diff --git a/bindings/firmware/qcom,scm.txt b/bindings/firmware/qcom,scm.txt
index 89cb3942..19a5aacd 100644
--- a/bindings/firmware/qcom,scm.txt
+++ b/bindings/firmware/qcom,scm.txt
@@ -29,6 +29,7 @@ Required properties:
  * "qcom,scm-sm8350"
  and:
  * "qcom,scm"
+ * "qcom,scm-v1.1" for firmwares that support waitqueue-based operation.
  * "android,firmware" for firmware image
  * "android,vbmeta" for setting system properties for verified boot.
 - clocks: Specifies clocks needed by the SCM interface, if any: