From: Mark Yao yzq@rock-chips.com
Add binding documentation for Rockchip SoC LVDS driver.
Signed-off-by: Mark Yao yzq@rock-chips.com Signed-off-by: Heiko Stuebner heiko@sntech.de --- .../devicetree/bindings/video/rockchip-lvds.txt | 74 ++++++++++++++++++++++ 1 file changed, 74 insertions(+) create mode 100644 Documentation/devicetree/bindings/video/rockchip-lvds.txt
diff --git a/Documentation/devicetree/bindings/video/rockchip-lvds.txt b/Documentation/devicetree/bindings/video/rockchip-lvds.txt new file mode 100644 index 0000000..80529f4 --- /dev/null +++ b/Documentation/devicetree/bindings/video/rockchip-lvds.txt @@ -0,0 +1,74 @@ +Rockchip RK3288 LVDS interface +================================ + +Required properties: +- compatible: "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,data-mapping: should be "vesa" or "jeida", + This describes how the color bits are laid out in the + serialized LVDS signal. +- rockchip,data-width : should be <18> or <24>; +- rockchip,output: should be "rgb", "lvds" or "duallvds", + This describes the output face. + +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 inputs +- video port 1 for either a panel or subsequent encoder + +Example: + lvds: lvds@ff96c000 { + compatible = "rockchip,rk3288-lvds"; + rockchip,grf = <&grf>; + reg = <0xff96c000 0x4000>; + clocks = <&cru PCLK_LVDS_PHY>; + clock-names = "pclk_lvds"; + avdd1v0-supply = <&vdd10_lcd>; + avdd1v8-supply = <&vcc18_lcd>; + avdd3v3-supply = <&vcca_33>; + rockchip,data-mapping = "jeida"; + rockchip,data-width = <24>; + 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>; + }; + }; + }; + };