Take a look at what one of the gpio controllers do. Eg ar71xx_gpio.c.
You have to implement those methods.

(I think someone did a GPIO controller thing for some AMD CPU too?)


On 11 June 2016 at 21:59, Lundberg, Johannes
<johan...@brilliantservice.co.jp> wrote:
> Hi
> I want to port the pinctrl-cherryview driver from Linux.
> I've seen there is the gpiobus and a controller gpioc, can any of these be
> leverage when porting pinctrl?
> What is the recommend way to proceed?
> Thanks!
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