linux-kernel - Re: [RFCv2 PATCH 1/4] dt-bindings: bus: add Wiegand bus dt documentation

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Date:   Wed, 05 Oct 2022 21:18:50 -0500
From:   Rob Herring <robh@...nel.org>
To:     Martin Zaťovič <m.zatovic1@...il.com>
Cc:     linus.walleij@...aro.org, krzysztof.kozlowski+dt@...aro.org,
        brgl@...ev.pl, andersson@...nel.org, gregkh@...uxfoundation.org,
        saravanak@...gle.com, mani@...nel.org,
        linux-kernel@...r.kernel.org, linux-gpio@...r.kernel.org,
        hemantk@...eaurora.org, devicetree@...r.kernel.org,
        Michael.Srba@...nam.cz, robh+dt@...nel.org,
        jeffrey.l.hugo@...il.com
Subject: Re: [RFCv2 PATCH 1/4] dt-bindings: bus: add Wiegand bus dt documentation

On Wed, 05 Oct 2022 16:57:43 +0200, Martin Zaťovič wrote:
> This patch documents the devicetree entry for enabling Wiegand
> bus driver. The drivers that will use Wiegand bus driver shall
> create a sub-node of the documented node.
> 
> Signed-off-by: Martin Zaťovič <m.zatovic1@...il.com>
> ---
> Hello again,
> 
> this is the second round of RFC patches in an attempt to add Wiegand
> driver to linux kernel. Thank you for all the issues you have pointed
> out in the first round. I have tried to fix all of them and I have
> also implemented a Wiegand bus driver, that is now used by the GPIO
> driver itself - as suggested by Linus.
> 
> Any advice you have for me regarding the patches will be appreciated!
> 
> With regards,
> Martin Zaťovič
> ---
>  .../devicetree/bindings/bus/wiegand.yaml      | 50 +++++++++++++++++++
>  1 file changed, 50 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/bus/wiegand.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:
/builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/bus/wiegand.example.dtb: wiegand: 'wiegand-gpio' does not match any of the regexes: 'pinctrl-[0-9]+'
	From schema: /builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/bus/wiegand.yaml
/builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/bus/wiegand.example.dtb: wiegand: wiegand-gpio: {'compatible': ['wiegand,wiegand-gpio'], 'pinctrl-names': ['default'], 'pinctrl-0': [[4294967295]], 'data-hi-gpios': [[4294967295, 7, 6]], 'data-lo-gpios': [[4294967295, 6, 6]]} is not of type 'array'
	From schema: /usr/local/lib/python3.10/dist-packages/dtschema/schemas/gpio/gpio-consumer.yaml
Documentation/devicetree/bindings/bus/wiegand.example.dtb:0:0: /example-0/wiegand/wiegand-gpio: failed to match any schema with compatible: ['wiegand,wiegand-gpio']

doc reference errors (make refcheckdocs):

See https://patchwork.ozlabs.org/patch/

This check can fail if there are any dependencies. The base for a patch
series is generally the most recent rc1.

If you already ran 'make dt_binding_check' and didn't see the above
error(s), then make sure 'yamllint' is installed and dt-schema is up to
date:

pip3 install dtschema --upgrade

Please check and re-submit.