diff --git a/bindings/arm/coresight.txt b/bindings/arm/coresight.txt
index fcc3bacfd8bc..ed4d6de2d35a 100644
--- a/bindings/arm/coresight.txt
+++ b/bindings/arm/coresight.txt
@@ -92,6 +92,9 @@ its hardware characteristcs.
 	* arm,cp14: must be present if the system accesses ETM/PTM management
 	  registers via co-processor 14.
 
+	* qcom,tupwr-disable: For ETM, don't keep trace unit powered across
+	  power collapse.
+
 * Optional property for TMC:
 
 	* arm,buffer-size: size of contiguous buffer space for TMC ETR