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
7 title: Cadence DSI bridge
8
9 maintainers:
10 - Boris Brezillon <boris.brezillon@bootlin.com>
11
12 description: |
13 CDNS DSI is a bridge device which converts DPI to DSI
14
15 properties:
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
73 allOf:
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
93 required:
94 - compatible
95 - reg
96 - interrupts
97 - clocks
98 - clock-names
99 - phys
100 - phy-names
101 - ports
102
103 unevaluatedProperties: false
104
105 examples:
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 };
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