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