Documentation/devicetree/bindings/display/bridge/ite,it6505.yaml

   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/ite,it6505.yaml#
   5 $schema: http://devicetree.org/meta-schemas/core.yaml#
   6
   7 title: ITE it6505
   8
   9 maintainers:
  10   - Allen Chen <allen.chen@ite.com.tw>
  11
  12 description: |
  13   The IT6505 is a high-performance DisplayPort 1.1a transmitter,
  14   fully compliant with DisplayPort 1.1a, HDCP 1.3 specifications.
  15   The IT6505 supports color depth of up to 36 bits (12 bits/color)
  16   and ensures robust transmission of high-quality uncompressed video
  17   content, along with uncompressed and compressed digital audio content.
  18
  19   Aside from the various video output formats supported, the IT6505
  20   also encodes and transmits up to 8 channels of I2S digital audio,
  21   with sampling rate up to 192kHz and sample size up to 24 bits.
  22   In addition, an S/PDIF input port takes in compressed audio of up to
  23   192kHz frame rate.
  24
  25   Each IT6505 chip comes preprogrammed with an unique HDCP key,
  26   in compliance with the HDCP 1.3 standard so as to provide secure
  27   transmission of high-definition content. Users of the IT6505 need not
  28   purchase any HDCP keys or ROMs.
  29
  30 properties:
  31   compatible:
  32     const: ite,it6505
  33
  34   reg:
  35     maxItems: 1
  36
  37   ovdd-supply:
  38     description: I/O voltage
  39
  40   pwr18-supply:
  41     description: core voltage
  42
  43   interrupts:
  44     maxItems: 1
  45     description: interrupt specifier of INT pin
  46
  47   reset-gpios:
  48     maxItems: 1
  49     description: gpio specifier of RESET pin
  50
  51   extcon:
  52     maxItems: 1
  53     description: extcon specifier for the Power Delivery
  54
  55   ports:
  56     $ref: /schemas/graph.yaml#/properties/ports
  57
  58     properties:
  59       port@0:
  60         $ref: /schemas/graph.yaml#/$defs/port-base
  61         unevaluatedProperties: false
  62         description: A port node pointing to DPI host port node
  63
  64         properties:
  65           endpoint:
  66             $ref: /schemas/graph.yaml#/$defs/endpoint-base
  67             unevaluatedProperties: false
  68
  69             properties:
  70               link-frequencies:
  71                 minItems: 1
  72                 maxItems: 1
  73                 description: Allowed max link frequencies in Hz
  74
  75       port@1:
  76         $ref: /schemas/graph.yaml#/$defs/port-base
  77         unevaluatedProperties: false
  78         description: Video port for DP output
  79
  80         properties:
  81           endpoint:
  82             $ref: /schemas/graph.yaml#/$defs/endpoint-base
  83             unevaluatedProperties: false
  84
  85             properties:
  86               data-lanes:
  87                 minItems: 1
  88                 uniqueItems: true
  89                 items:
  90                   - enum: [ 0, 1 ]
  91                   - const: 1
  92                   - const: 2
  93                   - const: 3
  94
  95     required:
  96       - port@0
  97       - port@1
  98
  99 required:
 100   - compatible
 101   - ovdd-supply
 102   - pwr18-supply
 103   - interrupts
 104   - reset-gpios
 105   - extcon
 106   - ports
 107
 108 additionalProperties: false
 109
 110 examples:
 111   - |
 112     #include <dt-bindings/interrupt-controller/irq.h>
 113
 114     i2c {
 115         #address-cells = <1>;
 116         #size-cells = <0>;
 117
 118         dp-bridge@5c {
 119             compatible = "ite,it6505";
 120             interrupts = <152 IRQ_TYPE_EDGE_FALLING 152 0>;
 121             reg = <0x5c>;
 122             pinctrl-names = "default";
 123             pinctrl-0 = <&it6505_pins>;
 124             ovdd-supply = <&mt6358_vsim1_reg>;
 125             pwr18-supply = <&it6505_pp18_reg>;
 126             reset-gpios = <&pio 179 1>;
 127             extcon = <&usbc_extcon>;
 128
 129             ports {
 130                 #address-cells = <1>;
 131                 #size-cells = <0>;
 132
 133                 port@0 {
 134                     reg = <0>;
 135                     it6505_in: endpoint {
 136                         remote-endpoint = <&dpi_out>;
 137                         link-frequencies = /bits/ 64 <150000000>;
 138                     };
 139                 };
 140
 141                 port@1 {
 142                     reg = <1>;
 143                     it6505_out: endpoint {
 144                         remote-endpoint = <&dp_in>;
 145                         data-lanes = <0 1>;
 146                     };
 147                 };
 148             };
 149         };
 150     };