linux-kernel - Re: [PATCH v2 3/6] gpio: Add GPIO driver for Nintendo Wii

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Message-ID: <CACRpkdZLiw=e-XiS9cbQuJGJ2tJVV86qKaLCy2yG==FSENhAHw@mail.gmail.com>
Date:   Wed, 7 Feb 2018 13:29:45 +0100
From:   Linus Walleij <linus.walleij@...aro.org>
To:     Jonathan Neuschäfer <j.neuschaefer@....net>
Cc:     "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linuxppc-dev@...ts.ozlabs.org list" <linuxppc-dev@...ts.ozlabs.org>,
        linux-gpio@...r.kernel.org,
        "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" 
        <devicetree@...r.kernel.org>,
        Albert Herranz <albert_herranz@...oo.es>,
        Segher Boessenkool <segher@...nel.crashing.org>
Subject: Re: [PATCH v2 3/6] gpio: Add GPIO driver for Nintendo Wii

On Mon, Jan 22, 2018 at 6:04 AM, Jonathan Neuschäfer
<j.neuschaefer@....net> wrote:

> The Nintendo Wii's chipset (called "Hollywood") has a GPIO controller
> that supports a configurable number of pins (up to 32), interrupts, and
> some special mechanisms to share the controller between the system's
> security processor (an ARM926) and the PowerPC CPU. Pin multiplexing is
> not supported.
>
> This patch adds a basic driver for this GPIO controller. Interrupt
> support will come in a later patch.
>
> This patch is based on code developed by Albert Herranz and the GameCube
> Linux Team, file arch/powerpc/platforms/embedded6xx/hlwd-gpio.c,
> available at https://github.com/DeltaResero/GC-Wii-Linux-Kernels, but
> has grown quite dissimilar.
>
> Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@....net>
> Cc: Albert Herranz <albert_herranz@...oo.es>
> Cc: Segher Boessenkool <segher@...nel.crashing.org>
> ---
>
> v2:

All looks very good to me, Andy had some additional comments,
once addressed in v3 I will apply this.

You only need to resend this patch as I already applied the DT
bindings.

Yours,
Linus Walleij