linux-kernel - Re: [PATCH v13 04/10] dt-bindings: soc: qcom: cpr3: Add bindings for CPR3 driver

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Date:   Tue, 8 Aug 2023 18:20:18 +0200
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Konrad Dybcio <konrad.dybcio@...aro.org>,
        AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>,
        Andy Gross <agross@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Viresh Kumar <vireshk@...nel.org>, Nishanth Menon <nm@...com>,
        Stephen Boyd <sboyd@...nel.org>,
        Niklas Cassel <nks@...wful.org>,
        Liam Girdwood <lgirdwood@...il.com>,
        Mark Brown <broonie@...nel.org>,
        Conor Dooley <conor+dt@...nel.org>,
        "Rafael J. Wysocki" <rafael@...nel.org>,
        Viresh Kumar <viresh.kumar@...aro.org>,
        Ulf Hansson <ulf.hansson@...aro.org>
Cc:     Robert Marko <robimarko@...il.com>, linux-kernel@...r.kernel.org,
        linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-pm@...r.kernel.org, Jeffrey Hugo <quic_jhugo@...cinc.com>,
        Marijn Suijten <marijn.suijten@...ainline.org>,
        AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...ainline.org>
Subject: Re: [PATCH v13 04/10] dt-bindings: soc: qcom: cpr3: Add bindings for
 CPR3 driver

On 02/08/2023 14:37, Konrad Dybcio wrote:
> From: AngeloGioacchino Del Regno <angelogioacchino.delregno@...ainline.org>
> 
> Add the bindings for the CPR3 driver to the documentation.
> 
> Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@...ainline.org>
> [Konrad: Make binding check pass; update AGdR's email]
> Tested-by: Jeffrey Hugo <quic_jhugo@...cinc.com>
> Signed-off-by: Konrad Dybcio <konrad.dybcio@...aro.org>
> ---
>  .../devicetree/bindings/soc/qcom/qcom,cpr3.yaml    | 291 +++++++++++++++++++++
>  1 file changed, 291 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/soc/qcom/qcom,cpr3.yaml b/Documentation/devicetree/bindings/soc/qcom/qcom,cpr3.yaml
> new file mode 100644
> index 000000000000..d797abc5d5fe
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/soc/qcom/qcom,cpr3.yaml
> @@ -0,0 +1,291 @@
> +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: "http://devicetree.org/schemas/soc/qcom/qcom,cpr3.yaml#"

Drop quotes.

It does not look like you tested the bindings, at least after quick
look. Please run `make dt_binding_check` (see
Documentation/devicetree/bindings/writing-schema.rst for instructions).
Maybe you need to update your dtschema and yamllint.

> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Qualcomm Core Power Reduction v3/v4/Hardened (CPR3, CPR4, CPRh)
> +
> +description:
> +  CPR (Core Power Reduction) is a technology to reduce core power of a CPU
> +  (or another device). Each OPP of a device corresponds to a "corner" that
> +  has a range of valid voltages for a particular frequency.
> +  The CPR monitors dynamic factors such as temperature, etc. and suggests
> +  or (in the CPR-hardened case) applies voltage adjustments to save power
> +  and meet silicon characteristic requirements for a given chip unit.
> +
> +maintainers:
> +  - AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
> +
> +properties:
> +  compatible:
> +    oneOf:
> +      - description: CPRv3 controller

Nit, since you are going to resend, then: Drop description, it's the
same as compatible.

> +        items:
> +          - const: qcom,cpr3
> +      - description: CPRv4 controller

Ditto


Best regards,
Krzysztof