Documentation/devicetree/bindings/display/bridge/google,cros-ec-anx7688.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/google,cros-ec-anx7688.yaml#
   5 $schema: http://devicetree.org/meta-schemas/core.yaml#
   6
   7 title: ChromeOS EC ANX7688 HDMI to DP Converter through Type-C Port
   8
   9 maintainers:
  10   - Nicolas Boichat <drinkcat@chromium.org>
  11
  12 description: |
  13   ChromeOS EC ANX7688 is a display bridge that converts HDMI 2.0 to
  14   DisplayPort 1.3 Ultra-HDi (4096x2160p60). It is an Analogix ANX7688 chip
  15   which is connected to and operated by the ChromeOS Embedded Controller
  16   (See google,cros-ec.yaml). It is accessed using I2C tunneling through
  17   the EC and therefore its node should be a child of an EC I2C tunnel node
  18   (See google,cros-ec-i2c-tunnel.yaml).
  19
  20 properties:
  21   compatible:
  22     const: google,cros-ec-anx7688
  23
  24   reg:
  25     maxItems: 1
  26     description: I2C address of the device.
  27
  28   ports:
  29     $ref: /schemas/graph.yaml#/properties/ports
  30
  31     properties:
  32       port@0:
  33         $ref: /schemas/graph.yaml#/properties/port
  34         description: Video port for HDMI input.
  35
  36       port@1:
  37         $ref: /schemas/graph.yaml#/properties/port
  38         description: USB Type-c connector.
  39
  40     required:
  41       - port@0
  42       - port@1
  43
  44 required:
  45   - compatible
  46   - reg
  47   - ports
  48
  49 additionalProperties: false
  50
  51 examples:
  52   - |
  53     i2c_tunnel_b: i2c-tunnel1 {
  54         compatible = "google,cros-ec-i2c-tunnel";
  55         google,remote-bus = <1>;
  56         #address-cells = <1>;
  57         #size-cells = <0>;
  58
  59         anx7688: anx7688@2c {
  60             compatible = "google,cros-ec-anx7688";
  61             reg = <0x2c>;
  62
  63             ports {
  64                 #address-cells = <1>;
  65                 #size-cells = <0>;
  66                 port@0 {
  67                     reg = <0>;
  68                     anx7688_in: endpoint {
  69                         remote-endpoint = <&hdmi0_out>;
  70                     };
  71                 };
  72                 port@1 {
  73                     reg = <1>;
  74                     anx7688_out: endpoint {
  75                         remote-endpoint = <&typec_connector>;
  76                     };
  77                 };
  78             };
  79         };
  80     };