tjh.dev
Linux kernel mirror (for testing)
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1Rockchip RK3288 LVDS interface
2================================
3
4Required properties:
5- compatible: matching the soc type, one of
6 - "rockchip,rk3288-lvds";
7 - "rockchip,px30-lvds";
8
9- reg: physical base address of the controller and length
10 of memory mapped region.
11- clocks: must include clock specifiers corresponding to entries in the
12 clock-names property.
13- clock-names: must contain "pclk_lvds"
14
15- avdd1v0-supply: regulator phandle for 1.0V analog power
16- avdd1v8-supply: regulator phandle for 1.8V analog power
17- avdd3v3-supply: regulator phandle for 3.3V analog power
18
19- rockchip,grf: phandle to the general register files syscon
20- rockchip,output: "rgb", "lvds" or "duallvds", This describes the output interface
21
22- phys: LVDS/DSI DPHY (px30 only)
23- phy-names: name of the PHY, must be "dphy" (px30 only)
24
25Optional properties:
26- pinctrl-names: must contain a "lcdc" entry.
27- pinctrl-0: pin control group to be used for this controller.
28
29Required nodes:
30
31The lvds has two video ports as described by
32 Documentation/devicetree/bindings/media/video-interfaces.txt
33Their connections are modeled using the OF graph bindings specified in
34 Documentation/devicetree/bindings/graph.txt.
35
36- video port 0 for the VOP input, the remote endpoint maybe vopb or vopl
37- video port 1 for either a panel or subsequent encoder
38
39Example:
40
41lvds_panel: lvds-panel {
42 compatible = "auo,b101ean01";
43 enable-gpios = <&gpio7 21 GPIO_ACTIVE_HIGH>;
44 data-mapping = "jeida-24";
45
46 ports {
47 panel_in_lvds: endpoint {
48 remote-endpoint = <&lvds_out_panel>;
49 };
50 };
51};
52
53For Rockchip RK3288:
54
55 lvds: lvds@ff96c000 {
56 compatible = "rockchip,rk3288-lvds";
57 rockchip,grf = <&grf>;
58 reg = <0xff96c000 0x4000>;
59 clocks = <&cru PCLK_LVDS_PHY>;
60 clock-names = "pclk_lvds";
61 pinctrl-names = "lcdc";
62 pinctrl-0 = <&lcdc_ctl>;
63 avdd1v0-supply = <&vdd10_lcd>;
64 avdd1v8-supply = <&vcc18_lcd>;
65 avdd3v3-supply = <&vcca_33>;
66 rockchip,output = "rgb";
67 ports {
68 #address-cells = <1>;
69 #size-cells = <0>;
70
71 lvds_in: port@0 {
72 reg = <0>;
73
74 lvds_in_vopb: endpoint@0 {
75 reg = <0>;
76 remote-endpoint = <&vopb_out_lvds>;
77 };
78 lvds_in_vopl: endpoint@1 {
79 reg = <1>;
80 remote-endpoint = <&vopl_out_lvds>;
81 };
82 };
83
84 lvds_out: port@1 {
85 reg = <1>;
86
87 lvds_out_panel: endpoint {
88 remote-endpoint = <&panel_in_lvds>;
89 };
90 };
91 };
92 };