linux-kernel - Re: [PATCH v2 01/15] dt-bindings: clock: permit additionalProprieties to qcom,gcc

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Date:   Thu, 20 Jan 2022 19:53:47 -0600
From:   Rob Herring <robh@...nel.org>
To:     Ansuel Smith <ansuelsmth@...il.com>
Cc:     Andy Gross <agross@...nel.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Michael Turquette <mturquette@...libre.com>,
        Stephen Boyd <sboyd@...nel.org>,
        Philipp Zabel <p.zabel@...gutronix.de>,
        Taniya Das <tdas@...eaurora.org>,
        linux-arm-msm@...r.kernel.org, linux-clk@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 01/15] dt-bindings: clock: permit
 additionalProprieties to qcom,gcc

On Fri, Jan 21, 2022 at 12:20:14AM +0100, Ansuel Smith wrote:
> To permit the use of qcom,gcc as a template for other Documentation, set
> additionalProprieties to true.
> While at it add the missing syscon for qcom,ipq8064 that is mandatory
> for the correct function of the tsens driver.
> 
> Signed-off-by: Ansuel Smith <ansuelsmth@...il.com>
> ---
>  .../devicetree/bindings/clock/qcom,gcc.yaml   | 41 ++++++++++---------
>  1 file changed, 22 insertions(+), 19 deletions(-)
> 
> diff --git a/Documentation/devicetree/bindings/clock/qcom,gcc.yaml b/Documentation/devicetree/bindings/clock/qcom,gcc.yaml
> index f66d703bd913..3fd03687a6f7 100644
> --- a/Documentation/devicetree/bindings/clock/qcom,gcc.yaml
> +++ b/Documentation/devicetree/bindings/clock/qcom,gcc.yaml
> @@ -36,24 +36,27 @@ description: |
>  
>  properties:
>    compatible:
> -    enum:
> -      - qcom,gcc-apq8084
> -      - qcom,gcc-ipq4019
> -      - qcom,gcc-ipq6018
> -      - qcom,gcc-ipq8064
> -      - qcom,gcc-mdm9607
> -      - qcom,gcc-msm8226
> -      - qcom,gcc-msm8660
> -      - qcom,gcc-msm8916
> -      - qcom,gcc-msm8939
> -      - qcom,gcc-msm8953
> -      - qcom,gcc-msm8960
> -      - qcom,gcc-msm8974
> -      - qcom,gcc-msm8974pro
> -      - qcom,gcc-msm8974pro-ac
> -      - qcom,gcc-mdm9615
> -      - qcom,gcc-sdm630
> -      - qcom,gcc-sdm660
> +    oneOf:
> +      - enum:
> +          - qcom,gcc-apq8084
> +          - qcom,gcc-ipq4019
> +          - qcom,gcc-ipq6018
> +          - qcom,gcc-mdm9607
> +          - qcom,gcc-msm8226
> +          - qcom,gcc-msm8660
> +          - qcom,gcc-msm8916
> +          - qcom,gcc-msm8939
> +          - qcom,gcc-msm8953
> +          - qcom,gcc-msm8960
> +          - qcom,gcc-msm8974
> +          - qcom,gcc-msm8974pro
> +          - qcom,gcc-msm8974pro-ac
> +          - qcom,gcc-mdm9615
> +          - qcom,gcc-sdm630
> +          - qcom,gcc-sdm660
> +      - items:
> +          - const: qcom,gcc-ipq8064
> +          - const: syscon
>  
>    '#clock-cells':
>      const: 1
> @@ -78,7 +81,7 @@ required:
>    - '#reset-cells'
>    - '#power-domain-cells'
>  
> -additionalProperties: false
> +additionalProperties: true

This doesn't work. You just allowed any other property to be allowed for 
all these devices. If you need something shared, you have to create a 
common base schema that's referenced by other schemas. Minimally, those 
would look like this:

$ref: /to/base/schema.yaml
unevaluatedProperties: false
properties:
  compatible:
    ...

Rob