xref: /freebsd/sys/contrib/device-tree/Bindings/display/bridge/lontium,lt8912b.yaml (revision 8ddb146abcdf061be9f2c0db7e391697dafad85c) 
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        $ref: /schemas/graph.yaml#/$defs/port-base
33        unevaluatedProperties: false
34        description:
35          Primary MIPI port for MIPI input
36
37        properties:
38          endpoint:
39            $ref: /schemas/media/video-interfaces.yaml#
40            unevaluatedProperties: false
41
42            properties:
43              data-lanes: true
44
45            required:
46              - data-lanes
47
48      port@1:
49        $ref: /schemas/graph.yaml#/properties/port
50        description: |
51          HDMI port, should be connected to a node compatible with the
52          hdmi-connector binding.
53
54    required:
55      - port@0
56      - port@1
57
58required:
59  - compatible
60  - reg
61  - reset-gpios
62  - ports
63
64additionalProperties: false
65
66examples:
67  - |
68    #include <dt-bindings/gpio/gpio.h>
69
70    i2c4 {
71      #address-cells = <1>;
72      #size-cells = <0>;
73
74      hdmi-bridge@48 {
75        compatible = "lontium,lt8912b";
76        reg = <0x48>;
77        reset-gpios = <&max7323 0 GPIO_ACTIVE_LOW>;
78
79        ports {
80          #address-cells = <1>;
81          #size-cells = <0>;
82
83          port@0 {
84            reg = <0>;
85
86            hdmi_out_in: endpoint {
87              data-lanes = <0 1 2 3>;
88              remote-endpoint = <&mipi_dsi_out>;
89            };
90          };
91
92          port@1 {
93              reg = <1>;
94
95              endpoint {
96                  remote-endpoint = <&hdmi_in>;
97              };
98          };
99        };
100      };
101    };
102
103...
104