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