Re: [PATCH v4 1/4] dt-bindings: soc: imx8m: add DT Binding doc for soc unique ID

[Krzysztof Kozlowski]

On Fri, Nov 20, 2020 at 06:11:09PM +0800, Alice Guo wrote:
> Add DT Binding doc for the Unique ID of i.MX 8M series.
> 
> v2: remove the subject prefix "LF-2571-1"
> v3: put it into Documentation/devicetree/bindings/arm/fsl.yaml
>     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
> 
> Signed-off-by: Alice Guo <alice.guo@xxxxxxx>
> ---
>  .../devicetree/bindings/arm/fsl.yaml          | 51 +++++++++++++++++++
>  1 file changed, 51 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/arm/fsl.yaml b/Documentation/devicetree/bindings/arm/fsl.yaml
> index 67980dcef66d..d8048323a290 100644
> --- a/Documentation/devicetree/bindings/arm/fsl.yaml
> +++ b/Documentation/devicetree/bindings/arm/fsl.yaml
> @@ -918,6 +918,57 @@ 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
> +
> +      nvmem-cells:
> +        maxItems: 1
> +        description: Phandle to the SOC Unique ID provided by a nvmem node
> +
> +      nvmem-cells-names:
> +        const: soc_unique_id
> +
> +    allOf:

Nothing changed here comparing to previous version. Still does not
work.

The allOf should not be part of soc node because the "if" below won't
match. Instead, it should be against root node.

Best regards,
Krzysztof

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