On Thu, Oct 22, 2020 at 09:44:11AM +0800, Peter Chen wrote: > To support low power mode for controller, the driver needs wakeup-irq > to reflect the signal changing after controller is stopped, and waking > the controller up accordingly. > > Signed-off-by: Peter Chen <peter.chen@xxxxxxx> > --- > Documentation/devicetree/bindings/usb/cdns,usb3.yaml | 3 +++ > 1 file changed, 3 insertions(+) > > diff --git a/Documentation/devicetree/bindings/usb/cdns,usb3.yaml b/Documentation/devicetree/bindings/usb/cdns,usb3.yaml > index ac20b98e9910..0171e64ef95e 100644 > --- a/Documentation/devicetree/bindings/usb/cdns,usb3.yaml > +++ b/Documentation/devicetree/bindings/usb/cdns,usb3.yaml > @@ -30,12 +30,15 @@ properties: > - description: OTG/DRD controller interrupt > - description: XHCI host controller interrupt > - description: Device controller interrupt > + - description: interrupt used to wake up core, eg: when usbcmd.rs is > + cleared by xhci core, this interrupt is optional. You need 'minItems: 3' here and below to make this optional. I guess we don't have an example for this binding or it would fail. > > interrupt-names: > items: > - const: host > - const: peripheral > - const: otg > + - const: wakeup > > dr_mode: > enum: [host, otg, peripheral] > -- > 2.17.1 >
