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-rw-r--r--dts/Bindings/arm/coresight.txt9
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diff --git a/dts/Bindings/arm/coresight.txt b/dts/Bindings/arm/coresight.txt
index fcc3bacfd8..d02c42d21f 100644
--- a/dts/Bindings/arm/coresight.txt
+++ b/dts/Bindings/arm/coresight.txt
@@ -87,6 +87,15 @@ its hardware characteristcs.
* port or ports: see "Graph bindings for Coresight" below.
+* Optional properties for all components:
+
+ * arm,coresight-loses-context-with-cpu : boolean. Indicates that the
+ hardware will lose register context on CPU power down (e.g. CPUIdle).
+ An example of where this may be needed are systems which contain a
+ coresight component and CPU in the same power domain. When the CPU
+ powers down the coresight component also powers down and loses its
+ context. This property is currently only used for the ETM 4.x driver.
+
* Optional properties for ETM/PTMs:
* arm,cp14: must be present if the system accesses ETM/PTM management