linux-kernel - Re: [PATCH 1/2] gpio: axp209: use correct register for GPIO input status

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Message-ID: <CAGb2v67h1kH9=MtvKTnzgTTbO6BK5Qb2sJ8uG5=mb1UWVBVSaQ@mail.gmail.com>
Date:   Thu, 24 Nov 2016 13:52:55 +0800
From:   Chen-Yu Tsai <wens@...e.org>
To:     Thomas Petazzoni <thomas.petazzoni@...e-electrons.com>
Cc:     Quentin Schulz <quentin.schulz@...e-electrons.com>,
        Linus Walleij <linus.walleij@...aro.org>,
        Alexandre Courbot <gnurou@...il.com>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Chen-Yu Tsai <wens@...e.org>,
        "linux-gpio@...r.kernel.org" <linux-gpio@...r.kernel.org>,
        devicetree <devicetree@...r.kernel.org>,
        linux-kernel <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 1/2] gpio: axp209: use correct register for GPIO input status

On Wed, Nov 23, 2016 at 9:45 PM, Thomas Petazzoni
<thomas.petazzoni@...e-electrons.com> wrote:
> Hello,
>
> On Wed, 23 Nov 2016 14:27:48 +0100, Quentin Schulz wrote:
>> The GPIO input status was read from control register
>> (AXP20X_GPIO[210]_CTRL) instead of status register (AXP20X_GPIO20_SS).
>>
>> Signed-off-by: Quentin Schulz <quentin.schulz@...e-electrons.com>
>
> This smells like a bug fix, so perhaps Cc: stable?

Presently there are no in-tree boards that use the GPIOs
as input. And the only user I see is the CHIP, for the headphone
jack detection. Again, not supported in mainline yet.

Not sure if there is value in sending it for stable.

ChenYu

>
> Thomas
> --
> Thomas Petazzoni, CTO, Free Electrons
> Embedded Linux and Kernel engineering
> http://free-electrons.com