diff --git a/bindings/soc/qcom/qcom,tee-shared-memory-bridge.yaml b/bindings/soc/qcom/qcom,tee-shared-memory-bridge.yaml
index 0e617b851dca..1ad6dc60ee5a 100644
--- a/bindings/soc/qcom/qcom,tee-shared-memory-bridge.yaml
+++ b/bindings/soc/qcom/qcom,tee-shared-memory-bridge.yaml
@@ -18,11 +18,24 @@ properties:
     items:
       - const: qcom,tee-shared-memory-bridge
 
+  qcom,custom-bridge-size : indicates the size of SHM Bridge to be supported in multiples of 4K
+
 required:
   - compatible
 
+optional:
+  - qcom,custom-bridge-size
+
 examples:
   - |
     qtee_shmbridge {
         compatible = "qcom,tee-shared-memory-bridge";
     };
+
+    To allocate 1M memory for SHMBridge, we will have entry like this:
+
+    qtee_shmbridge {
+	compatible = "qcom,tee-shared-memory-bridge";
+	qcom,custom-bridge-size = <256>;
+    };
+