diff --git a/Documentation/devicetree/bindings/mailbox/qcom,cpucp-mbox.yaml b/Documentation/devicetree/bindings/mailbox/qcom,cpucp-mbox.yaml
index c8107d58f3d5..03359479d926 100644
--- a/Documentation/devicetree/bindings/mailbox/qcom,cpucp-mbox.yaml
+++ b/Documentation/devicetree/bindings/mailbox/qcom,cpucp-mbox.yaml
@@ -19,6 +19,7 @@ properties:
       - items:
           - enum:
               - qcom,glymur-cpucp-mbox
+              - qcom,hawi-cpucp-mbox
               - qcom,kaanapali-cpucp-mbox
               - qcom,nord-cpucp-mbox
               - qcom,sm8750-cpucp-mbox