From mboxrd@z Thu Jan  1 00:00:00 1970
From: Jonathan =?utf-8?Q?Neusch=C3=A4fer?= <j.neuschaefer@gmx.net>
Subject: Re: [PATCH v2 3/6] gpio: Add GPIO driver for Nintendo Wii
Date: Wed, 7 Feb 2018 13:54:34 +0100
Message-ID: <20180207125434.d7wogzlkfthzob5t@latitude>
References: <20180122050411.32460-1-j.neuschaefer@gmx.net>
 <20180122050411.32460-4-j.neuschaefer@gmx.net>
 <CACRpkdZLiw=e-XiS9cbQuJGJ2tJVV86qKaLCy2yG==FSENhAHw@mail.gmail.com>
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To: Linus Walleij <linus.walleij@linaro.org>
Cc: Jonathan =?utf-8?Q?Neusch=C3=A4fer?= <j.neuschaefer@gmx.net>, "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>, "linuxppc-dev@lists.ozlabs.org list" <linuxppc-dev@lists.ozlabs.org>, linux-gpio@vger.kernel.org, "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" <devicetree@vger.kernel.org>, Albert Herranz <albert_herranz@yahoo.es>, Segher Boessenkool <segher@kernel.crashing.org>
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On Wed, Feb 07, 2018 at 01:29:45PM +0100, Linus Walleij wrote:
> On Mon, Jan 22, 2018 at 6:04 AM, Jonathan Neusch=C3=A4fer
> <j.neuschaefer@gmx.net> wrote:
>=20
> > 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 Neusch=C3=A4fer <j.neuschaefer@gmx.net>
> > Cc: Albert Herranz <albert_herranz@yahoo.es>
> > Cc: Segher Boessenkool <segher@kernel.crashing.org>
> > ---
> >
> > v2:
>=20
> All looks very good to me, Andy had some additional comments,
> once addressed in v3 I will apply this.
>=20
> You only need to resend this patch as I already applied the DT
> bindings.

This driver can't be used until the resource mapping problem on PPC32
(see patch 1/6 and the related discussion) is solved or worked around
with out-of-tree patches (such as patch 1/6). Should I send v3 anyway?


Thanks,
Jonathan Neusch=C3=A4fer

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