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.
interrupt-names:
items:
- const: host
- const: peripheral
- const: otg
+ - const: wakeup
dr_mode:
enum: [host, otg, peripheral]
--
2.17.1
