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SubjectRe: [PATCH V4 2/6] bindings: usb: dwc3: Update dwc3 properties for EUD connector
On Fri 21 Jan 07:53 CST 2022, Souradeep Chowdhury wrote:

> Add the ports property for dwc3 node. This port can be used
> by the Embedded USB Debugger for role switching the controller
> from device to host mode and vice versa.
>
> Signed-off-by: Souradeep Chowdhury <quic_schowdhu@quicinc.com>
> ---
> Documentation/devicetree/bindings/usb/snps,dwc3.yaml | 10 ++++++++++
> 1 file changed, 10 insertions(+)
>
> diff --git a/Documentation/devicetree/bindings/usb/snps,dwc3.yaml b/Documentation/devicetree/bindings/usb/snps,dwc3.yaml
> index d29ffcd..ccb1236 100644
> --- a/Documentation/devicetree/bindings/usb/snps,dwc3.yaml
> +++ b/Documentation/devicetree/bindings/usb/snps,dwc3.yaml
> @@ -332,6 +332,16 @@ properties:
> items:
> enum: [1, 4, 8, 16, 32, 64, 128, 256]
>
> + ports:
> + $ref: /schemas/graph.yaml#/properties/ports
> + description:
> + This port is to be attached to the endpoint of the Embedded USB Debugger.

More generally this is used together with the already documented
usb-role-switch property to connect the dwc3 to the Type-C connector.

Which makes me feel that we don't actually need ports/port, but could do
with just port? Perhaps I'm missing some usecase?


I'm somewhat confused to why this isn't already documented...

Regards,
Bjorn

> +
> + properties:
> + port@0:
> + $ref: /schemas/graph.yaml#/properties/port
> + description: Connector endpoint of Embedded USB debugger.
> +
> unevaluatedProperties: false
>
> required:
> --
> 2.7.4
>

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