linux-kernel - Re: [PATCH 2/2] dt-bindings: clock: ehrpwm: Remove unneeded syscon compatible

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Date:   Wed, 17 May 2023 09:53:10 +0200
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Andrew Davis <afd@...com>
Cc:     Michael Turquette <mturquette@...libre.com>,
        Stephen Boyd <sboyd@...nel.org>, devicetree@...r.kernel.org,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        linux-clk@...r.kernel.org, linux-kernel@...r.kernel.org,
        Rob Herring <robh+dt@...nel.org>,
        Vignesh Raghavendra <vigneshr@...com>
Subject: Re: [PATCH 2/2] dt-bindings: clock: ehrpwm: Remove unneeded syscon
 compatible

On Tue, 16 May 2023 13:46:26 -0500, Andrew Davis wrote:
> This node's register space is not accessed by any other node, which
> is the traditional use for the "syscon" hint. It looks to have been
> added here to make use of a Linux kernel helper syscon_node_to_regmap().
> The Linux driver now uses a more appropriate helper that does not
> require the hint, so let's remove it from the binding.
> 
> Signed-off-by: Andrew Davis <afd@...com>
> ---
>  .../devicetree/bindings/clock/ti,am654-ehrpwm-tbclk.yaml     | 5 ++---
>  1 file changed, 2 insertions(+), 3 deletions(-)
> 

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/mfd/ti,j721e-system-controller.example.dtb: scm-conf@...000: clock-controller@...0:compatible: ['ti,am654-ehrpwm-tbclk', 'syscon'] is too long
	From schema: /builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/mfd/ti,j721e-system-controller.yaml
/builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/mfd/ti,j721e-system-controller.example.dtb: clock-controller@...0: compatible: ['ti,am654-ehrpwm-tbclk', 'syscon'] is too long
	From schema: /builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/clock/ti,am654-ehrpwm-tbclk.yaml

See https://patchwork.ozlabs.org/patch/1782200

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.