Re: [RFC PATCH v2 00/13] arm/tegra: Initialize GPIO & pinmux from DT

Arnd Bergmann
2011-08-18T09:16:13Z

On Thursday 18 August 2011, Stephen Warren wrote:
> It looks like DT already supports the generic case for GPIO; each GPIO
> reference is of the form:
>
> <&gpio 69 0>
>
> and so each GPIO has a "parent" specified, and hence can come from a
> different controller.
>
> For drivers, this is all completely hidden by of_get_gpio().
>
> I imagine we'd just use the same pattern for pinmux. This would both
> support the general case, and end up being consistent with how GPIOs
> already work, so this seems like a win both ways.
>

Ah right. I had not seen the gpio binding yet, so that definitely works.

Arnd