@@ -171,6 +171,32 @@ properties:
offer the power, Capability Mismatch is set. Required for power sink and
power dual role.
+ altmodes:
+ type: object
+ description: List of Alternative Modes supported by the schematics on the
+ particular device. This is only necessary if there are no other means to
+ discover supported alternative modes (e.g. through the UCSI firmware
+ interface).
+
+ additionalProperties: false
+
+ patternProperties:
+ "^(displayport)$":
+ type: object
+ description:
+ A single USB-C Alternative Mode as supported by the USB-C connector logic.
+
+ additionalProperties: false
+
+ properties:
+ svid:
+ $ref: /schemas/types.yaml#/definitions/uint16
+ description: Unique value assigned by USB-IF to the Vendor / AltMode.
+ enum: [ 0xff01 ]
+ vdo:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description: VDO returned by Discover Modes USB PD command.
+
port:
$ref: /schemas/graph.yaml#/properties/port
description: OF graph bindings modeling a data bus to the connector, e.g.
@@ -289,6 +315,13 @@ examples:
compatible = "usb-c-connector";
label = "USB-C";
+ altmodes {
+ displayport {
+ svid = /bits/ 16 <0xff01>;
+ vdo = <0x00001c46>;
+ };
+ };
+
ports {
#address-cells = <1>;
#size-cells = <0>;