Add a gpiolib and IRQ chip driver for Vybrid ARM SoC using the
Vybrid's GPIO and PORT module. The driver is instanced once per
each GPIO/PORT module pair and handles 32 GPIO's.
Signed-off-by: NStefan Agner <stefan@agner.ch>
Acked-by: NShawn Guo <shawn.guo@freescale.com>
Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>