xref: /linux/Documentation/devicetree/bindings/display/bridge/fsl,ldb.yaml (revision 6e7fd890f1d6ac83805409e9c346240de2705584) 
1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/display/bridge/fsl,ldb.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: Freescale i.MX8MP DPI to LVDS bridge chip
8
9maintainers:
10  - Marek Vasut <marex@denx.de>
11
12description: |
13  The i.MX8MP mediamix contains two registers which are responsible
14  for configuring the on-SoC DPI-to-LVDS serializer. This describes
15  those registers as bridge within the DT.
16
17properties:
18  compatible:
19    enum:
20      - fsl,imx6sx-ldb
21      - fsl,imx8mp-ldb
22      - fsl,imx93-ldb
23
24  clocks:
25    maxItems: 1
26
27  clock-names:
28    const: ldb
29
30  reg:
31    maxItems: 2
32
33  reg-names:
34    items:
35      - const: ldb
36      - const: lvds
37
38  ports:
39    $ref: /schemas/graph.yaml#/properties/ports
40
41    properties:
42      port@0:
43        $ref: /schemas/graph.yaml#/properties/port
44        description: Video port for DPI input.
45
46      port@1:
47        $ref: /schemas/graph.yaml#/properties/port
48        description: Video port for LVDS Channel-A output (panel or bridge).
49
50      port@2:
51        $ref: /schemas/graph.yaml#/properties/port
52        description: Video port for LVDS Channel-B output (panel or bridge).
53
54    required:
55      - port@0
56      - port@1
57
58required:
59  - compatible
60  - clocks
61  - ports
62
63allOf:
64  - if:
65      properties:
66        compatible:
67          contains:
68            enum:
69              - fsl,imx6sx-ldb
70              - fsl,imx93-ldb
71    then:
72      properties:
73        ports:
74          properties:
75            port@2: false
76
77additionalProperties: false
78
79examples:
80  - |
81    #include <dt-bindings/clock/imx8mp-clock.h>
82
83    blk-ctrl {
84        #address-cells = <1>;
85        #size-cells = <1>;
86
87        bridge@5c {
88            compatible = "fsl,imx8mp-ldb";
89            clocks = <&clk IMX8MP_CLK_MEDIA_LDB>;
90            clock-names = "ldb";
91            reg = <0x5c 0x4>, <0x128 0x4>;
92            reg-names = "ldb", "lvds";
93
94            ports {
95                #address-cells = <1>;
96                #size-cells = <0>;
97
98                port@0 {
99                    reg = <0>;
100
101                    ldb_from_lcdif2: endpoint {
102                        remote-endpoint = <&lcdif2_to_ldb>;
103                    };
104                };
105
106                port@1 {
107                    reg = <1>;
108
109                    ldb_lvds_ch0: endpoint {
110                        remote-endpoint = <&ldb_to_lvdsx4panel>;
111                    };
112                };
113
114                port@2 {
115                    reg = <2>;
116
117                    ldb_lvds_ch1: endpoint {
118                    };
119                };
120            };
121        };
122    };
123