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 <<
43 - ti,ds90cf384a # For the DS90CF 42 - ti,ds90cf384a # For the DS90CF384A FPD-Link LVDS Receiver
44 - ti,sn65lvds94 # For the SN65DS <<
45 - const: lvds-decoder # Generic LVDS 43 - const: lvds-decoder # Generic LVDS decoders compatible fallback
46 - enum: 44 - enum:
47 - thine,thc63lvdm83d # For the THC63 45 - thine,thc63lvdm83d # For the THC63LVDM83D LVDS serializer
48 46
49 ports: 47 ports:
50 $ref: /schemas/graph.yaml#/properties/port 48 $ref: /schemas/graph.yaml#/properties/ports
51 49
52 properties: 50 properties:
53 port@0: 51 port@0:
54 $ref: /schemas/graph.yaml#/$defs/port- 52 $ref: /schemas/graph.yaml#/$defs/port-base
55 unevaluatedProperties: false <<
56 description: | 53 description: |
57 For LVDS encoders, port 0 is the par 54 For LVDS encoders, port 0 is the parallel input
58 For LVDS decoders, port 0 is the LVD 55 For LVDS decoders, port 0 is the LVDS input
59 56
60 properties: 57 properties:
61 endpoint: 58 endpoint:
62 $ref: /schemas/media/video-interfa 59 $ref: /schemas/media/video-interfaces.yaml#
63 unevaluatedProperties: false 60 unevaluatedProperties: false
64 61
65 properties: 62 properties:
66 data-mapping: 63 data-mapping:
67 enum: 64 enum:
68 - jeida-18 65 - jeida-18
69 - jeida-24 66 - jeida-24
70 - vesa-24 67 - vesa-24
71 description: | 68 description: |
72 The color signals mapping or 69 The color signals mapping order. See details in
73 Documentation/devicetree/bin !! 70 Documentation/devicetree/bindings/display/panel/lvds.yaml
74 71
75 port@1: 72 port@1:
76 $ref: /schemas/graph.yaml#/properties/ 73 $ref: /schemas/graph.yaml#/properties/port
77 description: | 74 description: |
78 For LVDS encoders, port 1 is the LVD 75 For LVDS encoders, port 1 is the LVDS output
79 For LVDS decoders, port 1 is the par 76 For LVDS decoders, port 1 is the parallel output
80 77
81 required: 78 required:
82 - port@0 79 - port@0
83 - port@1 80 - port@1
84 81
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: 82 powerdown-gpios:
94 description: 83 description:
95 The GPIO used to control the power down 84 The GPIO used to control the power down line of this device.
96 maxItems: 1 85 maxItems: 1
97 86
98 power-supply: true 87 power-supply: true
99 88
100 allOf: !! 89 if:
101 - if: !! 90 not:
102 not: !! 91 properties:
103 properties: !! 92 compatible:
104 compatible: !! 93 contains:
105 contains: !! 94 const: lvds-decoder
106 const: lvds-decoder !! 95 then:
107 then: !! 96 properties:
>> 97 ports:
108 properties: 98 properties:
109 ports: !! 99 port@0:
110 properties: 100 properties:
111 port@0: !! 101 endpoint:
112 properties: 102 properties:
113 endpoint: !! 103 data-mapping: false
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 <<
126 104
127 required: 105 required:
128 - compatible 106 - compatible
129 - ports 107 - ports
130 108
131 additionalProperties: false 109 additionalProperties: false
132 110
133 111
134 examples: 112 examples:
135 - | 113 - |
136 lvds-encoder { 114 lvds-encoder {
137 compatible = "ti,ds90c185", "lvds-encode 115 compatible = "ti,ds90c185", "lvds-encoder";
138 116
139 ports { 117 ports {
140 #address-cells = <1>; 118 #address-cells = <1>;
141 #size-cells = <0>; 119 #size-cells = <0>;
142 120
143 port@0 { 121 port@0 {
144 reg = <0>; 122 reg = <0>;
145 123
146 lvds_enc_in: endpoint { 124 lvds_enc_in: endpoint {
147 remote-endpoint = <&display_out_rg 125 remote-endpoint = <&display_out_rgb>;
148 }; 126 };
149 }; 127 };
150 128
151 port@1 { 129 port@1 {
152 reg = <1>; 130 reg = <1>;
153 131
154 lvds_enc_out: endpoint { 132 lvds_enc_out: endpoint {
155 remote-endpoint = <&lvds_panel_in> 133 remote-endpoint = <&lvds_panel_in>;
156 }; 134 };
157 }; 135 };
158 }; 136 };
159 }; 137 };
160 138
161 - | 139 - |
162 lvds-decoder { 140 lvds-decoder {
163 compatible = "ti,ds90cf384a", "lvds-deco 141 compatible = "ti,ds90cf384a", "lvds-decoder";
164 142
165 ports { 143 ports {
166 #address-cells = <1>; 144 #address-cells = <1>;
167 #size-cells = <0>; 145 #size-cells = <0>;
168 146
169 port@0 { 147 port@0 {
170 reg = <0>; 148 reg = <0>;
171 149
172 lvds_dec_in: endpoint { 150 lvds_dec_in: endpoint {
173 remote-endpoint = <&display_out_lv 151 remote-endpoint = <&display_out_lvds>;
174 }; 152 };
175 }; 153 };
176 154
177 port@1 { 155 port@1 {
178 reg = <1>; 156 reg = <1>;
179 157
180 lvds_dec_out: endpoint { 158 lvds_dec_out: endpoint {
181 remote-endpoint = <&rgb_panel_in>; 159 remote-endpoint = <&rgb_panel_in>;
182 }; 160 };
183 }; 161 };
184 }; 162 };
185 }; 163 };
186 164
187 ... 165 ...
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