xref: /linux/Documentation/devicetree/bindings/display/bridge/fsl,ldb.yaml (revision 1fd1dc41724319406b0aff221a352a400b0ddfc5) 
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  - reg
63
64allOf:
65  - if:
66      properties:
67        compatible:
68          contains:
69            enum:
70              - fsl,imx6sx-ldb
71              - fsl,imx93-ldb
72    then:
73      properties:
74        ports:
75          properties:
76            port@2: false
77  - if:
78      not:
79        properties:
80          compatible:
81            contains:
82              const: fsl,imx6sx-ldb
83    then:
84      required:
85        - reg-names
86
87additionalProperties: false
88
89examples:
90  - |
91    #include <dt-bindings/clock/imx8mp-clock.h>
92
93    blk-ctrl {
94        #address-cells = <1>;
95        #size-cells = <1>;
96
97        bridge@5c {
98            compatible = "fsl,imx8mp-ldb";
99            clocks = <&clk IMX8MP_CLK_MEDIA_LDB>;
100            clock-names = "ldb";
101            reg = <0x5c 0x4>, <0x128 0x4>;
102            reg-names = "ldb", "lvds";
103
104            ports {
105                #address-cells = <1>;
106                #size-cells = <0>;
107
108                port@0 {
109                    reg = <0>;
110
111                    ldb_from_lcdif2: endpoint {
112                        remote-endpoint = <&lcdif2_to_ldb>;
113                    };
114                };
115
116                port@1 {
117                    reg = <1>;
118
119                    ldb_lvds_ch0: endpoint {
120                        remote-endpoint = <&ldb_to_lvdsx4panel>;
121                    };
122                };
123
124                port@2 {
125                    reg = <2>;
126
127                    ldb_lvds_ch1: endpoint {
128                    };
129                };
130            };
131        };
132    };
133