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| author | Dmitry Baryshkov <dmitry.baryshkov@linaro.org> | 2023-12-04 05:03:00 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-12-15 15:53:44 +0300 |
| commit | d1756ac67e7f8d4c15ba4dd0c132e593b0a56de6 (patch) | |
| tree | d4b6ed53f1c3fea6664dc6b64302a8ed306fb9ca /Documentation/devicetree | |
| parent | 7516f86aa5ec9f3f2ae1c5c12b56eef76c7b1a15 (diff) | |
| download | linux-d1756ac67e7f8d4c15ba4dd0c132e593b0a56de6.tar.xz | |
dt-bindings: connector: usb: add altmodes description
Add description of the USB-C AltModes supported on the particular USB-C
connector. This is required for devices like Qualcomm Robotics RB5,
which have no other way to express alternative modes supported by the
hardware platform.
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Link: https://lore.kernel.org/r/20231204020303.2287338-2-dmitry.baryshkov@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'Documentation/devicetree')
| -rw-r--r-- | Documentation/devicetree/bindings/connector/usb-connector.yaml | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/connector/usb-connector.yaml b/Documentation/devicetree/bindings/connector/usb-connector.yaml index 7c8a3e8430d3..28660b931d0c 100644 --- a/Documentation/devicetree/bindings/connector/usb-connector.yaml +++ b/Documentation/devicetree/bindings/connector/usb-connector.yaml @@ -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>; |