xref: /linux/Documentation/devicetree/bindings/media/i2c/maxim,max96712.yaml (revision 9cc8d0ecdd2aad42e377e971e3bb114339df609e) 
1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2# Copyright (C) 2021 Renesas Electronics Corp.
3%YAML 1.2
4---
5$id: http://devicetree.org/schemas/media/i2c/maxim,max96712.yaml#
6$schema: http://devicetree.org/meta-schemas/core.yaml#
7
8title: Quad GMSL2 to CSI-2 Deserializer with GMSL1 Compatibility
9
10maintainers:
11  - Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
12
13description: |
14  The MAX96712 deserializer converts GMSL2 or GMSL1 serial inputs into MIPI
15  CSI-2 D-PHY or C-PHY formatted outputs. The device allows each link to
16  simultaneously transmit bidirectional control-channel data while forward
17  video transmissions are in progress. The MAX96712 can accommodate as many as
18  four remotely located sensors using industry-standard coax or STP
19  interconnects.
20
21  Each GMSL2 serial link operates at a fixed rate of 3Gbps or 6Gbps in the
22  forward direction and 187.5Mbps in the reverse direction. In GMSL1 mode, the
23  MAX96712 can be paired with first-generation 3.12Gbps or 1.5Gbps GMSL1
24  serializers or operate up to 3.12Gbps with GMSL2 serializers in GMSL1 mode.
25
26properties:
27  compatible:
28    items:
29      - enum:
30          - maxim,max96712
31          - maxim,max96724
32
33  reg:
34    description: I2C device address
35    maxItems: 1
36
37  enable-gpios: true
38
39  ports:
40    $ref: /schemas/graph.yaml#/properties/ports
41
42    properties:
43      port@0:
44        $ref: /schemas/graph.yaml#/properties/port
45        description: GMSL Input 0
46
47      port@1:
48        $ref: /schemas/graph.yaml#/properties/port
49        description: GMSL Input 1
50
51      port@2:
52        $ref: /schemas/graph.yaml#/properties/port
53        description: GMSL Input 2
54
55      port@3:
56        $ref: /schemas/graph.yaml#/properties/port
57        description: GMSL Input 3
58
59      port@4:
60        $ref: /schemas/graph.yaml#/$defs/port-base
61        unevaluatedProperties: false
62        description: CSI-2 Output
63
64        properties:
65          endpoint:
66            $ref: /schemas/media/video-interfaces.yaml#
67            unevaluatedProperties: false
68
69            properties:
70              data-lanes: true
71              bus-type:
72                enum:
73                  - 1 # MEDIA_BUS_TYPE_CSI2_CPHY
74                  - 4 # MEDIA_BUS_TYPE_CSI2_DPHY
75
76            required:
77              - data-lanes
78              - bus-type
79
80    required:
81      - port@4
82
83required:
84  - compatible
85  - reg
86  - ports
87
88additionalProperties: false
89
90examples:
91  - |
92    #include <dt-bindings/gpio/gpio.h>
93    #include <dt-bindings/media/video-interfaces.h>
94
95    i2c@e6508000 {
96            #address-cells = <1>;
97            #size-cells = <0>;
98
99            reg = <0 0xe6508000>;
100
101            gmsl0: gmsl-deserializer@49 {
102                    compatible = "maxim,max96712";
103                    reg = <0x49>;
104                    enable-gpios = <&pca9654_a 0 GPIO_ACTIVE_HIGH>;
105
106                    ports {
107                            #address-cells = <1>;
108                            #size-cells = <0>;
109
110                            port@4 {
111                                    reg = <4>;
112                                    max96712_out0: endpoint {
113                                            bus-type = <MEDIA_BUS_TYPE_CSI2_DPHY>;
114                                            clock-lanes = <0>;
115                                            data-lanes = <1 2 3 4>;
116                                            remote-endpoint = <&csi40_in>;
117                                    };
118                            };
119                    };
120            };
121    };
122