linux-kernel - Re: [PATCH v2 3/8] dt-bindings: power: Add apple,pmgr-pwrstate binding

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Date:   Mon, 25 Oct 2021 13:16:53 -0500
From:   Rob Herring <robh@...nel.org>
To:     Hector Martin <marcan@...can.st>
Cc:     Alyssa Rosenzweig <alyssa@...enzweig.io>,
        Mark Kettenis <mark.kettenis@...all.nl>,
        linux-kernel@...r.kernel.org,
        "Rafael J. Wysocki" <rafael@...nel.org>,
        linux-arm-kernel@...ts.infradead.org, linux-pm@...r.kernel.org,
        linux-samsung-soc@...r.kernel.org, linux-serial@...r.kernel.org,
        devicetree@...r.kernel.org, Marc Zyngier <maz@...nel.org>,
        Linus Walleij <linus.walleij@...aro.org>,
        Mark Kettenis <kettenis@...nbsd.org>,
        Krzysztof Kozlowski <krzk@...nel.org>,
        Arnd Bergmann <arnd@...nel.org>,
        Philipp Zabel <p.zabel@...gutronix.de>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Rob Herring <robh+dt@...nel.org>,
        Johan Hovold <johan@...nel.org>
Subject: Re: [PATCH v2 3/8] dt-bindings: power: Add apple,pmgr-pwrstate binding

On Mon, 25 Oct 2021 23:47:13 +0900, Hector Martin wrote:
> This syscon child node represents a single SoC device controlled by the
> PMGR block. This layout allows us to declare all device power state
> controls (power/clock gating and reset) in the device tree, including
> dependencies, instead of hardcoding it into the driver. The register
> layout is uniform.
> 
> Each pmgr-pwrstate node provides genpd and reset features, to be
> consumed by downstream device nodes.
> 
> Future SoCs are expected to use backwards compatible registers, and the
> "apple,pmgr-pwrstate" represents any such interfaces (possibly with
> additional features gated by the more specific compatible), allowing
> them to be bound without driver updates. If a backwards incompatible
> change is introduced in future SoCs, it will require a new compatible,
> such as "apple,pmgr-pwrstate-v2".
> 
> Reviewed-by: Mark Kettenis <kettenis@...nbsd.org>
> Signed-off-by: Hector Martin <marcan@...can.st>
> ---
>  .../bindings/power/apple,pmgr-pwrstate.yaml   | 69 +++++++++++++++++++
>  1 file changed, 69 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/power/apple,pmgr-pwrstate.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:


doc reference errors (make refcheckdocs):
Documentation/devicetree/bindings/power/apple,pmgr-pwrstate.yaml: Documentation/devicetree/bindings/arm/apple/apple,pmgr.yaml

See https://patchwork.ozlabs.org/patch/1545800

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.