Re: [PATCH 5/5] dt-bindings: pinctrl: dw: move sps,dwapb-gpio.txt to pinctrl

[Rob Herring <robh@xxxxxxxxxx>]

On Wed, Dec 04, 2019 at 02:52:59PM +0100, Clément Leger wrote:
> 
> ----- On 4 Dec, 2019, at 13:45, Andy Shevchenko andy.shevchenko@xxxxxxxxx wrote:
> 
> > On Wed, Dec 4, 2019 at 12:13 PM Clement Leger <cleger@xxxxxxxxx> wrote:
> >>
> >> Since the driver has been moved to pinctrl and now supports it, move the
> >> documentation into pinctrl folder. In the same time, add documentation
> >> for pinctrl properties such has snps,has-pinctrl and description of pin
> >> alternate functions.
> > 
> >> +- snps,has-pinctrl : If present, register the pinctrl controller.
> > 
> > I'm wondering why we can't always assume pin control?
> 
> This hardware IP is configured when instantiated to include support for
> muxing. If configured without support, the registers will exists but won't
> configure anything.
> I guess that it's not really a problem but it will lead to unusable
> pin muxing.

Can't you determine this by the presence of child nodes?

Rob