On Wed, Apr 24, 2019 at 10:22:18AM +0100, Biju Das wrote:
> Add an optional property renesas,usb-role-switch to support
> dual role switch for USB Type-C DRP port controller devices
> using USB role switch class framework.
> 
> Signed-off-by: Biju Das <[email protected]>
> ---
>  V4-->V5
>   * No Change
>  V3-->V4
>   * No Change
>  V2-->V3
>   * Added optional renesas,usb-role-switch property.
>  V1-->V2
>   * Added usb-role-switch-property
>   * Updated the example with usb-role-switch property.
> ---
>  .../devicetree/bindings/usb/renesas_usb3.txt       | 22 
> ++++++++++++++++++++++
>  1 file changed, 22 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/usb/renesas_usb3.txt 
> b/Documentation/devicetree/bindings/usb/renesas_usb3.txt
> index 35039e7..f1cb06a 100644
> --- a/Documentation/devicetree/bindings/usb/renesas_usb3.txt
> +++ b/Documentation/devicetree/bindings/usb/renesas_usb3.txt
> @@ -22,6 +22,7 @@ Required properties:
>  Optional properties:
>    - phys: phandle + phy specifier pair
>    - phy-names: must be "usb"
> +  - renesas,usb-role-switch: use USB role switch to handle role switch events

Mediatek and HiSilicon both have same or similar properties in patches 
under review. Please coordinate and document a common property.

Really, I'm wondering why this is needed. Can't you walk the graph to 
the connector and determine if dual role is supported by the connector 
type?

Rob

Reply via email to