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/parade,ps8622.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6
7 title: Parade PS8622/PS8625 DisplayPort to LVDS Converter
8
9 maintainers:
10 - Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
11
12 properties:
13 compatible:
14 enum:
15 - parade,ps8622
16 - parade,ps8625
17
18 reg:
19 maxItems: 1
20
21 lane-count:
22 $ref: /schemas/types.yaml#/definitions/uint32
23 enum: [1, 2]
24 description: Number of DP lanes to use.
25
26 use-external-pwm:
27 type: boolean
28 description: Backlight will be controlled by an external PWM.
29
30 reset-gpios:
31 maxItems: 1
32 description: GPIO connected to RST_ pin.
33
34 sleep-gpios:
35 maxItems: 1
36 description: GPIO connected to PD_ pin.
37
38 vdd12-supply: true
39
40 ports:
41 $ref: /schemas/graph.yaml#/properties/ports
42
43 properties:
44 port@0:
45 $ref: /schemas/graph.yaml#/properties/port
46 description: Video port for LVDS output.
47
48 port@1:
49 $ref: /schemas/graph.yaml#/properties/port
50 description: Video port for DisplayPort input.
51
52 required:
53 - port@0
54 - port@1
55
56 required:
57 - compatible
58 - reg
59 - reset-gpios
60 - sleep-gpios
61 - ports
62
63 allOf:
64 - if:
65 properties:
66 compatible:
67 const: parade,ps8622
68 then:
69 properties:
70 lane-count:
71 const: 1
72 else:
73 properties:
74 lane-count:
75 const: 2
76
77 additionalProperties: false
78
79 examples:
80 - |
81 #include <dt-bindings/gpio/gpio.h>
82 i2c {
83 #address-cells = <1>;
84 #size-cells = <0>;
85
86 lvds-bridge@48 {
87 compatible = "parade,ps8625";
88 reg = <0x48>;
89 sleep-gpios = <&gpx3 5 GPIO_ACTIVE_HIGH>;
90 reset-gpios = <&gpy7 7 GPIO_ACTIVE_HIGH>;
91 lane-count = <2>;
92 use-external-pwm;
93
94 ports {
95 #address-cells = <1>;
96 #size-cells = <0>;
97
98 port@0 {
99 reg = <0>;
100
101 bridge_out: endpoint {
102 remote-endpoint = <&panel_in>;
103 };
104 };
105
106 port@1 {
107 reg = <1>;
108
109 bridge_in: endpoint {
110 remote-endpoint = <&dp_out>;
111 };
112 };
113 };
114 };
115 };
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