linux-kernel - Re: [PATCH v13 2/5] dt-bindings: msm/dp: add data-lanes and link-frequencies property

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Date:   Wed, 14 Dec 2022 10:19:38 -0600
From:   Rob Herring <robh@...nel.org>
To:     Kuogee Hsieh <quic_khsieh@...cinc.com>
Cc:     dri-devel@...ts.freedesktop.org, robdclark@...il.com,
        sean@...rly.run, swboyd@...omium.org, dianders@...omium.org,
        vkoul@...nel.org, daniel@...ll.ch, agross@...nel.org,
        dmitry.baryshkov@...aro.org, andersson@...nel.org,
        konrad.dybcio@...ainline.org, krzysztof.kozlowski+dt@...aro.org,
        devicetree@...r.kernel.org, airlied@...il.com,
        quic_abhinavk@...cinc.com, quic_sbillaka@...cinc.com,
        freedreno@...ts.freedesktop.org, linux-arm-msm@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v13 2/5] dt-bindings: msm/dp: add data-lanes and
 link-frequencies property

On Tue, Dec 13, 2022 at 02:56:18PM -0800, Kuogee Hsieh wrote:
> Add both data-lanes and link-frequencies property into endpoint
> 
> Changes in v7:
> -- split yaml out of dtsi patch
> -- link-frequencies from link rate to symbol rate
> -- deprecation of old data-lanes property
> 
> Changes in v8:
> -- correct Bjorn mail address to kernel.org
> 
> Changes in v10:
> -- add menu item to data-lanes and link-frequecnis
> 
> Changes in v11:
> -- add endpoint property at port@1
> 
> Changes in v12:
> -- use enum for item at data-lanes and link-frequencies
> 
> Changes in v13:
> -- revised changes at port@0
> -- use correct ref schemas for both port@0 and port@1
> -- mark both port@0 and port@1 are required
> -- add line between data-lanes and link-frequencies properties
> 
> Signed-off-by: Kuogee Hsieh <quic_khsieh@...cinc.com>`
> ---
>  .../bindings/display/msm/dp-controller.yaml        | 26 ++++++++++++++++++++--
>  1 file changed, 24 insertions(+), 2 deletions(-)
> 
> diff --git a/Documentation/devicetree/bindings/display/msm/dp-controller.yaml b/Documentation/devicetree/bindings/display/msm/dp-controller.yaml
> index f2515af..9d002de 100644
> --- a/Documentation/devicetree/bindings/display/msm/dp-controller.yaml
> +++ b/Documentation/devicetree/bindings/display/msm/dp-controller.yaml
> @@ -81,6 +81,7 @@ properties:
>  
>    data-lanes:
>      $ref: /schemas/types.yaml#/definitions/uint32-array
> +    deprecated: true
>      minItems: 1
>      maxItems: 4
>      items:
> @@ -98,12 +99,31 @@ properties:
>      $ref: /schemas/graph.yaml#/properties/ports
>      properties:
>        port@0:
> -        $ref: /schemas/graph.yaml#/properties/port
> +        $ref: "/schemas/graph.yaml#/$defs/port-base"

This means you have extra properties to add in the endpoint, but you 
didn't define any.

>          description: Input endpoint of the controller
>  
>        port@1:
> -        $ref: /schemas/graph.yaml#/properties/port
> +        $ref: "/schemas/graph.yaml#/$defs/port-base"

Don't need quotes. Why did you add them?

>          description: Output endpoint of the controller
> +        properties:
> +          endpoint:
> +            $ref: /schemas/media/video-interfaces.yaml#
> +            properties:
> +              data-lanes:
> +                minItems: 1
> +                maxItems: 4
> +                items:
> +                  enum: [ 0, 1, 2, 3 ]
> +
> +              link-frequencies:
> +                minItems: 1
> +                maxItems: 4
> +                items:
> +                  enum: [ 1620000000, 2700000000, 5400000000, 8100000000 ]
> +
> +    required:
> +      - port@0
> +      - port@1
>  
>  required:
>    - compatible
> @@ -193,6 +213,8 @@ examples:
>                  reg = <1>;
>                  endpoint {
>                      remote-endpoint = <&typec>;
> +                    data-lanes = <0 1>;
> +                    link-frequencies = /bits/ 64 <1620000000 2700000000 5400000000 8100000000>; 
>                  };
>              };
>          };
> -- 
> The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
> a Linux Foundation Collaborative Project
> 
>