI <linux-acpi@...r.kernel.org>,
        LKML <linux-kernel@...r.kernel.org>,
        Linux Upstreaming Team <linux@...lessm.com>
Subject: Re: [PATCH 0/6] ACPI: EC: Updates related to initialization

Rafael J. Wysocki <rafael@...nel.org> 於 2020年3月4日 週三 上午6:23寫道:
>
> On Tue, Mar 3, 2020 at 10:09 AM Rafael J. Wysocki <rafael@...nel.org> wrote:
> >
> > On Tue, Mar 3, 2020 at 8:29 AM Jian-Hong Pan <jian-hong@...lessm.com> wrote:
> > >
> > > Rafael J. Wysocki <rafael@...nel.org> 於 2020年3月2日 週一 下午7:45寫道:
> > > >
>
> [cut]
>
> > >
> > > Originally, ec_install_handlers() will return the returned value from
> > > install_gpio_irq_event_handler() from acpi_dev_gpio_irq_get(), which
> > > is -EPROBE_DEFER, instead of -ENXIO.  However, ec_install_handlers()
> > > returns -ENXIO directly if install_gpio_irq_event_handler() returns
> > > false in patch ("ACPI: EC: Consolidate event handler installation
> > > code").  Here needs some modification.
> >
> > Thanks, I forgot about the -EPROBE_DEFER case.
>
> The top-most commit in the git branch at
>
>  git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm.git \
>  acpi-ec-work
>
> has been updated to take that case into account (I think that it
> should be spelled out explicitly or it will be very easy to overlook
> in the future).
>
> Please test this one if possible.

Tested the commits on some laptops including ASUS UX434DA.  The
brightness hotkeys are working now.

Jian-Hong Pan

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