On Wed, May 08, 2019 at 05:17:44PM +0800, Chunfeng Yun wrote: > Add a property usb-role-switch to tell the driver that use > USB Role Switch framework to handle the role switch, > it's useful when the driver has already supported other ways, > such as extcon framework etc. > > Cc: Biju Das <biju.das@xxxxxxxxxxxxxx> > Cc: Yu Chen <chenyu56@xxxxxxxxxx> > Signed-off-by: Chunfeng Yun <chunfeng.yun@xxxxxxxxxxxx> Who is meant to pick this? Can you include this in your series where you introduce that USB Type-B GPIO connector driver? FWIW: Reviewed-by: Heikki Krogerus <heikki.krogerus@xxxxxxxxxxxxxxx> > --- > v3: > add property type, modify description suggested by Heikki > > v2: > describe it in terms of h/w functionality suggested by Rob > > v1: > the property is discussed in: > [v2,2/7] dt-bindings: usb: renesas_usb3: add usb-role-switch property > https://patchwork.kernel.org/patch/10852497/ > > Mediatek and Hisilicon also try to use it: > [v4,3/6] dt-bindings: usb: mtu3: add properties about USB Role Switch > https://patchwork.kernel.org/patch/10918385/ > [v4,6/6] usb: mtu3: register a USB Role Switch for dual role mode > https://patchwork.kernel.org/patch/10918367/ > > [v6,10/13] usb: dwc3: Registering a role switch in the DRD code > https://patchwork.kernel.org/patch/10909981/ > --- > Documentation/devicetree/bindings/usb/generic.txt | 4 ++++ > 1 file changed, 4 insertions(+) > > diff --git a/Documentation/devicetree/bindings/usb/generic.txt b/Documentation/devicetree/bindings/usb/generic.txt > index 0a74ab8dfdc2..cf5a1ad456e6 100644 > --- a/Documentation/devicetree/bindings/usb/generic.txt > +++ b/Documentation/devicetree/bindings/usb/generic.txt > @@ -30,6 +30,10 @@ Optional properties: > optional for OTG device. > - adp-disable: tells OTG controllers we want to disable OTG ADP, ADP is > optional for OTG device. > + - usb-role-switch: boolean, indicates that the device is capable of assigning > + the USB data role (USB host or USB device) for a given > + USB connector, such as Type-C, Type-B(micro). > + see connector/usb-connector.txt. > > This is an attribute to a USB controller such as: > > -- > 2.21.0 thanks, -- heikki
