ti,sn65dsi83.yaml

  1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
  2%YAML 1.2
  3---
  4$id: http://devicetree.org/schemas/display/bridge/ti,sn65dsi83.yaml#
  5$schema: http://devicetree.org/meta-schemas/core.yaml#
  6
  7title: SN65DSI83 and SN65DSI84 DSI to LVDS bridge chip
  8
  9maintainers:
 10  - Marek Vasut <marex@denx.de>
 11
 12description: |
 13  Texas Instruments SN65DSI83 1x Single-link MIPI DSI
 14  to 1x Single-link LVDS
 15  https://www.ti.com/lit/gpn/sn65dsi83
 16  Texas Instruments SN65DSI84 1x Single-link MIPI DSI
 17  to 1x Dual-link or 2x Single-link LVDS
 18  https://www.ti.com/lit/gpn/sn65dsi84
 19
 20properties:
 21  compatible:
 22    enum:
 23      - ti,sn65dsi83
 24      - ti,sn65dsi84
 25
 26  reg:
 27    enum:
 28      - 0x2c
 29      - 0x2d
 30
 31  enable-gpios:
 32    maxItems: 1
 33    description: GPIO specifier for bridge_en pin (active high).
 34
 35  vcc-supply:
 36    description: A 1.8V power supply (see regulator/regulator.yaml).
 37
 38  interrupts:
 39    maxItems: 1
 40
 41  ports:
 42    $ref: /schemas/graph.yaml#/properties/ports
 43
 44    properties:
 45      port@0:
 46        $ref: /schemas/graph.yaml#/$defs/port-base
 47        unevaluatedProperties: false
 48        description: Video port for MIPI DSI Channel-A input
 49
 50        properties:
 51          endpoint:
 52            $ref: /schemas/media/video-interfaces.yaml#
 53            unevaluatedProperties: false
 54
 55            properties:
 56              data-lanes:
 57                description: array of physical DSI data lane indexes.
 58                minItems: 1
 59                items:
 60                  - const: 1
 61                  - const: 2
 62                  - const: 3
 63                  - const: 4
 64
 65      port@1:
 66        $ref: /schemas/graph.yaml#/$defs/port-base
 67        unevaluatedProperties: false
 68        description: Video port for MIPI DSI Channel-B input
 69
 70        properties:
 71          endpoint:
 72            $ref: /schemas/media/video-interfaces.yaml#
 73            unevaluatedProperties: false
 74
 75            properties:
 76              data-lanes:
 77                description: array of physical DSI data lane indexes.
 78                minItems: 1
 79                items:
 80                  - const: 1
 81                  - const: 2
 82                  - const: 3
 83                  - const: 4
 84
 85      port@2:
 86        description: Video port for LVDS Channel-A output (panel or bridge).
 87        $ref: '#/$defs/lvds-port'
 88
 89      port@3:
 90        description: Video port for LVDS Channel-B output (panel or bridge).
 91        $ref: '#/$defs/lvds-port'
 92
 93    required:
 94      - port@0
 95      - port@2
 96
 97required:
 98  - compatible
 99  - reg
100  - ports
101
102$defs:
103  lvds-port:
104    $ref: /schemas/graph.yaml#/$defs/port-base
105    unevaluatedProperties: false
106
107    properties:
108      endpoint:
109        $ref: /schemas/media/video-interfaces.yaml#
110        unevaluatedProperties: false
111
112        properties:
113          ti,lvds-termination-ohms:
114            description: The value of near end differential termination in ohms.
115            enum: [100, 200]
116            default: 200
117
118          ti,lvds-vod-swing-clock-microvolt:
119            description: LVDS diferential output voltage <min max> for clock
120              lanes in microvolts.
121            maxItems: 2
122
123          ti,lvds-vod-swing-data-microvolt:
124            description: LVDS diferential output voltage <min max> for data
125              lanes in microvolts.
126            maxItems: 2
127
128allOf:
129  - if:
130      properties:
131        compatible:
132          contains:
133            const: ti,sn65dsi83
134    then:
135      properties:
136        ports:
137          properties:
138            port@1: false
139            port@3: false
140
141  - if:
142      properties:
143        compatible:
144          contains:
145            const: ti,sn65dsi84
146    then:
147      properties:
148        ports:
149          properties:
150            port@1: false
151
152additionalProperties: false
153
154examples:
155  - |
156    #include <dt-bindings/gpio/gpio.h>
157
158    i2c {
159        #address-cells = <1>;
160        #size-cells = <0>;
161
162        bridge@2d {
163            compatible = "ti,sn65dsi83";
164            reg = <0x2d>;
165
166            enable-gpios = <&gpio2 1 GPIO_ACTIVE_HIGH>;
167            vcc-supply = <&reg_sn65dsi83_1v8>;
168
169            ports {
170                #address-cells = <1>;
171                #size-cells = <0>;
172
173                port@0 {
174                    reg = <0>;
175
176                    endpoint {
177                        remote-endpoint = <&dsi0_out>;
178                        data-lanes = <1 2 3 4>;
179                    };
180                };
181
182                port@2 {
183                    reg = <2>;
184
185                    endpoint {
186                        remote-endpoint = <&panel_in_lvds>;
187                    };
188                };
189            };
190        };
191    };