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| 1 | +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) |
| 2 | +%YAML 1.2 |
| 3 | +--- |
| 4 | +$id: http://devicetree.org/schemas/display/bridge/renesas,lvds.yaml# |
| 5 | +$schema: http://devicetree.org/meta-schemas/core.yaml# |
| 6 | + |
| 7 | +title: Renesas R-Car LVDS Encoder |
| 8 | + |
| 9 | +maintainers: |
| 10 | + - Laurent Pinchart <[email protected]> |
| 11 | + |
| 12 | +description: | |
| 13 | + These DT bindings describe the LVDS encoder embedded in the Renesas R-Car |
| 14 | + Gen2, R-Car Gen3, RZ/G1 and RZ/G2 SoCs. |
| 15 | +
|
| 16 | +properties: |
| 17 | + compatible: |
| 18 | + enum: |
| 19 | + - renesas,r8a7743-lvds # for RZ/G1M compatible LVDS encoders |
| 20 | + - renesas,r8a7744-lvds # for RZ/G1N compatible LVDS encoders |
| 21 | + - renesas,r8a774a1-lvds # for RZ/G2M compatible LVDS encoders |
| 22 | + - renesas,r8a774b1-lvds # for RZ/G2N compatible LVDS encoders |
| 23 | + - renesas,r8a774c0-lvds # for RZ/G2E compatible LVDS encoders |
| 24 | + - renesas,r8a7790-lvds # for R-Car H2 compatible LVDS encoders |
| 25 | + - renesas,r8a7791-lvds # for R-Car M2-W compatible LVDS encoders |
| 26 | + - renesas,r8a7793-lvds # for R-Car M2-N compatible LVDS encoders |
| 27 | + - renesas,r8a7795-lvds # for R-Car H3 compatible LVDS encoders |
| 28 | + - renesas,r8a7796-lvds # for R-Car M3-W compatible LVDS encoders |
| 29 | + - renesas,r8a77965-lvds # for R-Car M3-N compatible LVDS encoders |
| 30 | + - renesas,r8a77970-lvds # for R-Car V3M compatible LVDS encoders |
| 31 | + - renesas,r8a77980-lvds # for R-Car V3H compatible LVDS encoders |
| 32 | + - renesas,r8a77990-lvds # for R-Car E3 compatible LVDS encoders |
| 33 | + - renesas,r8a77995-lvds # for R-Car D3 compatible LVDS encoders |
| 34 | + |
| 35 | + reg: |
| 36 | + maxItems: 1 |
| 37 | + |
| 38 | + clocks: |
| 39 | + minItems: 1 |
| 40 | + maxItems: 4 |
| 41 | + |
| 42 | + clock-names: |
| 43 | + minItems: 1 |
| 44 | + maxItems: 4 |
| 45 | + |
| 46 | + resets: |
| 47 | + maxItems: 1 |
| 48 | + |
| 49 | + ports: |
| 50 | + type: object |
| 51 | + description: | |
| 52 | + This device has two video ports. Their connections are modelled using the |
| 53 | + OF graph bindings specified in Documentation/devicetree/bindings/graph.txt. |
| 54 | + Each port shall have a single endpoint. |
| 55 | +
|
| 56 | + properties: |
| 57 | + '#address-cells': |
| 58 | + const: 1 |
| 59 | + |
| 60 | + '#size-cells': |
| 61 | + const: 0 |
| 62 | + |
| 63 | + port@0: |
| 64 | + type: object |
| 65 | + description: Parallel RGB input port |
| 66 | + |
| 67 | + port@1: |
| 68 | + type: object |
| 69 | + description: LVDS output port |
| 70 | + |
| 71 | + required: |
| 72 | + - port@0 |
| 73 | + - port@1 |
| 74 | + |
| 75 | + additionalProperties: false |
| 76 | + |
| 77 | + power-domains: |
| 78 | + maxItems: 1 |
| 79 | + |
| 80 | + renesas,companion: |
| 81 | + $ref: /schemas/types.yaml#/definitions/phandle |
| 82 | + description: |
| 83 | + phandle to the companion LVDS encoder. This property is mandatory |
| 84 | + for the first LVDS encoder on D3 and E3 SoCs, and shall point to |
| 85 | + the second encoder to be used as a companion in dual-link mode. It |
| 86 | + shall not be set for any other LVDS encoder. |
| 87 | + |
| 88 | +required: |
| 89 | + - compatible |
| 90 | + - reg |
| 91 | + - clocks |
| 92 | + - power-domains |
| 93 | + - resets |
| 94 | + - ports |
| 95 | + |
| 96 | +if: |
| 97 | + properties: |
| 98 | + compatible: |
| 99 | + enum: |
| 100 | + - renesas,r8a774c0-lvds |
| 101 | + - renesas,r8a77990-lvds |
| 102 | + - renesas,r8a77995-lvds |
| 103 | +then: |
| 104 | + properties: |
| 105 | + clocks: |
| 106 | + minItems: 1 |
| 107 | + maxItems: 4 |
| 108 | + items: |
| 109 | + - description: Functional clock |
