diff --git a/Documentation/devicetree/bindings/arm/cpus.yaml b/Documentation/devicetree/bindings/arm/cpus.yaml
index 5c13b73e4d57..e7847aa6ac01 100644
--- a/Documentation/devicetree/bindings/arm/cpus.yaml
+++ b/Documentation/devicetree/bindings/arm/cpus.yaml
@@ -296,7 +296,9 @@ properties:
       power-domains property.
 
       For PSCI based platforms, the name corresponding to the index of the PSCI
-      PM domain provider, must be "psci".
+      PM domain provider, must be "psci". For SCMI based platforms, the name
+      corresponding to the index of an SCMI performance domain provider, must be
+      "perf".
 
   qcom,saw:
     $ref: '/schemas/types.yaml#/definitions/phandle'