1 # SPDX-License-Identifier: GPL-2.0
2 %YAML 1.2
3 ---
4 $id: http://devicetree.org/schemas/display/bri
5 $schema: http://devicetree.org/meta-schemas/co
6
7 title: Transparent LVDS encoders and decoders
8
9 maintainers:
10 - Laurent Pinchart <laurent.pinchart+renesas@
11
12 description: |
13 This binding supports transparent LVDS encod
14 require any configuration.
15
16 LVDS is a physical layer specification defin
17 incompatible data link layers have been used
18 to LVDS panels. This binding targets devices
19 specifications only.
20
21 [JEIDA] "Digital Interface Standards for Mon
22 1999 (Version 1.0), Japan Electronic Industr
23 [LDI] "Open LVDS Display Interface", May 199
24 Semiconductor
25 [VESA] "VESA Notebook Panel Standard", Octob
26 Electronics Standards Association (VESA)
27
28 Those devices have been marketed under the F
29 among others.
30
31 properties:
32 compatible:
33 oneOf:
34 - items:
35 - enum:
36 - ti,ds90c185 # For the TI DS9
37 - ti,ds90c187 # For the TI DS9
38 - ti,sn75lvds83 # For the TI SN7
39 - const: lvds-encoder # Generic LVDS
40 - items:
41 - enum:
42 - ti,ds90cf364a # For the DS90CF
43 - ti,ds90cf384a # For the DS90CF
44 - ti,sn65lvds94 # For the SN65DS
45 - const: lvds-decoder # Generic LVDS
46 - enum:
47 - thine,thc63lvdm83d # For the THC63
48
49 ports:
50 $ref: /schemas/graph.yaml#/properties/port
51
52 properties:
53 port@0:
54 $ref: /schemas/graph.yaml#/$defs/port-
55 unevaluatedProperties: false
56 description: |
57 For LVDS encoders, port 0 is the par
58 For LVDS decoders, port 0 is the LVD
59
60 properties:
61 endpoint:
62 $ref: /schemas/media/video-interfa
63 unevaluatedProperties: false
64
65 properties:
66 data-mapping:
67 enum:
68 - jeida-18
69 - jeida-24
70 - vesa-24
71 description: |
72 The color signals mapping or
73 Documentation/devicetree/bin
74
75 port@1:
76 $ref: /schemas/graph.yaml#/properties/
77 description: |
78 For LVDS encoders, port 1 is the LVD
79 For LVDS decoders, port 1 is the par
80
81 required:
82 - port@0
83 - port@1
84
85 pclk-sample:
86 description:
87 Data sampling on rising or falling edge.
88 enum:
89 - 0 # Falling edge
90 - 1 # Rising edge
91 default: 0
92
93 powerdown-gpios:
94 description:
95 The GPIO used to control the power down
96 maxItems: 1
97
98 power-supply: true
99
100 allOf:
101 - if:
102 not:
103 properties:
104 compatible:
105 contains:
106 const: lvds-decoder
107 then:
108 properties:
109 ports:
110 properties:
111 port@0:
112 properties:
113 endpoint:
114 properties:
115 data-mapping: false
116
117 - if:
118 not:
119 properties:
120 compatible:
121 contains:
122 const: lvds-encoder
123 then:
124 properties:
125 pclk-sample: false
126
127 required:
128 - compatible
129 - ports
130
131 additionalProperties: false
132
133
134 examples:
135 - |
136 lvds-encoder {
137 compatible = "ti,ds90c185", "lvds-encode
138
139 ports {
140 #address-cells = <1>;
141 #size-cells = <0>;
142
143 port@0 {
144 reg = <0>;
145
146 lvds_enc_in: endpoint {
147 remote-endpoint = <&display_out_rg
148 };
149 };
150
151 port@1 {
152 reg = <1>;
153
154 lvds_enc_out: endpoint {
155 remote-endpoint = <&lvds_panel_in>
156 };
157 };
158 };
159 };
160
161 - |
162 lvds-decoder {
163 compatible = "ti,ds90cf384a", "lvds-deco
164
165 ports {
166 #address-cells = <1>;
167 #size-cells = <0>;
168
169 port@0 {
170 reg = <0>;
171
172 lvds_dec_in: endpoint {
173 remote-endpoint = <&display_out_lv
174 };
175 };
176
177 port@1 {
178 reg = <1>;
179
180 lvds_dec_out: endpoint {
181 remote-endpoint = <&rgb_panel_in>;
182 };
183 };
184 };
185 };
186
187 ...
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