Unverified Commit bc809594 authored by allen chen's avatar allen chen Committed by Robert Foss
Browse files

dt-bindings: it6505: add properties to restrict output bandwidth 



Currently there are no "upstream" users. So, no existing users to break.
Add properties to restrict dp output data-lanes and clock.

Signed-off-by: default avatarPin-Yen Lin <treapking@chromium.org>
Signed-off-by: default avatarallen Chen <allen.chen@ite.com.tw>
Reviewed-by: default avatarKrzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: default avatarRobert Foss <robert.foss@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20221103091243.96036-2-allen.chen@ite.com.tw
parent 11feaef6

Documentation/devicetree/bindings/display/bridge/ite,it6505.yaml

+62 −6
Original line number Diff line number Diff line
@@ -52,10 +52,50 @@ properties: 
    maxItems: 1

    description: extcon specifier for the Power Delivery



  port:

    $ref: /schemas/graph.yaml#/properties/port

  ports:

    $ref: /schemas/graph.yaml#/properties/ports



    properties:

      port@0:

        $ref: /schemas/graph.yaml#/$defs/port-base

        unevaluatedProperties: false

        description: A port node pointing to DPI host port node



        properties:

          endpoint:

            $ref: /schemas/graph.yaml#/$defs/endpoint-base

            unevaluatedProperties: false



            properties:

              link-frequencies:

                minItems: 1

                maxItems: 1

                description: Allowed max link frequencies in Hz



      port@1:

        $ref: /schemas/graph.yaml#/$defs/port-base

        unevaluatedProperties: false

        description: Video port for DP output



        properties:

          endpoint:

            $ref: /schemas/graph.yaml#/$defs/endpoint-base

            unevaluatedProperties: false



            properties:

              data-lanes:

                minItems: 1

                uniqueItems: true

                items:

                  - enum: [ 0, 1 ]

                  - const: 1

                  - const: 2

                  - const: 3



    required:

      - port@0

      - port@1



required:

  - compatible

  - ovdd-supply
@@ -63,6 +103,7 @@ required: 
  - interrupts

  - reset-gpios

  - extcon

  - ports



additionalProperties: false
@@ -85,9 +126,24 @@ examples: 
            reset-gpios = <&pio 179 1>;

            extcon = <&usbc_extcon>;



            port {

            ports {

                #address-cells = <1>;

                #size-cells = <0>;



                port@0 {

                    reg = <0>;

                    it6505_in: endpoint {

                        remote-endpoint = <&dpi_out>;

                        link-frequencies = /bits/ 64 <150000000>;

                    };

                };



                port@1 {

                    reg = <1>;

                    it6505_out: endpoint {

                        remote-endpoint = <&dp_in>;

                        data-lanes = <0 1>;

                    };

                };

            };

        };