Kernel-4.18.0-80.el8_rockchip-lvds

Rockchip RK3288 LVDS interface

Required properties:

• compatible: matching the soc type, one of

  • “rockchip,rk3288-lvds”;

• reg: physical base address of the controller and length
  of memory mapped region.

• clocks: must include clock specifiers corresponding to entries in the
  clock-names property.

• clock-names: must contain “pclk_lvds”

• avdd1v0-supply: regulator phandle for 1.0V analog power

• avdd1v8-supply: regulator phandle for 1.8V analog power

• avdd3v3-supply: regulator phandle for 3.3V analog power

• rockchip,grf: phandle to the general register files syscon

• rockchip,output: “rgb”, “lvds” or “duallvds”, This describes the output interface

Optional properties:

• pinctrl-names: must contain a “lcdc” entry.
• pinctrl-0: pin control group to be used for this controller.

Required nodes:

The lvds has two video ports as described by
Documentation/devicetree/bindings/media/video-interfaces.txt
Their connections are modeled using the OF graph bindings specified in
Documentation/devicetree/bindings/graph.txt.

• video port 0 for the VOP input, the remote endpoint maybe vopb or vopl
• video port 1 for either a panel or subsequent encoder

the lvds panel described by
Documentation/devicetree/bindings/display/panel/simple-panel.txt

Panel required properties:

• ports for remote LVDS output

Panel optional properties:

• data-mapping: should be “vesa-24”,”jeida-24” or “jeida-18”.
  This describes decribed by:
  Documentation/devicetree/bindings/display/panel/panel-lvds.txt

Example:

lvds_panel: lvds-panel {
compatible = “auo,b101ean01”;
enable-gpios = <&gpio7 21 GPIO_ACTIVE_HIGH>;
data-mapping = “jeida-24”;

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

};

For Rockchip RK3288:

lvds: lvds@ff96c000 {
    compatible = "rockchip,rk3288-lvds";
    rockchip,grf = <&grf>;
    reg = <0xff96c000 0x4000>;
    clocks = <&cru PCLK_LVDS_PHY>;
    clock-names = "pclk_lvds";
    pinctrl-names = "lcdc";
    pinctrl-0 = <&lcdc_ctl>;
    avdd1v0-supply = <&vdd10_lcd>;
    avdd1v8-supply = <&vcc18_lcd>;
    avdd3v3-supply = <&vcca_33>;
    rockchip,output = "rgb";
    ports {
        #address-cells = <1>;
        #size-cells = <0>;

        lvds_in: port@0 {
            reg = <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>;
            };
        };
    };
};