Re: [PATCH v4 1/2] dt-bindings: gpio-mux-input: add documentation

[Mauri Sandberg]

Hi Rob,

On 1.6.2021 16.32, Rob Herring wrote:
> On Sun, 30 May 2021 19:13:32 +0300, Mauri Sandberg wrote:
> > Add documentation for a general GPIO multiplexer.
> >
> > Signed-off-by: Mauri Sandberg <maukka@xxxxxxxxxxxx>
> > Tested-by: Drew Fustini <drew@xxxxxxxxxxxxxxx>
> > Reviewed-by: Drew Fustini <drew@xxxxxxxxxxxxxxx>
> > ---
> > v3 -> v4:
> >   - Changed author email
> >   - Included Tested-by and Reviewed-by from Drew
> > v2 -> v3: added a complete example on dual 4-way multiplexer
> > v1 -> v2: added a little bit more text in the binding documenation
> > ---
> >   .../bindings/gpio/gpio-mux-input.yaml         | 75 +++++++++++++++++++
> >   1 file changed, 75 insertions(+)
> >   create mode 100644 Documentation/devicetree/bindings/gpio/gpio-mux-input.yaml
>
> My bot found errors running 'make DT_CHECKER_FLAGS=-m dt_binding_check'
> on your patch (DT_CHECKER_FLAGS is new in v5.13):
>
> yamllint warnings/errors:
>
> dtschema/dtc warnings/errors:
> Documentation/devicetree/bindings/gpio/gpio-mux-input.example.dt.yaml:0:0: /example-0/mux-controller: failed to match any schema with compatible: ['gpio-mux']
> /builds/robherring/linux-dt-review/Documentation/devicetree/bindings/gpio/gpio-mux-input.example.dt.yaml: key-mux1: 'mux-controls' does not match any of the regexes: 'pinctrl-[0-9]+'
> 	From schema: /builds/robherring/linux-dt-review/Documentation/devicetree/bindings/gpio/gpio-mux-input.yaml
> /builds/robherring/linux-dt-review/Documentation/devicetree/bindings/gpio/gpio-mux-input.example.dt.yaml: key-mux2: 'mux-controls' does not match any of the regexes: 'pinctrl-[0-9]+'
> 	From schema: /builds/robherring/linux-dt-review/Documentation/devicetree/bindings/gpio/gpio-mux-input.yaml

These look like they could be caused by gpio-mux bindings [2], which 
this depends on, not being formulated in yaml. Should it be addressed 
before carrying on?

Thanks,
Mauri

[2] 
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/Documentation/devicetree/bindings/mux/gpio-mux.txt