diff --git a/doc/device-tree-bindings/tpm2/sandbox.txt b/doc/device-tree-bindings/tpm2/sandbox.txt
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+Sandbox TPMv2.0 bindings
+------------------------
+
+Required properties:
+- compatible		: Should be "sandbox,tpm2"
+
+Example:
+
+	tpm {
+ 		compatible = "sandbox,tpm2";
+	};