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>
---
Changes for v3:
- Fix the dt_binding_check error
Changes for v2:
- Add "minItems: 3" to make wakeup irq optional
Documentation/devicetree/bindings/usb/cdns,usb3.yaml | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/Documentation/devicetree/bindings/usb/cdns,usb3.yaml b/Documentation/devicetree/bindings/usb/cdns,usb3.yaml
index ac20b98e9910..b32c877dc2a8 100644
--- a/Documentation/devicetree/bindings/usb/cdns,usb3.yaml
+++ b/Documentation/devicetree/bindings/usb/cdns,usb3.yaml
@@ -26,16 +26,21 @@ properties:
- const: dev
interrupts:
+ minItems: 3
items:
- description: OTG/DRD controller interrupt
- description: XHCI host controller interrupt
- description: Device controller interrupt
+ - description: interrupt used to wake up core, e.g when usbcmd.rs is
+ cleared by xhci core, this interrupt is optional
interrupt-names:
+ minItems: 3
items:
- const: host
- const: peripheral
- const: otg
+ - const: wakeup
dr_mode:
enum: [host, otg, peripheral]
--
2.17.1
