On Wed, Feb 07, 2018 at 01:29:45PM +0100, Linus Walleij wrote:

On Mon, Jan 22, 2018 at 6:04 AM, Jonathan Neuschäfer
[off-list ref] wrote:

quoted

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@gmx.net>
Cc: Albert Herranz <redacted>
Cc: Segher Boessenkool <redacted>
---

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.

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 Neuschäfer