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-rw-r--r--Documentation/devicetree/bindings/extcon/extcon-usb-gpio.txt3
1 files changed, 3 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/extcon/extcon-usb-gpio.txt b/Documentation/devicetree/bindings/extcon/extcon-usb-gpio.txt
index af0b903de293..dfc14f71e81f 100644
--- a/Documentation/devicetree/bindings/extcon/extcon-usb-gpio.txt
+++ b/Documentation/devicetree/bindings/extcon/extcon-usb-gpio.txt
@@ -5,7 +5,10 @@ connected to a GPIO pin.
Required properties:
- compatible: Should be "linux,extcon-usb-gpio"
+
+Either one of id-gpio or vbus-gpio must be present. Both can be present as well.
- id-gpio: gpio for USB ID pin. See gpio binding.
+- vbus-gpio: gpio for USB VBUS pin.
Example: Examples of extcon-usb-gpio node in dra7-evm.dts as listed below:
extcon_usb1 {