linux-kernel - Re: [PATCH v2 2/2] dt-bindings: display: novatek,nt36523: define ports

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Message-ID: <20230505214309.GA3609047-robh@kernel.org>
Date:   Fri, 5 May 2023 16:43:09 -0500
From:   Rob Herring <robh@...nel.org>
To:     Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Cc:     Neil Armstrong <neil.armstrong@...aro.org>,
        Sam Ravnborg <sam@...nborg.org>,
        David Airlie <airlied@...il.com>,
        Daniel Vetter <daniel@...ll.ch>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Jianhua Lu <lujianhua000@...il.com>,
        Del Regno <angelogioacchino.delregno@...ainline.org>,
        dri-devel@...ts.freedesktop.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 2/2] dt-bindings: display: novatek,nt36523: define
 ports

On Tue, May 02, 2023 at 02:00:36PM +0200, Krzysztof Kozlowski wrote:
> The panel-common schema does not define what "ports" property is, so
> bring the definition to enforce the type.  All panels described by
> binding are dual-link, thus require both ports.
> 
> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
> 
> ---
> 
> Changes since v1:
> 1. Rework to add ports to device schema, not to panel-common.
> https://lore.kernel.org/all/20230420160905.GA2952736-robh@kernel.org/
> ---
>  .../bindings/display/panel/novatek,nt36523.yaml           | 8 +++++++-
>  1 file changed, 7 insertions(+), 1 deletion(-)
> 
> diff --git a/Documentation/devicetree/bindings/display/panel/novatek,nt36523.yaml b/Documentation/devicetree/bindings/display/panel/novatek,nt36523.yaml
> index 0039561ef04c..a2a8c4e39573 100644
> --- a/Documentation/devicetree/bindings/display/panel/novatek,nt36523.yaml
> +++ b/Documentation/devicetree/bindings/display/panel/novatek,nt36523.yaml
> @@ -32,8 +32,14 @@ properties:
>    vddio-supply:
>      description: regulator that supplies the I/O voltage
>  
> +  ports:
> +    $ref: /schemas/graph.yaml#/properties/ports
> +
> +    required:
> +      - port@0
> +      - port@1

What is each port?
 
You need:

additionalProperties: false
properties:
  port@0:
    $ref: ...
    description: ...

  port@1:
    $ref: ...
    description: ...