[PATCH V4] bcma: use chipcommon node from DT for SoC GPIO chip

On Tuesday 30 September 2014 12:55:48 Rafa? Mi?ecki wrote:

This will allow us to define GPIO-attached devices (LEDs, buttons) in
the the device tree.

Signed-off-by: Rafa? Mi?ecki <zajec5@gmail.com>
---
This is based on top of
[PATCH v6] bcma: register bcma as device tree driver
that I hope will reach wireless-next git tree.

V2: Describe axi chilren and make gpio a child of chipcommon core.
V3: Make chipcommon a GPIO controller (avoid extra sub-child)
    Speed up finding OF node in driver_gpio.c
V4: Simplify setting of_node in driver_gpio.c

Acked-by: Arnd Bergmann <arnd@arndb.de>