0001 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
0002 %YAML 1.2
0003 ---
0004 $id: http://devicetree.org/schemas/display/bridge/google,cros-ec-anx7688.yaml#
0005 $schema: http://devicetree.org/meta-schemas/core.yaml#
0006
0007 title: ChromeOS EC ANX7688 HDMI to DP Converter through Type-C Port
0008
0009 maintainers:
0010 - Nicolas Boichat <drinkcat@chromium.org>
0011
0012 description: |
0013 ChromeOS EC ANX7688 is a display bridge that converts HDMI 2.0 to
0014 DisplayPort 1.3 Ultra-HDi (4096x2160p60). It is an Analogix ANX7688 chip
0015 which is connected to and operated by the ChromeOS Embedded Controller
0016 (See google,cros-ec.yaml). It is accessed using I2C tunneling through
0017 the EC and therefore its node should be a child of an EC I2C tunnel node
0018 (See google,cros-ec-i2c-tunnel.yaml).
0019
0020 properties:
0021 compatible:
0022 const: google,cros-ec-anx7688
0023
0024 reg:
0025 maxItems: 1
0026 description: I2C address of the device.
0027
0028 ports:
0029 $ref: /schemas/graph.yaml#/properties/ports
0030
0031 properties:
0032 port@0:
0033 $ref: /schemas/graph.yaml#/properties/port
0034 description: Video port for HDMI input.
0035
0036 port@1:
0037 $ref: /schemas/graph.yaml#/properties/port
0038 description: USB Type-c connector.
0039
0040 required:
0041 - port@0
0042 - port@1
0043
0044 required:
0045 - compatible
0046 - reg
0047 - ports
0048
0049 additionalProperties: false
0050
0051 examples:
0052 - |
0053 i2c_tunnel_b: i2c-tunnel1 {
0054 compatible = "google,cros-ec-i2c-tunnel";
0055 google,remote-bus = <1>;
0056 #address-cells = <1>;
0057 #size-cells = <0>;
0058
0059 anx7688: anx7688@2c {
0060 compatible = "google,cros-ec-anx7688";
0061 reg = <0x2c>;
0062
0063 ports {
0064 #address-cells = <1>;
0065 #size-cells = <0>;
0066 port@0 {
0067 reg = <0>;
0068 anx7688_in: endpoint {
0069 remote-endpoint = <&hdmi0_out>;
0070 };
0071 };
0072 port@1 {
0073 reg = <1>;
0074 anx7688_out: endpoint {
0075 remote-endpoint = <&typec_connector>;
0076 };
0077 };
0078 };
0079 };
0080 };
