Documentation/devicetree/bindings/media/i2c/maxim,max96712.yaml

   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
   8 title: Quad GMSL2 to CSI-2 Deserializer with GMSL1 Compatibility
   9
  10 maintainers:
  11   - Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
  12
  13 description: |
  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
  26 properties:
  27   compatible:
  28     const: maxim,max96712
  29
  30   reg:
  31     description: I2C device address
  32     maxItems: 1
  33
  34   enable-gpios: true
  35
  36   ports:
  37     $ref: /schemas/graph.yaml#/properties/ports
  38
  39     properties:
  40       port@0:
  41         $ref: /schemas/graph.yaml#/properties/port
  42         description: GMSL Input 0
  43
  44       port@1:
  45         $ref: /schemas/graph.yaml#/properties/port
  46         description: GMSL Input 1
  47
  48       port@2:
  49         $ref: /schemas/graph.yaml#/properties/port
  50         description: GMSL Input 2
  51
  52       port@3:
  53         $ref: /schemas/graph.yaml#/properties/port
  54         description: GMSL Input 3
  55
  56       port@4:
  57         $ref: /schemas/graph.yaml#/$defs/port-base
  58         unevaluatedProperties: false
  59         description: CSI-2 Output
  60
  61         properties:
  62           endpoint:
  63             $ref: /schemas/media/video-interfaces.yaml#
  64             unevaluatedProperties: false
  65
  66             properties:
  67               data-lanes: true
  68               bus-type:
  69                 enum:
  70                   - 1 # MEDIA_BUS_TYPE_CSI2_CPHY
  71                   - 4 # MEDIA_BUS_TYPE_CSI2_DPHY
  72
  73             required:
  74               - data-lanes
  75               - bus-type
  76
  77     required:
  78       - port@4
  79
  80 required:
  81   - compatible
  82   - reg
  83   - ports
  84
  85 additionalProperties: false
  86
  87 examples:
  88   - |
  89     #include <dt-bindings/gpio/gpio.h>
  90     #include <dt-bindings/media/video-interfaces.h>
  91
  92     i2c@e6508000 {
  93             #address-cells = <1>;
  94             #size-cells = <0>;
  95
  96             reg = <0 0xe6508000>;
  97
  98             gmsl0: gmsl-deserializer@49 {
  99                     compatible = "maxim,max96712";
 100                     reg = <0x49>;
 101                     enable-gpios = <&pca9654_a 0 GPIO_ACTIVE_HIGH>;
 102
 103                     ports {
 104                             #address-cells = <1>;
 105                             #size-cells = <0>;
 106
 107                             port@4 {
 108                                     reg = <4>;
 109                                     max96712_out0: endpoint {
 110                                             bus-type = <MEDIA_BUS_TYPE_CSI2_DPHY>;
 111                                             clock-lanes = <0>;
 112                                             data-lanes = <1 2 3 4>;
 113                                             remote-endpoint = <&csi40_in>;
 114                                     };
 115                             };
 116                     };
 117             };
 118     };