Re: [PATCH v3 3/4] dt-bindings: display/msm: Add SM7150 MDSS

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On Fri, Jun 14, 2024 at 3:59 PM Danila Tikhonov <danila@xxxxxxxxxxx> wrote:
>
> Document the MDSS hardware found on the Qualcomm SM7150 platform.
>
> Signed-off-by: Danila Tikhonov <danila@xxxxxxxxxxx>
> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxx>
> ---
>  .../display/msm/qcom,sm7150-mdss.yaml         | 458 ++++++++++++++++++
>  1 file changed, 458 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/display/msm/qcom,sm7150-mdss.yaml
>
> diff --git a/Documentation/devicetree/bindings/display/msm/qcom,sm7150-mdss.yaml b/Documentation/devicetree/bindings/display/msm/qcom,sm7150-mdss.yaml
> new file mode 100644
> index 0000000000000..13c5d5ffabde9
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/display/msm/qcom,sm7150-mdss.yaml
> @@ -0,0 +1,458 @@
> +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/display/msm/qcom,sm7150-mdss.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Qualcomm SM7150 Display MDSS
> +
> +maintainers:
> +  - Danila Tikhonov <danila@xxxxxxxxxxx>
> +
> +description:
> +  SM7150 MSM Mobile Display Subsystem(MDSS), which encapsulates sub-blocks like
> +  DPU display controller, DSI and DP interfaces etc.
> +
> +$ref: /schemas/display/msm/mdss-common.yaml#
> +
> +properties:
> +  compatible:
> +    const: qcom,sm7150-mdss
> +
> +  clocks:
> +    items:
> +      - description: Display ahb clock from gcc
> +      - description: Display hf axi clock
> +      - description: Display sf axi clock
> +      - description: Display core clock
> +
> +  clock-names:
> +    items:
> +      - const: iface
> +      - const: bus
> +      - const: nrt_bus
> +      - const: core
> +
> +  iommus:
> +    maxItems: 1
> +
> +  interconnects:
> +    items:
> +      - description: Interconnect path from mdp0 port to the data bus
> +      - description: Interconnect path from mdp1 port to the data bus
> +      - description: Interconnect path from CPU to the reg bus
> +
> +  interconnect-names:
> +    items:
> +      - const: mdp0-mem
> +      - const: mdp1-mem
> +      - const: cpu-cfg
> +
> +patternProperties:
> +  "^display-controller@[0-9a-f]+$":
> +    type: object
> +    additionalProperties: true
> +    properties:
> +      compatible:
> +        const: qcom,sm7150-dpu
> +
> +  "^displayport-controller@[0-9a-f]+$":
> +    type: object
> +    additionalProperties: true
> +    properties:
> +      compatible:
> +        const: qcom,sm7150-dp
> +
> +  "^dsi@[0-9a-f]+$":
> +    type: object
> +    additionalProperties: true
> +    properties:
> +      compatible:
> +        items:
> +          - const: qcom,sm7150-dsi-ctrl
> +          - const: qcom,mdss-dsi-ctrl

You've added this compatible, but haven't updated the corresponding
schema. With a recent change to dtschema fixing a regression, we get
warnings about it:

/builds/robherring/linux-dt/Documentation/devicetree/bindings/display/msm/qcom,sm7150-mdss.example.dtb:
dsi@ae94000: compatible: 'oneOf' conditional failed, one must be
fixed:
        ['qcom,sm7150-dsi-ctrl', 'qcom,mdss-dsi-ctrl'] is too long
        'qcom,sm7150-dsi-ctrl' is not one of ['qcom,apq8064-dsi-ctrl',
'qcom,msm8226-dsi-ctrl', 'qcom,msm8916-dsi-ctrl',
'qcom,msm8953-dsi-ctrl', 'qcom,msm8974-dsi-ctrl',
'qcom,msm8976-dsi-ctrl', 'qcom,msm8996-dsi-ctrl',
'qcom,msm8998-dsi-ctrl', 'qcom,qcm2290-dsi-ctrl',
'qcom,sc7180-dsi-ctrl', 'qcom,sc7280-dsi-ctrl',
'qcom,sdm660-dsi-ctrl', 'qcom,sdm670-dsi-ctrl',
'qcom,sdm845-dsi-ctrl', 'qcom,sm6115-dsi-ctrl',
'qcom,sm6125-dsi-ctrl', 'qcom,sm6350-dsi-ctrl',
'qcom,sm6375-dsi-ctrl', 'qcom,sm8150-dsi-ctrl',
'qcom,sm8250-dsi-ctrl', 'qcom,sm8350-dsi-ctrl',
'qcom,sm8450-dsi-ctrl', 'qcom,sm8550-dsi-ctrl',
'qcom,sm8650-dsi-ctrl']
        'qcom,sm7150-dsi-ctrl' is not one of
['qcom,dsi-ctrl-6g-qcm2290', 'qcom,mdss-dsi-ctrl']
        from schema $id:
http://devicetree.org/schemas/display/msm/dsi-controller-main.yaml#
/builds/robherring/linux-dt/Documentation/devicetree/bindings/display/msm/qcom,sm7150-mdss.example.dtb:
dsi@ae94000: Unevaluated properties are not allowed ('compatible' was
unexpected)
        from schema $id:
http://devicetree.org/schemas/display/msm/dsi-controller-main.yaml#


Either you need to drop this node from here (and the example) or
update the DSI schema.

Rob




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