diff --git a/samples/tfm_integration/psa_level_1/boards/stm32l562e_dk_ns.overlay b/samples/tfm_integration/psa_level_1/boards/stm32l562e_dk_ns.overlay
index c90a1d0b9e6..eb345ff5dff 100644
--- a/samples/tfm_integration/psa_level_1/boards/stm32l562e_dk_ns.overlay
+++ b/samples/tfm_integration/psa_level_1/boards/stm32l562e_dk_ns.overlay
@@ -5,7 +5,11 @@
  */
 
  /* This partition table should be used along with TFM configuration:
-  * - TFM_PSA_API=ON (IPC)
+  * - TEST_S=OFF (NO REGRESSION)
+  *
+  * In this configuration, TFM binary does not include tests.
+  * The partition sizes are compatible with the TF-M platform
+  * flash_layout.h.
   */
 
 / {
diff --git a/samples/tfm_integration/tfm_ipc/boards/stm32l562e_dk_ns.overlay b/samples/tfm_integration/tfm_ipc/boards/stm32l562e_dk_ns.overlay
index 7928420cde5..3e097996d56 100644
--- a/samples/tfm_integration/tfm_ipc/boards/stm32l562e_dk_ns.overlay
+++ b/samples/tfm_integration/tfm_ipc/boards/stm32l562e_dk_ns.overlay
@@ -5,14 +5,12 @@
  */
 
  /* This partition table should be used along with TFM configuration:
+  * - TEST_S=OFF (NO REGRESSION)
   * - TFM_PSA_API=ON (IPC)
-  * - ISOLATION_LEVEL 2
-  * - TEST_S=ON (REGRESSION)
-  * - TEST_NS=OFF (By default)
   *
-  * In this configuration, TFM binary includes tests. As a consequence,
-  * its size is bloated and it is not possible to set secondary partitions
-  * for secured or non secured images.
+  * In this configuration, TFM binary does not include tests.
+  * The partition sizes are compatible with the TF-M platform
+  * flash_layout.h.
   */
 
 / {