Add documentation on optional dt attribute "debounce-timeout-ms"
in extcon node to capture user specified timeout value for id
and vbus gpio detection.

Signed-off-by: Raveendra Padasalagi <[email protected]>
Reviewed-by: Ray Jui <[email protected]>
Reviewed-by: Srinath Mannam <[email protected]>
---
 Documentation/devicetree/bindings/extcon/extcon-usb-gpio.txt | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/Documentation/devicetree/bindings/extcon/extcon-usb-gpio.txt 
b/Documentation/devicetree/bindings/extcon/extcon-usb-gpio.txt
index dfc14f7..6df6d69 100644
--- a/Documentation/devicetree/bindings/extcon/extcon-usb-gpio.txt
+++ b/Documentation/devicetree/bindings/extcon/extcon-usb-gpio.txt
@@ -10,6 +10,10 @@ 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.
 
+Optional properties:
+- debounce-timeout-ms: debounce timeout value for id and vbus gpio in
+  milliseconds.
+
 Example: Examples of extcon-usb-gpio node in dra7-evm.dts as listed below:
        extcon_usb1 {
                compatible = "linux,extcon-usb-gpio";
-- 
1.9.1

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