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-rw-r--r--Documentation/devicetree/bindings/usb/usb-xhci.txt5
1 files changed, 4 insertions, 1 deletions
diff --git a/Documentation/devicetree/bindings/usb/usb-xhci.txt b/Documentation/devicetree/bindings/usb/usb-xhci.txt
index c4c00dff4b56..bd1dd316fb23 100644
--- a/Documentation/devicetree/bindings/usb/usb-xhci.txt
+++ b/Documentation/devicetree/bindings/usb/usb-xhci.txt
@@ -28,7 +28,10 @@ Required properties:
- interrupts: one XHCI interrupt should be described here.
Optional properties:
- - clocks: reference to a clock
+ - clocks: reference to the clocks
+ - clock-names: mandatory if there is a second clock, in this case
+ the name must be "core" for the first clock and "reg" for the
+ second one
- usb2-lpm-disable: indicate if we don't want to enable USB2 HW LPM
- usb3-lpm-capable: determines if platform is USB3 LPM capable
- quirk-broken-port-ped: set if the controller has broken port disable mechanism