diff --git a/tools/testing/selftests/tpm2/test_smoke.sh b/tools/testing/selftests/tpm2/test_smoke.sh
index 663062701d5a..1334e301d2a0 100755
--- a/tools/testing/selftests/tpm2/test_smoke.sh
+++ b/tools/testing/selftests/tpm2/test_smoke.sh
@@ -1,15 +1,10 @@
-#!/bin/bash
+#!/bin/sh
 # SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause)
 
 # Kselftest framework requirement - SKIP code is 4.
 ksft_skip=4
 
-[ -f /dev/tpm0 ] || exit $ksft_skip
+[ -e /dev/tpm0 ] || exit $ksft_skip
 
 python -m unittest -v tpm2_tests.SmokeTest
 python -m unittest -v tpm2_tests.AsyncTest
-
-CLEAR_CMD=$(which tpm2_clear)
-if [ -n $CLEAR_CMD ]; then
-	tpm2_clear -T device
-fi
diff --git a/tools/testing/selftests/tpm2/test_space.sh b/tools/testing/selftests/tpm2/test_space.sh
index 36c9d030a1c6..00259cb746cf 100755
--- a/tools/testing/selftests/tpm2/test_space.sh
+++ b/tools/testing/selftests/tpm2/test_space.sh
@@ -1,9 +1,9 @@
-#!/bin/bash
+#!/bin/sh
 # SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause)
 
 # Kselftest framework requirement - SKIP code is 4.
 ksft_skip=4
 
-[ -f /dev/tpmrm0 ] || exit $ksft_skip
+[ -e /dev/tpmrm0 ] || exit $ksft_skip
 
 python -m unittest -v tpm2_tests.SpaceTest