diff --git a/Documentation/devicetree/bindings/clock/qcom,gcc.yaml b/Documentation/devicetree/bindings/clock/qcom,gcc.yaml
index d18f8ab..e533bb0 100644
--- a/Documentation/devicetree/bindings/clock/qcom,gcc.yaml
+++ b/Documentation/devicetree/bindings/clock/qcom,gcc.yaml
@@ -74,6 +74,8 @@
   - '#reset-cells'
   - '#power-domain-cells'
 
+additionalProperties: false
+
 examples:
   # Example for GCC for MSM8960:
   - |