[PATCH v3 0/4] gpio: aspeed: Fixes and support for sharing with co-processor

[Benjamin Herrenschmidt <benh@kernel.crashing.org>]

This series cleans up the register accessors a bit, adds missing ones,
fixes the access to the write latch and finally adds an interface
that a co-processor driver can use to change the owner of some of
the GPIO lines and arbitrate access to shared GPIO banks.

v2: - Address Joel comments
v3: - Adds Reviewed-by tags

NOTE: I haven't changed the inclusion of gpio/consumer.h and gpiolib.h
      as, according to my replies, I do actually need them. I'm happy
      to use an alternative if somebody can suggest a reasonable one.