diff --git a/Documentation/devicetree/bindings/tpm/tcg,tpm-tis-i2c.yaml b/Documentation/devicetree/bindings/tpm/tcg,tpm-tis-i2c.yaml
index 3ab4434b7352..af7720dc4a12 100644
--- a/Documentation/devicetree/bindings/tpm/tcg,tpm-tis-i2c.yaml
+++ b/Documentation/devicetree/bindings/tpm/tcg,tpm-tis-i2c.yaml
@@ -32,6 +32,7 @@ properties:
           - enum:
               - infineon,slb9673
               - nuvoton,npct75x
+              - st,st33ktpm2xi2c
           - const: tcg,tpm-tis-i2c
 
       - description: TPM 1.2 and 2.0 chips with vendor-specific I²C interface