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-rw-r--r--Documentation/devicetree/bindings/usb/usb3503.txt3
1 files changed, 2 insertions, 1 deletions
diff --git a/Documentation/devicetree/bindings/usb/usb3503.txt b/Documentation/devicetree/bindings/usb/usb3503.txt
index 44a03f338424..a018da4a7ad7 100644
--- a/Documentation/devicetree/bindings/usb/usb3503.txt
+++ b/Documentation/devicetree/bindings/usb/usb3503.txt
@@ -2,9 +2,10 @@ SMSC USB3503 High-Speed Hub Controller
Required properties:
- compatible: Should be "smsc,usb3503" or "smsc,usb3503a".
-- reg: Specifies the i2c slave address, it should be 0x08.
Optional properties:
+- reg: Specifies the i2c slave address, it is required and should be 0x08
+ if I2C is used.
- connect-gpios: Should specify GPIO for connect.
- disabled-ports: Should specify the ports unused.
'1' or '2' or '3' are availe for this property to describe the port