On Fri, Feb 09, 2018 at 01:07:29PM +0100, Jonathan Neuschäfer 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 <redacted>
Cc: Albert Herranz <redacted>
Cc: Segher Boessenkool <redacted>

Reviewed-by: Segher Boessenkool <redacted>

Looks just fine to me :-)


Segher
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