Re: [PATCH v3 1/2] dt-bindings: media: Add i.MX8 ISI DT bindings

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On 26/01/2023 01:33, Laurent Pinchart wrote:
> The Image Sensing Interface (ISI) combines image processing pipelines
> with DMA engines to process and capture frames originating from a
> variety of sources. The inputs to the ISI go through Pixel Link
> interfaces, and their number and nature is SoC-dependent. They cover
> both capture interfaces (MIPI CSI-2 RX, HDMI RX) and memory inputs.
> 
> Signed-off-by: Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx>
> ---
> Changes since v2:
> 
> - Describe the interrupts property
> - Set global minItems and maxItems for interrupts

Thank you for your patch. There is something to discuss/improve.

> +
> +  ports:
> +    $ref: /schemas/graph.yaml#/properties/ports
> +    description: |
> +      Ports represent the Pixel Link inputs to the ISI. Their number and
> +      assignment are model-dependent. Each port shall have a single endpoint.
> +
> +    patternProperties:
> +      "^port@[0-9]$":
> +        $ref: /schemas/graph.yaml#/properties/port
> +        unevaluatedProperties: false

You should not need this. The ports from graph.yaml already have it and
you do not bring here any additional information (like description or
how many ports are valid). I propose to just drop it or extend with some
of information.

> +
> +    unevaluatedProperties: false
> +
> +required:
> +  - compatible
> +  - reg
> +  - interrupts
> +  - clocks
> +  - clock-names
> +  - fsl,blk-ctrl
> +  - ports
> +
> +allOf:
> +  - if:
> +      properties:
> +        compatible:
> +          contains:
> +            const: fsl,imx8mn-isi
> +    then:
> +      properties:
> +        interrupts:
> +          maxItems: 1
> +        ports:
> +          properties:
> +            port@0:
> +              description: MIPI CSI-2 RX
> +          required:
> +            - port@0


Best regards,
Krzysztof




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