diff --git a/SecurityPkg/Tcg/Tcg2Smm/Tcg2Smm.c b/SecurityPkg/Tcg/Tcg2Smm/Tcg2Smm.c
index b4974755b2..1c2d8ba389 100644
--- a/SecurityPkg/Tcg/Tcg2Smm/Tcg2Smm.c
+++ b/SecurityPkg/Tcg/Tcg2Smm/Tcg2Smm.c
@@ -50,18 +50,27 @@ GetPtpInterface (
   InterfaceId.Uint32 = MmioRead32 ((UINTN)&((PTP_CRB_REGISTERS *)Register)->InterfaceId);
   InterfaceCapability.Uint32 = MmioRead32 ((UINTN)&((PTP_FIFO_REGISTERS *)Register)->InterfaceCapability);
 
+  if (InterfaceId.Bits.InterfaceType == PTP_INTERFACE_IDENTIFIER_INTERFACE_TYPE_TIS) {
+    return PtpInterfaceTis;
+  }
+
   if ((InterfaceId.Bits.InterfaceType == PTP_INTERFACE_IDENTIFIER_INTERFACE_TYPE_CRB) &&
       (InterfaceId.Bits.InterfaceVersion == PTP_INTERFACE_IDENTIFIER_INTERFACE_VERSION_CRB) &&
       (InterfaceId.Bits.CapCRB != 0)) {
     return PtpInterfaceCrb;
   }
+
   if ((InterfaceId.Bits.InterfaceType == PTP_INTERFACE_IDENTIFIER_INTERFACE_TYPE_FIFO) &&
       (InterfaceId.Bits.InterfaceVersion == PTP_INTERFACE_IDENTIFIER_INTERFACE_VERSION_FIFO) &&
       (InterfaceId.Bits.CapFIFO != 0) &&
       (InterfaceCapability.Bits.InterfaceVersion == INTERFACE_CAPABILITY_INTERFACE_VERSION_PTP)) {
     return PtpInterfaceFifo;
   }
-  return PtpInterfaceTis;
+
+  //
+  // No Ptp interface available
+  //
+  return PtpInterfaceMax;
 }
 
 EFI_TPM2_ACPI_TABLE  mTpm2AcpiTemplate = {
@@ -400,6 +409,7 @@ PublishTpm2 (
   case PtpInterfaceTis:
     break;
   default:
+    DEBUG((EFI_D_ERROR, "TPM2 InterfaceType get error! %d\n", InterfaceType));
     break;
   }