linux-kernel - Re: [PATCHv4 3/4] dt-bindings: wiegand: add GPIO bitbanged Wiegand controller

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Date:   Thu, 11 May 2023 07:30:45 +0200
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Martin Zaťovič <m.zatovic1@...il.com>
Cc:     arnd@...db.de, linus.walleij@...aro.org,
        jacek.lawrynowicz@...ux.intel.com, linux-kernel@...r.kernel.org,
        nipun.gupta@....com, conor+dt@...nel.org, geert+renesas@...der.be,
        krzysztof.kozlowski+dt@...aro.org, beanhuo@...ron.com,
        bvanassche@....org, ogabbay@...nel.org, linux@...y.sk,
        mwen@...lia.com, robh+dt@...nel.org, yangyicong@...ilicon.com,
        benjamin.tissoires@...hat.com, devicetree@...r.kernel.org,
        gregkh@...uxfoundation.org, masahiroy@...nel.org
Subject: Re: [PATCHv4 3/4] dt-bindings: wiegand: add GPIO bitbanged Wiegand
 controller

On Wed, 10 May 2023 18:22:42 +0200, Martin Zaťovič wrote:
> GPIO bitbanged Wiegand controller requires definitions of GPIO
> lines to be used on top of the common Wiegand properties. Wiegand
> utilizes two such lines - D0(low data line) and D1(high data line).
> 
> Acked-by: Linus Walleij <linus.walleij@...aro.org>
> Signed-off-by: Martin Zaťovič <m.zatovic1@...il.com>
> ---
>  .../bindings/wiegand/wiegand-gpio.yaml        | 51 +++++++++++++++++++
>  MAINTAINERS                                   |  5 ++
>  2 files changed, 56 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/wiegand/wiegand-gpio.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/wiegand/wiegand-gpio.yaml: Unable to find schema file matching $id: http://devicetree.org/schemas/wiegand/wiegand-controller.yaml
Documentation/devicetree/bindings/wiegand/wiegand-gpio.example.dts:20.21-29.11: Warning (unit_address_vs_reg): /example-0/wiegand@f00: node has a unit name, but no reg or ranges property
/builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/wiegand/wiegand-gpio.example.dtb: wiegand@f00: False schema does not allow {'compatible': ['wiegand-gpio'], 'pulse-len-us': [[50]], 'interval-len-us': [[2000]], 'frame-gap-us': [[2000]], 'data-lo-gpios': [[4294967295, 6, 6]], 'data-hi-gpios': [[4294967295, 7, 6]], '$nodename': ['wiegand@...']}
	From schema: /builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/wiegand/wiegand-gpio.yaml
/builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/wiegand/wiegand-gpio.example.dtb: wiegand@f00: Unevaluated properties are not allowed ('frame-gap-us', 'interval-len-us', 'pulse-len-us' were unexpected)
	From schema: /builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/wiegand/wiegand-gpio.yaml

See https://patchwork.ozlabs.org/patch/1779628

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.