cdns,dsi.yaml

  1# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
  2%YAML 1.2
  3---
  4$id: http://devicetree.org/schemas/display/bridge/cdns,dsi.yaml#
  5$schema: http://devicetree.org/meta-schemas/core.yaml#
  6
  7title: Cadence DSI bridge
  8
  9maintainers:
 10  - Boris Brezillon <boris.brezillon@bootlin.com>
 11
 12description: |
 13   CDNS DSI is a bridge device which converts DPI to DSI
 14
 15properties:
 16  compatible:
 17    enum:
 18      - cdns,dsi
 19      - ti,j721e-dsi
 20
 21  reg:
 22    minItems: 1
 23    items:
 24      - description:
 25          Register block for controller's registers.
 26      - description:
 27          Register block for wrapper settings registers in case of TI J7 SoCs.
 28
 29  clocks:
 30    items:
 31      - description: PSM clock, used by the IP
 32      - description: sys clock, used by the IP
 33
 34  clock-names:
 35    items:
 36      - const: dsi_p_clk
 37      - const: dsi_sys_clk
 38
 39  phys:
 40    maxItems: 1
 41
 42  phy-names:
 43    const: dphy
 44
 45  interrupts:
 46    maxItems: 1
 47
 48  resets:
 49    maxItems: 1
 50
 51  reset-names:
 52    const: dsi_p_rst
 53
 54  ports:
 55    $ref: /schemas/graph.yaml#/properties/ports
 56
 57    properties:
 58      port@0:
 59        $ref: /schemas/graph.yaml#/properties/port
 60        description:
 61          Output port representing the DSI output. It can have
 62          at most 4 endpoints. The endpoint number is directly encoding
 63          the DSI virtual channel used by this device.
 64
 65      port@1:
 66        $ref: /schemas/graph.yaml#/properties/port
 67        description:
 68          Input port representing the DPI input.
 69
 70    required:
 71      - port@1
 72
 73allOf:
 74  - $ref: ../dsi-controller.yaml#
 75
 76  - if:
 77      properties:
 78        compatible:
 79          contains:
 80            const: ti,j721e-dsi
 81    then:
 82      properties:
 83        reg:
 84          minItems: 2
 85          maxItems: 2
 86        power-domains:
 87          maxItems: 1
 88    else:
 89      properties:
 90        reg:
 91          maxItems: 1
 92
 93required:
 94  - compatible
 95  - reg
 96  - interrupts
 97  - clocks
 98  - clock-names
 99  - phys
100  - phy-names
101  - ports
102
103unevaluatedProperties: false
104
105examples:
106  - |
107    bus {
108        #address-cells = <2>;
109        #size-cells = <2>;
110
111        dsi@fd0c0000 {
112            compatible = "cdns,dsi";
113            reg = <0x0 0xfd0c0000 0x0 0x1000>;
114            clocks = <&pclk>, <&sysclk>;
115            clock-names = "dsi_p_clk", "dsi_sys_clk";
116            interrupts = <1>;
117            phys = <&dphy0>;
118            phy-names = "dphy";
119
120            #address-cells = <1>;
121            #size-cells = <0>;
122
123            ports {
124                #address-cells = <1>;
125                #size-cells = <0>;
126
127                port@1 {
128                    reg = <1>;
129                    endpoint {
130                        remote-endpoint = <&xxx_dpi_output>;
131                    };
132                };
133            };
134
135            panel@0 {
136                compatible = "panasonic,vvx10f034n00";
137                reg = <0>;
138                power-supply = <&vcc_lcd_reg>;
139            };
140        };
141    };
142
143  - |
144    bus {
145        #address-cells = <2>;
146        #size-cells = <2>;
147
148        dsi@fd0c0000 {
149            compatible = "cdns,dsi";
150            reg = <0x0 0xfd0c0000 0x0 0x1000>;
151            clocks = <&pclk>, <&sysclk>;
152            clock-names = "dsi_p_clk", "dsi_sys_clk";
153            interrupts = <1>;
154            phys = <&dphy1>;
155            phy-names = "dphy";
156
157            ports {
158                #address-cells = <1>;
159                #size-cells = <0>;
160
161                port@0 {
162                    reg = <0>;
163                    #address-cells = <1>;
164                    #size-cells = <0>;
165
166                    endpoint@0 {
167                        reg = <0>;
168                        remote-endpoint = <&dsi_panel_input>;
169                    };
170                };
171
172                port@1 {
173                    reg = <1>;
174                    endpoint {
175                        remote-endpoint = <&xxx_dpi_output>;
176                    };
177                };
178            };
179        };
180    };