FreeBSD/Linux Kernel Cross Reference
sys/contrib/device-tree/Bindings/display/bridge/lvds-codec.yaml

     # SPDX-License-Identifier: GPL-2.0
     %YAML 1.2
     ---
     $id: http://devicetree.org/schemas/display/bridge/lvds-codec.yaml#
     $schema: http://devicetree.org/meta-schemas/core.yaml#
     
     title: Transparent LVDS encoders and decoders
     
     maintainers:
      - Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
    
    description: |
      This binding supports transparent LVDS encoders and decoders that don't
      require any configuration.
    
      LVDS is a physical layer specification defined in ANSI/TIA/EIA-644-A. Multiple
      incompatible data link layers have been used over time to transmit image data
      to LVDS panels. This binding targets devices compatible with the following
      specifications only.
    
      [JEIDA] "Digital Interface Standards for Monitor", JEIDA-59-1999, February
      1999 (Version 1.0), Japan Electronic Industry Development Association (JEIDA)
      [LDI] "Open LVDS Display Interface", May 1999 (Version 0.95), National
      Semiconductor
      [VESA] "VESA Notebook Panel Standard", October 2007 (Version 1.0), Video
      Electronics Standards Association (VESA)
    
      Those devices have been marketed under the FPD-Link and FlatLink brand names
      among others.
    
    properties:
      compatible:
        oneOf:
          - items:
              - enum:
                  - ti,ds90c185   # For the TI DS90C185 FPD-Link Serializer
                  - ti,ds90c187   # For the TI DS90C187 FPD-Link Serializer
                  - ti,sn75lvds83 # For the TI SN75LVDS83 FlatLink transmitter
              - const: lvds-encoder # Generic LVDS encoder compatible fallback
          - items:
              - enum:
                  - ti,ds90cf364a # For the DS90CF364A FPD-Link LVDS Receiver
                  - ti,ds90cf384a # For the DS90CF384A FPD-Link LVDS Receiver
              - const: lvds-decoder # Generic LVDS decoders compatible fallback
          - enum:
              - thine,thc63lvdm83d # For the THC63LVDM83D LVDS serializer
    
      ports:
        $ref: /schemas/graph.yaml#/properties/ports
    
        properties:
          port@0:
            $ref: /schemas/graph.yaml#/$defs/port-base
            description: |
              For LVDS encoders, port 0 is the parallel input
              For LVDS decoders, port 0 is the LVDS input
    
            properties:
              endpoint:
                $ref: /schemas/media/video-interfaces.yaml#
                unevaluatedProperties: false
    
                properties:
                  data-mapping:
                    enum:
                      - jeida-18
                      - jeida-24
                      - vesa-24
                    description: |
                      The color signals mapping order. See details in
                      Documentation/devicetree/bindings/display/lvds.yaml
    
          port@1:
            $ref: /schemas/graph.yaml#/properties/port
            description: |
              For LVDS encoders, port 1 is the LVDS output
              For LVDS decoders, port 1 is the parallel output
    
        required:
          - port@0
          - port@1
    
      pclk-sample:
        description:
          Data sampling on rising or falling edge.
        enum:
          - 0  # Falling edge
          - 1  # Rising edge
        default: 0
    
      powerdown-gpios:
        description:
          The GPIO used to control the power down line of this device.
        maxItems: 1
    
      power-supply: true
    
    allOf:
      - if:
         not:
           properties:
             compatible:
               contains:
                 const: lvds-decoder
       then:
         properties:
           ports:
             properties:
               port@0:
                 properties:
                   endpoint:
                     properties:
                       data-mapping: false
   
     - if:
         not:
           properties:
             compatible:
               contains:
                 const: lvds-encoder
       then:
         properties:
           pclk-sample: false
   
   required:
     - compatible
     - ports
   
   additionalProperties: false
   
   
   examples:
     - |
       lvds-encoder {
         compatible = "ti,ds90c185", "lvds-encoder";
   
         ports {
           #address-cells = <1>;
           #size-cells = <0>;
   
           port@0 {
             reg = <0>;
   
             lvds_enc_in: endpoint {
               remote-endpoint = <&display_out_rgb>;
             };
           };
   
           port@1 {
             reg = <1>;
   
             lvds_enc_out: endpoint {
               remote-endpoint = <&lvds_panel_in>;
             };
           };
         };
       };
   
     - |
       lvds-decoder {
         compatible = "ti,ds90cf384a", "lvds-decoder";
   
         ports {
           #address-cells = <1>;
           #size-cells = <0>;
   
           port@0 {
             reg = <0>;
   
             lvds_dec_in: endpoint {
               remote-endpoint = <&display_out_lvds>;
             };
           };
   
           port@1 {
             reg = <1>;
   
             lvds_dec_out: endpoint {
               remote-endpoint = <&rgb_panel_in>;
             };
           };
         };
       };
   
   ...

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