1 files changed, 5 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/iio/proximity/as3935.txt b/Documentation/devicetree/bindings/iio/proximity/as3935.txt
index 38d74314b7ab..b6c1afa6f02d 100644
--- a/Documentation/devicetree/bindings/iio/proximity/as3935.txt
+++ b/Documentation/devicetree/bindings/iio/proximity/as3935.txt
@@ -16,6 +16,10 @@ Optional properties:
 	- ams,tuning-capacitor-pf: Calibration tuning capacitor stepping
 	  value 0 - 120pF. This will require using the calibration data from
 	  the manufacturer.
+	- ams,nflwdth: Set the noise and watchdog threshold register on
+	  startup. This will need to set according to the noise from the
+	  MCU board, and possibly the local environment. Refer to the
+	  datasheet for the threshold settings.
 
 Example:
 
@@ -27,4 +31,5 @@ as3935@0 {
 	interrupt-parent = <&gpio1>;
 	interrupts = <16 1>;
 	ams,tuning-capacitor-pf = <80>;
+	ams,nflwdth = <0x44>;
 };