1 # SPDX-License-Identifier: GPL-2.0 1 # SPDX-License-Identifier: GPL-2.0
2 %YAML 1.2 2 %YAML 1.2
3 --- 3 ---
4 $id: http://devicetree.org/schemas/display/bri 4 $id: http://devicetree.org/schemas/display/bridge/lvds-codec.yaml#
5 $schema: http://devicetree.org/meta-schemas/co 5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6 6
7 title: Transparent LVDS encoders and decoders 7 title: Transparent LVDS encoders and decoders
8 8
9 maintainers: 9 maintainers:
10 - Laurent Pinchart <laurent.pinchart+renesas@ 10 - Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
11 11
12 description: | 12 description: |
13 This binding supports transparent LVDS encod 13 This binding supports transparent LVDS encoders and decoders that don't
14 require any configuration. 14 require any configuration.
15 15
16 LVDS is a physical layer specification defin 16 LVDS is a physical layer specification defined in ANSI/TIA/EIA-644-A. Multiple
17 incompatible data link layers have been used 17 incompatible data link layers have been used over time to transmit image data
18 to LVDS panels. This binding targets devices 18 to LVDS panels. This binding targets devices compatible with the following
19 specifications only. 19 specifications only.
20 20
21 [JEIDA] "Digital Interface Standards for Mon 21 [JEIDA] "Digital Interface Standards for Monitor", JEIDA-59-1999, February
22 1999 (Version 1.0), Japan Electronic Industr 22 1999 (Version 1.0), Japan Electronic Industry Development Association (JEIDA)
23 [LDI] "Open LVDS Display Interface", May 199 23 [LDI] "Open LVDS Display Interface", May 1999 (Version 0.95), National
24 Semiconductor 24 Semiconductor
25 [VESA] "VESA Notebook Panel Standard", Octob 25 [VESA] "VESA Notebook Panel Standard", October 2007 (Version 1.0), Video
26 Electronics Standards Association (VESA) 26 Electronics Standards Association (VESA)
27 27
28 Those devices have been marketed under the F 28 Those devices have been marketed under the FPD-Link and FlatLink brand names
29 among others. 29 among others.
30 30
31 properties: 31 properties:
32 compatible: 32 compatible:
33 oneOf: 33 oneOf:
34 - items: 34 - items:
35 - enum: 35 - enum:
36 - ti,ds90c185 # For the TI DS9 36 - ti,ds90c185 # For the TI DS90C185 FPD-Link Serializer
37 - ti,ds90c187 # For the TI DS9 37 - ti,ds90c187 # For the TI DS90C187 FPD-Link Serializer
38 - ti,sn75lvds83 # For the TI SN7 38 - ti,sn75lvds83 # For the TI SN75LVDS83 FlatLink transmitter
39 - const: lvds-encoder # Generic LVDS 39 - const: lvds-encoder # Generic LVDS encoder compatible fallback
40 - items: 40 - items:
41 - enum: 41 - enum:
42 - ti,ds90cf364a # For the DS90CF 42 - ti,ds90cf364a # For the DS90CF364A FPD-Link LVDS Receiver
43 - ti,ds90cf384a # For the DS90CF 43 - ti,ds90cf384a # For the DS90CF384A FPD-Link LVDS Receiver
44 - ti,sn65lvds94 # For the SN65DS <<
45 - const: lvds-decoder # Generic LVDS 44 - const: lvds-decoder # Generic LVDS decoders compatible fallback
46 - enum: 45 - enum:
47 - thine,thc63lvdm83d # For the THC63 46 - thine,thc63lvdm83d # For the THC63LVDM83D LVDS serializer
48 47
49 ports: 48 ports:
50 $ref: /schemas/graph.yaml#/properties/port 49 $ref: /schemas/graph.yaml#/properties/ports
51 50
52 properties: 51 properties:
53 port@0: 52 port@0:
54 $ref: /schemas/graph.yaml#/$defs/port- 53 $ref: /schemas/graph.yaml#/$defs/port-base
55 unevaluatedProperties: false <<
56 description: | 54 description: |
57 For LVDS encoders, port 0 is the par 55 For LVDS encoders, port 0 is the parallel input
58 For LVDS decoders, port 0 is the LVD 56 For LVDS decoders, port 0 is the LVDS input
59 57
60 properties: 58 properties:
61 endpoint: 59 endpoint:
62 $ref: /schemas/media/video-interfa 60 $ref: /schemas/media/video-interfaces.yaml#
63 unevaluatedProperties: false 61 unevaluatedProperties: false
64 62
65 properties: 63 properties:
66 data-mapping: 64 data-mapping:
67 enum: 65 enum:
68 - jeida-18 66 - jeida-18
69 - jeida-24 67 - jeida-24
70 - vesa-24 68 - vesa-24
71 description: | 69 description: |
72 The color signals mapping or 70 The color signals mapping order. See details in
73 Documentation/devicetree/bin 71 Documentation/devicetree/bindings/display/lvds.yaml
74 72
75 port@1: 73 port@1:
76 $ref: /schemas/graph.yaml#/properties/ 74 $ref: /schemas/graph.yaml#/properties/port
77 description: | 75 description: |
78 For LVDS encoders, port 1 is the LVD 76 For LVDS encoders, port 1 is the LVDS output
79 For LVDS decoders, port 1 is the par 77 For LVDS decoders, port 1 is the parallel output
80 78
81 required: 79 required:
82 - port@0 80 - port@0
83 - port@1 81 - port@1
84 82
85 pclk-sample: 83 pclk-sample:
86 description: 84 description:
