diff --git a/checkpatch/checkpatch.conf b/checkpatch/checkpatch.conf
index d782cfc..ca761f5 100644
--- a/checkpatch/checkpatch.conf
+++ b/checkpatch/checkpatch.conf
@@ -27,3 +27,4 @@
 --ignore PREFER_ALIGNED
 --ignore PREFER_SECTION
 --show-types
+--typedefsfile TFM_TYPE_DEF_FILE
diff --git a/checkpatch/tfm_type_defs.txt b/checkpatch/tfm_type_defs.txt
new file mode 100644
index 0000000..3a7bfa4
--- /dev/null
+++ b/checkpatch/tfm_type_defs.txt
@@ -0,0 +1,9 @@
+#-------------------------------------------------------------------------------
+# Copyright (c) 2021, Arm Limited and Contributors. All rights reserved.
+#
+# SPDX-License-Identifier: BSD-3-Clause
+#
+#-------------------------------------------------------------------------------
+
+psa_invec
+psa_outvec