diff --git a/Documentation/devicetree/bindings/regulator/max8973-regulator.txt b/Documentation/devicetree/bindings/regulator/max8973-regulator.txt
index f80ea2fe27e693edfaa387f9dda0ae9c8e32d669..c2c68fcc1b41b21ef20dd0a671d281eea30c0763 100644
--- a/Documentation/devicetree/bindings/regulator/max8973-regulator.txt
+++ b/Documentation/devicetree/bindings/regulator/max8973-regulator.txt
@@ -32,6 +32,13 @@ Optional properties:
 
 Enhanced transient response (ETR) will affect the configuration of CKADV.
 
+-junction-warn-millicelsius: u32, junction warning temperature threshold
+		in millicelsius. If die temperature crosses this level then
+		device generates the warning interrupts.
+
+Please note that thermal functionality is only supported on MAX77621. The
+supported threshold warning temperature for MAX77621 are 120 degC and 140 degC.
+
 Example:
 
 	max8973@1b {