xref: /kernel/linux/linux-6.6/Documentation/devicetree/bindings/display/rockchip/rockchip,lvds.yaml

# SPDX-License-Identifier: GPL-2.0
%YAML 1.2
---
$id: http://devicetree.org/schemas/display/rockchip/rockchip,lvds.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Rockchip low-voltage differential signal (LVDS) transmitter

maintainers:
  - Sandy Huang <hjc@rock-chips.com>
  - Heiko Stuebner <heiko@sntech.de>

properties:
  compatible:
    enum:
      - rockchip,px30-lvds
      - rockchip,rk3288-lvds

  reg:
    maxItems: 1

  clocks:
    maxItems: 1

  clock-names:
    const: pclk_lvds

  avdd1v0-supply:
    description: 1.0V analog power.

  avdd1v8-supply:
    description: 1.8V analog power.

  avdd3v3-supply:
    description: 3.3V analog power.

  rockchip,grf:
    $ref: /schemas/types.yaml#/definitions/phandle
    description: Phandle to the general register files syscon.

  rockchip,output:
    $ref: /schemas/types.yaml#/definitions/string
    enum: [rgb, lvds, duallvds]
    description: This describes the output interface.

  phys:
    maxItems: 1

  phy-names:
    const: dphy

  pinctrl-names:
    const: lcdc

  pinctrl-0: true

  power-domains:
    maxItems: 1

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

    properties:
      port@0:
        $ref: /schemas/graph.yaml#/properties/port
        description:
          Video port 0 for the VOP input.
          The remote endpoint maybe vopb or vopl.

      port@1:
        $ref: /schemas/graph.yaml#/properties/port
        description:
          Video port 1 for either a panel or subsequent encoder.

    required:
      - port@0
      - port@1

required:
  - compatible
  - rockchip,grf
  - rockchip,output
  - ports

allOf:
  - if:
      properties:
        compatible:
          contains:
            const: rockchip,px30-lvds

    then:
      properties:
        reg: false
        clocks: false
        clock-names: false
        avdd1v0-supply: false
        avdd1v8-supply: false
        avdd3v3-supply: false

      required:
        - phys
        - phy-names

  - if:
      properties:
        compatible:
          contains:
            const: rockchip,rk3288-lvds

    then:
      properties:
        phys: false
        phy-names: false

      required:
        - reg
        - clocks
        - clock-names
        - avdd1v0-supply
        - avdd1v8-supply
        - avdd3v3-supply

additionalProperties: false

examples:
  - |
    #include <dt-bindings/clock/rk3288-cru.h>

    lvds: lvds@ff96c000 {
      compatible = "rockchip,rk3288-lvds";
      reg = <0xff96c000 0x4000>;
      clocks = <&cru PCLK_LVDS_PHY>;
      clock-names = "pclk_lvds";
      avdd1v0-supply = <&vdd10_lcd>;
      avdd1v8-supply = <&vcc18_lcd>;
      avdd3v3-supply = <&vcca_33>;
      pinctrl-names = "lcdc";
      pinctrl-0 = <&lcdc_ctl>;
      rockchip,grf = <&grf>;
      rockchip,output = "rgb";

      ports {
        #address-cells = <1>;
        #size-cells = <0>;

        lvds_in: port@0 {
          reg = <0>;
          #address-cells = <1>;
          #size-cells = <0>;

          lvds_in_vopb: endpoint@0 {
            reg = <0>;
            remote-endpoint = <&vopb_out_lvds>;
          };
          lvds_in_vopl: endpoint@1 {
            reg = <1>;
            remote-endpoint = <&vopl_out_lvds>;
          };
        };

        lvds_out: port@1 {
          reg = <1>;

          lvds_out_panel: endpoint {
            remote-endpoint = <&panel_in_lvds>;
          };
        };
      };
    };