Re: [PATCH v2 1/8] dt-bindings: connector: usb-connector: add a gpio used to determine the Type-C port plug orientation

From: Rob Herring
Date: Thu Jun 08 2023 - 11:49:35 EST


On Wed, Jun 07, 2023 at 10:05:00AM +0200, Neil Armstrong wrote:
> On some platforms, the Type-C plug orientation is given on a GPIO line.
>
> Document this optional Type-C connector property, and take the
> assumption an active level represents an inverted/flipped orientation.
>
> Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxx>
> Signed-off-by: Neil Armstrong <neil.armstrong@xxxxxxxxxx>
> ---
> Documentation/devicetree/bindings/connector/usb-connector.yaml | 5 +++++
> 1 file changed, 5 insertions(+)
>
> diff --git a/Documentation/devicetree/bindings/connector/usb-connector.yaml b/Documentation/devicetree/bindings/connector/usb-connector.yaml
> index ae515651fc6b..c3884eed6ba4 100644
> --- a/Documentation/devicetree/bindings/connector/usb-connector.yaml
> +++ b/Documentation/devicetree/bindings/connector/usb-connector.yaml
> @@ -114,6 +114,11 @@ properties:
> description: Set this property if the Type-C connector has no power delivery support.
> type: boolean
>
> + orientation-gpios:
> + description: An input gpio for Type-C connector orientation, used to detect orientation
> + of the Type-C connector. GPIO active level means "CC2" or Reversed/Flipped orientation.
> + maxItems: 1

There's no such GPIO on a USB-C connector. Please explain this h/w
better (in the commit message and/or description). Perhaps it is simple
enough logic to leave the GPIO here. Perhaps there's more to the h/w you
are not (yet) describing.

Rob