xref: /freebsd/sys/contrib/device-tree/Bindings/display/bridge/cdns,dsi.yaml (revision 95eb4b873b6a8b527c5bd78d7191975dfca38998) 
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    };
181