xref: /linux/Documentation/devicetree/bindings/display/rockchip/rockchip,lvds.yaml (revision 42874e4eb35bdfc54f8514685e50434098ba4f6c) 
1# SPDX-License-Identifier: GPL-2.0
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/display/rockchip/rockchip,lvds.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: Rockchip low-voltage differential signal (LVDS) transmitter
8
9maintainers:
10  - Sandy Huang <hjc@rock-chips.com>
11  - Heiko Stuebner <heiko@sntech.de>
12
13properties:
14  compatible:
15    enum:
16      - rockchip,px30-lvds
17      - rockchip,rk3288-lvds
18
19  reg:
20    maxItems: 1
21
22  clocks:
23    maxItems: 1
24
25  clock-names:
26    const: pclk_lvds
27
28  avdd1v0-supply:
29    description: 1.0V analog power.
30
31  avdd1v8-supply:
32    description: 1.8V analog power.
33
34  avdd3v3-supply:
35    description: 3.3V analog power.
36
37  rockchip,grf:
38    $ref: /schemas/types.yaml#/definitions/phandle
39    description: Phandle to the general register files syscon.
40
41  rockchip,output:
42    $ref: /schemas/types.yaml#/definitions/string
43    enum: [rgb, lvds, duallvds]
44    description: This describes the output interface.
45
46  phys:
47    maxItems: 1
48
49  phy-names:
50    const: dphy
51
52  pinctrl-names:
53    const: lcdc
54
55  pinctrl-0: true
56
57  power-domains:
58    maxItems: 1
59
60  ports:
61    $ref: /schemas/graph.yaml#/properties/ports
62
63    properties:
64      port@0:
65        $ref: /schemas/graph.yaml#/properties/port
66        description:
67          Video port 0 for the VOP input.
68          The remote endpoint maybe vopb or vopl.
69
70      port@1:
71        $ref: /schemas/graph.yaml#/properties/port
72        description:
73          Video port 1 for either a panel or subsequent encoder.
74
75    required:
76      - port@0
77      - port@1
78
79required:
80  - compatible
81  - rockchip,grf
82  - rockchip,output
83  - ports
84
85allOf:
86  - if:
87      properties:
88        compatible:
89          contains:
90            const: rockchip,px30-lvds
91
92    then:
93      properties:
94        reg: false
95        clocks: false
96        clock-names: false
97        avdd1v0-supply: false
98        avdd1v8-supply: false
99        avdd3v3-supply: false
100
101      required:
102        - phys
103        - phy-names
104
105  - if:
106      properties:
107        compatible:
108          contains:
109            const: rockchip,rk3288-lvds
110
111    then:
112      properties:
113        phys: false
114        phy-names: false
115
116      required:
117        - reg
118        - clocks
119        - clock-names
120        - avdd1v0-supply
121        - avdd1v8-supply
122        - avdd3v3-supply
123
124additionalProperties: false
125
126examples:
127  - |
128    #include <dt-bindings/clock/rk3288-cru.h>
129
130    lvds: lvds@ff96c000 {
131      compatible = "rockchip,rk3288-lvds";
132      reg = <0xff96c000 0x4000>;
133      clocks = <&cru PCLK_LVDS_PHY>;
134      clock-names = "pclk_lvds";
135      avdd1v0-supply = <&vdd10_lcd>;
136      avdd1v8-supply = <&vcc18_lcd>;
137      avdd3v3-supply = <&vcca_33>;
138      pinctrl-names = "lcdc";
139      pinctrl-0 = <&lcdc_ctl>;
140      rockchip,grf = <&grf>;
141      rockchip,output = "rgb";
142
143      ports {
144        #address-cells = <1>;
145        #size-cells = <0>;
146
147        lvds_in: port@0 {
148          reg = <0>;
149          #address-cells = <1>;
150          #size-cells = <0>;
151
152          lvds_in_vopb: endpoint@0 {
153            reg = <0>;
154            remote-endpoint = <&vopb_out_lvds>;
155          };
156          lvds_in_vopl: endpoint@1 {
157            reg = <1>;
158            remote-endpoint = <&vopl_out_lvds>;
159          };
160        };
161
162        lvds_out: port@1 {
163          reg = <1>;
164
165          lvds_out_panel: endpoint {
166            remote-endpoint = <&panel_in_lvds>;
167          };
168        };
169      };
170    };
171