87 Data sampling on rising or falling edge. 85 Data sampling on rising or falling edge.
88 enum: 86 enum:
89 - 0 # Falling edge 87 - 0 # Falling edge
90 - 1 # Rising edge 88 - 1 # Rising edge
91 default: 0 89 default: 0
92 90
93 powerdown-gpios: 91 powerdown-gpios:
94 description: 92 description:
95 The GPIO used to control the power down 93 The GPIO used to control the power down line of this device.
96 maxItems: 1 94 maxItems: 1
97 95
98 power-supply: true 96 power-supply: true
99 97
100 allOf: 98 allOf:
101 - if: 99 - if:
102 not: 100 not:
103 properties: 101 properties:
104 compatible: 102 compatible:
105 contains: 103 contains:
106 const: lvds-decoder 104 const: lvds-decoder
107 then: 105 then:
108 properties: 106 properties:
109 ports: 107 ports:
110 properties: 108 properties:
111 port@0: 109 port@0:
112 properties: 110 properties:
113 endpoint: 111 endpoint:
114 properties: 112 properties:
115 data-mapping: false 113 data-mapping: false
116 114
117 - if: 115 - if:
118 not: 116 not:
119 properties: 117 properties:
120 compatible: 118 compatible:
121 contains: 119 contains:
122 const: lvds-encoder 120 const: lvds-encoder
123 then: 121 then:
124 properties: 122 properties:
125 pclk-sample: false 123 pclk-sample: false
126 124
127 required: 125 required:
128 - compatible 126 - compatible
129 - ports 127 - ports
130 128
131 additionalProperties: false 129 additionalProperties: false
132 130
133 131
134 examples: 132 examples:
135 - | 133 - |
136 lvds-encoder { 134 lvds-encoder {
137 compatible = "ti,ds90c185", "lvds-encode 135 compatible = "ti,ds90c185", "lvds-encoder";
138 136
139 ports { 137 ports {
140 #address-cells = <1>; 138 #address-cells = <1>;
141 #size-cells = <0>; 139 #size-cells = <0>;
142 140
143 port@0 { 141 port@0 {
144 reg = <0>; 142 reg = <0>;
145 143
146 lvds_enc_in: endpoint { 144 lvds_enc_in: endpoint {
147 remote-endpoint = <&display_out_rg 145 remote-endpoint = <&display_out_rgb>;
148 }; 146 };
149 }; 147 };
150 148
151 port@1 { 149 port@1 {
152 reg = <1>; 150 reg = <1>;
153 151
154 lvds_enc_out: endpoint { 152 lvds_enc_out: endpoint {
155 remote-endpoint = <&lvds_panel_in> 153 remote-endpoint = <&lvds_panel_in>;
156 }; 154 };
157 }; 155 };
158 }; 156 };
159 }; 157 };
160 158
161 - | 159 - |
162 lvds-decoder { 160 lvds-decoder {
163 compatible = "ti,ds90cf384a", "lvds-deco 161 compatible = "ti,ds90cf384a", "lvds-decoder";
164 162
165 ports { 163 ports {
166 #address-cells = <1>; 164 #address-cells = <1>;
167 #size-cells = <0>; 165 #size-cells = <0>;
168 166
169 port@0 { 167 port@0 {
170 reg = <0>; 168 reg = <0>;
171 169
172 lvds_dec_in: endpoint { 170 lvds_dec_in: endpoint {
173 remote-endpoint = <&display_out_lv 171 remote-endpoint = <&display_out_lvds>;
174 }; 172 };
175 }; 173 };
176 174
177 port@1 { 175 port@1 {
178 reg = <1>; 176 reg = <1>;
179 177
180 lvds_dec_out: endpoint { 178 lvds_dec_out: endpoint {
181 remote-endpoint = <&rgb_panel_in>; 179 remote-endpoint = <&rgb_panel_in>;
182 }; 180 };
183 }; 181 };
184 }; 182 };
185 }; 183 };
186 184
187 ... 185 ...
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