Hi Rob,

On 1.6.2021 16.32, Rob Herring wrote:

On Sun, 30 May 2021 19:13:32 +0300, Mauri Sandberg wrote:

quoted

Add documentation for a general GPIO multiplexer.

Signed-off-by: Mauri Sandberg <redacted>
Tested-by: Drew Fustini <redacted>
Reviewed-by: Drew Fustini <redacted>
---
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