xref: /freebsd/sys/contrib/device-tree/Bindings/display/bridge/lontium,lt8912b.yaml (revision ec0ea6efa1ad229d75c394c1a9b9cac33af2b1d3) 
1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/display/bridge/lontium,lt8912b.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: Lontium LT8912B MIPI to HDMI Bridge
8
9maintainers:
10  - Adrien Grassein <adrien.grassein@gmail.com>
11
12description: |
13  The LT8912B is a bridge device which convert DSI to HDMI
14
15properties:
16  compatible:
17    enum:
18      - lontium,lt8912b
19
20  reg:
21    maxItems: 1
22
23  reset-gpios:
24    maxItems: 1
25    description: GPIO connected to active high RESET pin.
26
27  ports:
28    $ref: /schemas/graph.yaml#/properties/ports
29
30    properties:
31      port@0:
32        $ref: /schemas/graph.yaml#/properties/port
33        description:
34          Primary MIPI port for MIPI input
35
36        properties:
37          endpoint:
38            $ref: /schemas/media/video-interfaces.yaml#
39            unevaluatedProperties: false
40
41            properties:
42              data-lanes: true
43
44            required:
45              - data-lanes
46
47      port@1:
48        $ref: /schemas/graph.yaml#/properties/port
49        description: |
50          HDMI port, should be connected to a node compatible with the
51          hdmi-connector binding.
52
53    required:
54      - port@0
55      - port@1
56
57required:
58  - compatible
59  - reg
60  - reset-gpios
61  - ports
62
63additionalProperties: false
64
65examples:
66  - |
67    #include <dt-bindings/gpio/gpio.h>
68
69    i2c4 {
70      #address-cells = <1>;
71      #size-cells = <0>;
72
73      hdmi-bridge@48 {
74        compatible = "lontium,lt8912b";
75        reg = <0x48>;
76        reset-gpios = <&max7323 0 GPIO_ACTIVE_LOW>;
77
78        ports {
79          #address-cells = <1>;
80          #size-cells = <0>;
81
82          port@0 {
83            reg = <0>;
84
85            hdmi_out_in: endpoint {
86              data-lanes = <0 1 2 3>;
87              remote-endpoint = <&mipi_dsi_out>;
88            };
89          };
90
91          port@1 {
92              reg = <1>;
93
94              endpoint {
95                  remote-endpoint = <&hdmi_in>;
96              };
97          };
98        };
99      };
100    };
101
102...
103