Re: [PATCH v6 1/4] dt-bindings: soc: imx8m: add DT Binding doc for soc unique ID

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On Tue, Nov 24, 2020 at 09:59:46AM +0800, Alice Guo wrote:
> Add DT Binding doc for the Unique ID of i.MX 8M series.
> 
> Signed-off-by: Alice Guo <alice.guo@xxxxxxx>
> ---
> 
> v2: remove the subject prefix "LF-2571-1"
> v3: put it into Documentation/devicetree/bindings/arm/fsl.yaml

No, I prefer this be a separate schema file and not clutter board/soc 
schemas with child nodes.

>     modify the description of nvmem-cells
>     use "make ARCH=arm64 dtbs_check" to test it and fix errors
> v4: use allOf to limit new version DTS files for i.MX8M to include
>     "fsl,imx8mm/n/p/q-soc", nvmem-cells and nvmem-cells-names
> v5: correct the error of using allOf
> v6: none
> 
>  .../devicetree/bindings/arm/fsl.yaml          | 47 +++++++++++++++++++
>  1 file changed, 47 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/arm/fsl.yaml b/Documentation/devicetree/bindings/arm/fsl.yaml
> index 67980dcef66d..7132ffd41abb 100644
> --- a/Documentation/devicetree/bindings/arm/fsl.yaml
> +++ b/Documentation/devicetree/bindings/arm/fsl.yaml
> @@ -918,6 +918,53 @@ properties:
>                - fsl,s32v234-evb           # S32V234-EVB2 Customer Evaluation Board
>            - const: fsl,s32v234
> 
> +  soc:
> +    type: object
> +    properties:
> +      compatible:
> +        oneOf:
> +          - description: new version compatible for i.MX8M SoCs
> +            items:
> +              - enum:
> +                  - fsl,imx8mm-soc
> +                  - fsl,imx8mn-soc
> +                  - fsl,imx8mp-soc
> +                  - fsl,imx8mq-soc
> +              - const: simple-bus
> +
> +          - description: old version compatible for i.MX8M SoCs
> +            items:
> +              - const: simple-bus

Fix your dts files and drop this.

> +
> +allOf:
> +  - if:
> +      properties:
> +        compatible:
> +          contains:
> +            enum:
> +              - fsl,imx8mm
> +              - fsl,imx8mn
> +              - fsl,imx8mp
> +              - fsl,imx8mq
> +
> +    then:
> +      patternProperties:
> +        "^soc@[0-9a-f]+$":

And this is just wrong. First you say the node is 'soc' and then here it 
has a unit address.

> +          properties:
> +            compatible:
> +              items:
> +                - enum:
> +                    - fsl,imx8mm-soc
> +                    - fsl,imx8mn-soc
> +                    - fsl,imx8mp-soc
> +                    - fsl,imx8mq-soc
> +                - const: simple-bus
> +
> +          required:
> +            - compatible
> +            - nvmem-cells
> +            - nvmem-cell-names
> +
>  additionalProperties: true
> 
>  ...
> --
> 2.17.1
> 



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