linux-kernel - Re: [PATCH 1/2] dt-bindings: opp: qcom-opp: Convert to DT schema

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Date:   Thu, 2 Sep 2021 14:19:39 -0500
From:   Rob Herring <robh@...nel.org>
To:     AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...ainline.org>
Cc:     bjorn.andersson@...aro.org, sboyd@...nel.org, vireshk@...nel.org,
        agross@...nel.org, nm@...com, ilia.lin@...nel.org,
        niklas.cassel@...aro.org, linux-arm-msm@...r.kernel.org,
        linux-pm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, konrad.dybcio@...ainline.org,
        marijn.suijten@...ainline.org, martin.botka@...ainline.org,
        ~postmarketos/upstreaming@...ts.sr.ht
Subject: Re: [PATCH 1/2] dt-bindings: opp: qcom-opp: Convert to DT schema

On Wed, Sep 01, 2021 at 05:55:58PM +0200, AngeloGioacchino Del Regno wrote:
> Rewrite the qcom-opp as qcom-level-opp in dt schema format.
> 
> Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@...ainline.org>
> ---
>  .../bindings/opp/qcom-level-opp.yaml          | 68 +++++++++++++++++++
>  .../devicetree/bindings/opp/qcom-opp.txt      | 19 ------
>  2 files changed, 68 insertions(+), 19 deletions(-)
>  create mode 100644 Documentation/devicetree/bindings/opp/qcom-level-opp.yaml
>  delete mode 100644 Documentation/devicetree/bindings/opp/qcom-opp.txt
> 
> diff --git a/Documentation/devicetree/bindings/opp/qcom-level-opp.yaml b/Documentation/devicetree/bindings/opp/qcom-level-opp.yaml
> new file mode 100644
> index 000000000000..65dd2d5d9566
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/opp/qcom-level-opp.yaml
> @@ -0,0 +1,68 @@
> +# SPDX-License-Identifier: GPL-2.0

This one of course came from default GPL2 source, but I'm sure the 
authors are QCom/Linaro and they would be happy to dual license.

> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/opp/qcom-level-opp.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Qualcomm OPP bindings for fuse and voltage level OPPs
> +
> +maintainers:
> +  - AngeloGioacchino Del Regno <angelogioacchino.delregno@...ainline.org>
> +  - Niklas Cassel <niklas.cassel@...aro.org>
> +
> +allOf:
> +  - $ref: opp-v2-base.yaml#
> +
> +properties:
> +  compatible:
> +    const: operating-points-v2-qcom-level
> +
> +  opp-shared: true
> +
> +required:
> +  - compatible
> +
> +patternProperties:
> +  '^opp-?[0-9]+$':
> +    type: object
> +
> +    properties:
> +      opp-level: true
> +      qcom,opp-fuse-level:
> +        description:
> +          At least one positive value representing the fuse corner or level
> +          associated with this OPP node. In case this is used for CPR >=v3,
> +          multiple array entries are referring to different CPR threads.
> +          Sometimes several corners/levels shares a certain fuse
> +          corner/level. A fuse corner/level contains e.g. ref uV, min uV,
> +          and max uV.
> +        $ref: /schemas/types.yaml#/definitions/uint32-array
> +
> +    required:
> +      - opp-level
> +      - qcom,opp-fuse-level
> +
> +    unevaluatedProperties: false
> +
> +additionalProperties: false
> +
> +examples:
> +  - |
> +    cpr_opp_table: opp-table-cpr {
> +        compatible = "operating-points-v2-qcom-level";
> +
> +        cpr_opp1: opp1 {
> +            opp-level = <1>;
> +            qcom,opp-fuse-level = <1>;
> +        };
> +        cpr_opp2: opp2 {
> +            opp-level = <2>;
> +            qcom,opp-fuse-level = <2>;
> +        };
> +        cpr_opp3: opp3 {
> +            opp-level = <3>;
> +            qcom,opp-fuse-level = <3>;
> +        };
> +    };
> +
> +...
> diff --git a/Documentation/devicetree/bindings/opp/qcom-opp.txt b/Documentation/devicetree/bindings/opp/qcom-opp.txt
> deleted file mode 100644
> index 41d3e4ff2dc3..000000000000
> --- a/Documentation/devicetree/bindings/opp/qcom-opp.txt
> +++ /dev/null
> @@ -1,19 +0,0 @@
> -Qualcomm OPP bindings to describe OPP nodes
> -
> -The bindings are based on top of the operating-points-v2 bindings
> -described in Documentation/devicetree/bindings/opp/opp-v2-base.yaml
> -Additional properties are described below.
> -
> -* OPP Table Node
> -
> -Required properties:
> -- compatible: Allow OPPs to express their compatibility. It should be:
> -  "operating-points-v2-qcom-level"
> -
> -* OPP Node
> -
> -Required properties:
> -- qcom,opp-fuse-level: A positive value representing the fuse corner/level
> -  associated with this OPP node. Sometimes several corners/levels shares
> -  a certain fuse corner/level. A fuse corner/level contains e.g. ref uV,
> -  min uV, and max uV.
> -- 
> 2.32.0
> 
>