| 110 | + - description: EXTAL input clock |
| 111 | + - description: DU_DOTCLKIN0 input clock |
| 112 | + - description: DU_DOTCLKIN1 input clock |
| 113 | + |
| 114 | + clock-names: |
| 115 | + minItems: 1 |
| 116 | + maxItems: 4 |
| 117 | + items: |
| 118 | + - const: fck |
| 119 | + # The LVDS encoder can use the EXTAL or DU_DOTCLKINx clocks. |
| 120 | + # These clocks are optional. |
| 121 | + - enum: |
| 122 | + - extal |
| 123 | + - dclkin.0 |
| 124 | + - dclkin.1 |
| 125 | + - enum: |
| 126 | + - extal |
| 127 | + - dclkin.0 |
| 128 | + - dclkin.1 |
| 129 | + - enum: |
| 130 | + - extal |
| 131 | + - dclkin.0 |
| 132 | + - dclkin.1 |
| 133 | + |
| 134 | + required: |
| 135 | + - clock-names |
| 136 | + |
| 137 | +else: |
| 138 | + properties: |
| 139 | + clocks: |
| 140 | + maxItems: 1 |
| 141 | + items: |
| 142 | + - description: Functional clock |
| 143 | + |
| 144 | + clock-names: |
| 145 | + maxItems: 1 |
| 146 | + items: |
| 147 | + - const: fck |
| 148 | + |
| 149 | + renesas,companion: false |
| 150 | + |
| 151 | +additionalProperties: false |
| 152 | + |
| 153 | +examples: |
| 154 | + - | |
| 155 | + #include <dt-bindings/clock/renesas-cpg-mssr.h> |
| 156 | + #include <dt-bindings/power/r8a7795-sysc.h> |
| 157 | +
|
| 158 | + lvds@feb90000 { |
| 159 | + compatible = "renesas,r8a7795-lvds"; |
| 160 | + reg = <0xfeb90000 0x14>; |
| 161 | + clocks = <&cpg CPG_MOD 727>; |
| 162 | + power-domains = <&sysc R8A7795_PD_ALWAYS_ON>; |
| 163 | + resets = <&cpg 727>; |
| 164 | +
|
| 165 | + ports { |
| 166 | + #address-cells = <1>; |
| 167 | + #size-cells = <0>; |
| 168 | +
|
| 169 | + port@0 { |
| 170 | + reg = <0>; |
| 171 | + lvds_in: endpoint { |
| 172 | + remote-endpoint = <&du_out_lvds0>; |
| 173 | + }; |
| 174 | + }; |
| 175 | + port@1 { |
| 176 | + reg = <1>; |
| 177 | + lvds_out: endpoint { |
| 178 | + remote-endpoint = <&panel_in>; |
| 179 | + }; |
| 180 | + }; |
| 181 | + }; |
| 182 | + }; |
| 183 | +
|
| 184 | + - | |
| 185 | + #include <dt-bindings/clock/renesas-cpg-mssr.h> |
| 186 | + #include <dt-bindings/power/r8a77990-sysc.h> |
| 187 | +
|
| 188 | + lvds0: lvds@feb90000 { |
| 189 | + compatible = "renesas,r8a77990-lvds"; |
| 190 | + reg = <0xfeb90000 0x20>; |
| 191 | + clocks = <&cpg CPG_MOD 727>, |
| 192 | + <&x13_clk>, |
| 193 | + <&extal_clk>; |
| 194 | + clock-names = "fck", "dclkin.0", "extal"; |
| 195 | + power-domains = <&sysc R8A77990_PD_ALWAYS_ON>; |
| 196 | + resets = <&cpg 727>; |
| 197 | +
|
| 198 | + renesas,companion = <&lvds1>; |
| 199 | +
|
| 200 | + ports { |
| 201 | + #address-cells = <1>; |
| 202 | + #size-cells = <0>; |
| 203 | +
|
| 204 | + port@0 { |
| 205 | + reg = <0>; |
| 206 | + lvds0_in: endpoint { |
| 207 | + remote-endpoint = <&du_out_lvds0>; |
| 208 | + }; |
| 209 | + }; |
| 210 | + port@1 { |
| 211 | + reg = <1>; |
| 212 | + lvds0_out: endpoint { |
| 213 | + remote-endpoint = <&panel_in1>; |
| 214 | + }; |
| 215 | + }; |
| 216 | + }; |
| 217 | + }; |
| 218 | +
|
| 219 | + lvds1: lvds@feb90100 { |
| 220 | + compatible = "renesas,r8a77990-lvds"; |
| 221 | + reg = <0xfeb90100 0x20>; |
| 222 | + clocks = <&cpg CPG_MOD 727>, |
| 223 | + <&x13_clk>, |
| 224 | + <&extal_clk>; |
| 225 | + clock-names = "fck", "dclkin.0", "extal"; |
| 226 | + power-domains = <&sysc R8A77990_PD_ALWAYS_ON>; |
| 227 | + resets = <&cpg 726>; |
| 228 | +
|
| 229 | + ports { |
| 230 | + #address-cells = <1>; |
| 231 | + #size-cells = <0>; |
| 232 | +
|
| 233 | + port@0 { |
| 234 | + reg = <0>; |
| 235 | + lvds1_in: endpoint { |
| 236 | + remote-endpoint = <&du_out_lvds1>; |
| 237 | + }; |
| 238 | + }; |
| 239 | + port@1 { |
| 240 | + reg = <1>; |
| 241 | + lvds1_out: endpoint { |
| 242 | + remote-endpoint = <&panel_in2>; |
| 243 | + }; |
| 244 | + }; |
| 245 | + }; |
| 246 | + }; |
| 247 | +
|
| 248 | +... |
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