diff --git a/tests/scripts/components-configuration-crypto.sh b/tests/scripts/components-configuration-crypto.sh
index 07b6fa5..0ccb2ce 100644
--- a/tests/scripts/components-configuration-crypto.sh
+++ b/tests/scripts/components-configuration-crypto.sh
@@ -2671,6 +2671,15 @@
 }
 
 component_test_psa_crypto_drivers () {
+    # Test dispatch to drivers and fallbacks with
+    # test_suite_psa_crypto_driver_wrappers test suite. The test drivers that
+    # are wrappers around the builtin drivers are activated by
+    # PSA_CRYPTO_DRIVER_TEST.
+    #
+    # For the time being, some test cases in test_suite_block_cipher and
+    # test_suite_md.psa rely on this component to be run at least once by the
+    # CI. This should disappear as we progress the 4.x work. See
+    # config_adjust_test_accelerators.h for more information.
     msg "build: full + test drivers dispatching to builtins"
     scripts/config.py full
     loc_cflags="$ASAN_CFLAGS -DPSA_CRYPTO_DRIVER_TEST -DMBEDTLS_CONFIG_ADJUST_TEST_ACCELERATORS"