diff --git a/tests/drivers/pwm/pwm_api/prj.conf b/tests/drivers/pwm/pwm_api/prj.conf
index 21d92de3cb47f..7375a2bd0b432 100644
--- a/tests/drivers/pwm/pwm_api/prj.conf
+++ b/tests/drivers/pwm/pwm_api/prj.conf
@@ -1,3 +1,4 @@
 CONFIG_PWM=y
 CONFIG_ZTEST=y
+CONFIG_ZTEST_NEW_API=y
 CONFIG_TEST_USERSPACE=y
diff --git a/tests/drivers/pwm/pwm_api/src/main.c b/tests/drivers/pwm/pwm_api/src/main.c
index 4d56ffae3da9b..65d085417cc5e 100644
--- a/tests/drivers/pwm/pwm_api/src/main.c
+++ b/tests/drivers/pwm/pwm_api/src/main.c
@@ -10,18 +10,15 @@
 #include <zephyr/device.h>
 
 const struct device *get_pwm_device(void);
-void test_pwm_cycle(void);
-void test_pwm_nsec(void);
 
-void test_main(void)
+static void *pwm_basic_setup(void)
 {
 	const struct device *dev = get_pwm_device();
 
 	zassert_true(device_is_ready(dev), "PWM device is not ready");
 	k_object_access_grant(dev, k_current_get());
 
-	ztest_test_suite(pwm_basic_test,
-			 ztest_user_unit_test(test_pwm_nsec),
-			 ztest_user_unit_test(test_pwm_cycle));
-	ztest_run_test_suite(pwm_basic_test);
+	return NULL;
 }
+
+ZTEST_SUITE(pwm_basic, NULL, pwm_basic_setup, NULL, NULL, NULL);
diff --git a/tests/drivers/pwm/pwm_api/src/test_pwm.c b/tests/drivers/pwm/pwm_api/src/test_pwm.c
index 23027752e1e68..8039caa6ea3e8 100644
--- a/tests/drivers/pwm/pwm_api/src/test_pwm.c
+++ b/tests/drivers/pwm/pwm_api/src/test_pwm.c
@@ -126,7 +126,7 @@ static int test_task(uint32_t port, uint32_t period, uint32_t pulse, uint8_t uni
 	return TC_PASS;
 }
 
-void test_pwm_nsec(void)
+ZTEST_USER(pwm_basic, test_pwm_nsec)
 {
 	/* Period : Pulse (2000000 : 1000000), unit (nsec). Voltage : 1.65V */
 	zassert_true(test_task(DEFAULT_PWM_PORT, DEFAULT_PERIOD_NSEC,
@@ -144,7 +144,7 @@ void test_pwm_nsec(void)
 	k_sleep(K_MSEC(1000));
 }
 
-void test_pwm_cycle(void)
+ZTEST_USER(pwm_basic, test_pwm_cycle)
 {
 	/* Period : Pulse (64000 : 32000), unit (cycle). Voltage : 1.65V */
 	zassert_true(test_task(DEFAULT_PWM_PORT, DEFAULT_PERIOD_CYCLE,
diff --git a/tests/drivers/pwm/pwm_loopback/prj.conf b/tests/drivers/pwm/pwm_loopback/prj.conf
index 73f7ae3cd455b..3d01d55ecb817 100644
--- a/tests/drivers/pwm/pwm_loopback/prj.conf
+++ b/tests/drivers/pwm/pwm_loopback/prj.conf
@@ -1,4 +1,5 @@
 CONFIG_ZTEST=y
+CONFIG_ZTEST_NEW_API=y
 CONFIG_TEST_USERSPACE=y
 
 CONFIG_PWM=y
diff --git a/tests/drivers/pwm/pwm_loopback/src/main.c b/tests/drivers/pwm/pwm_loopback/src/main.c
index 149b9bc0b9a1a..e3ccec475633e 100644
--- a/tests/drivers/pwm/pwm_loopback/src/main.c
+++ b/tests/drivers/pwm/pwm_loopback/src/main.c
@@ -9,7 +9,7 @@
 
 #include "test_pwm_loopback.h"
 
-void test_main(void)
+static void *pwm_loopback_setup(void)
 {
 	struct test_pwm in;
 	struct test_pwm out;
@@ -19,14 +19,7 @@ void test_main(void)
 	k_object_access_grant(out.dev, k_current_get());
 	k_object_access_grant(in.dev, k_current_get());
 
-	ztest_test_suite(pwm_loopback_test,
-			 ztest_user_unit_test(test_pulse_capture),
-			 ztest_user_unit_test(test_pulse_capture_inverted),
-			 ztest_user_unit_test(test_period_capture),
-			 ztest_user_unit_test(test_period_capture_inverted),
-			 ztest_user_unit_test(test_pulse_and_period_capture),
-			 ztest_user_unit_test(test_capture_timeout),
-			 ztest_unit_test(test_continuous_capture),
-			 ztest_unit_test(test_capture_busy));
-	ztest_run_test_suite(pwm_loopback_test);
+	return NULL;
 }
+
+ZTEST_SUITE(pwm_loopback, NULL, pwm_loopback_setup, NULL, NULL, NULL);
diff --git a/tests/drivers/pwm/pwm_loopback/src/test_pwm_loopback.c b/tests/drivers/pwm/pwm_loopback/src/test_pwm_loopback.c
index 6d2c226021bea..42aed09141894 100644
--- a/tests/drivers/pwm/pwm_loopback/src/test_pwm_loopback.c
+++ b/tests/drivers/pwm/pwm_loopback/src/test_pwm_loopback.c
@@ -35,7 +35,7 @@ void get_test_pwms(struct test_pwm *out, struct test_pwm *in)
 	zassert_true(device_is_ready(in->dev), "pwm loopback input device is not ready");
 }
 
-void test_capture(uint32_t period, uint32_t pulse, enum test_pwm_unit unit,
+static void test_capture(uint32_t period, uint32_t pulse, enum test_pwm_unit unit,
 		  pwm_flags_t flags)
 {
 	struct test_pwm in;
@@ -103,7 +103,7 @@ void test_capture(uint32_t period, uint32_t pulse, enum test_pwm_unit unit,
 	}
 }
 
-void test_pulse_capture(void)
+ZTEST_USER(pwm_loopback, test_pulse_capture)
 {
 	test_capture(TEST_PWM_PERIOD_NSEC, TEST_PWM_PULSE_NSEC,
 		     TEST_PWM_UNIT_NSEC,
@@ -113,7 +113,7 @@ void test_pulse_capture(void)
 		     PWM_CAPTURE_TYPE_PULSE | PWM_POLARITY_NORMAL);
 }
 
-void test_pulse_capture_inverted(void)
+ZTEST_USER(pwm_loopback, test_pulse_capture_inverted)
 {
 	test_capture(TEST_PWM_PERIOD_NSEC, TEST_PWM_PULSE_NSEC,
 		     TEST_PWM_UNIT_NSEC,
@@ -123,7 +123,7 @@ void test_pulse_capture_inverted(void)
 		     PWM_CAPTURE_TYPE_PULSE | PWM_POLARITY_INVERTED);
 }
 
-void test_period_capture(void)
+ZTEST_USER(pwm_loopback, test_period_capture)
 {
 	test_capture(TEST_PWM_PERIOD_NSEC, TEST_PWM_PULSE_NSEC,
 		     TEST_PWM_UNIT_NSEC,
@@ -133,7 +133,7 @@ void test_period_capture(void)
 		     PWM_CAPTURE_TYPE_PERIOD | PWM_POLARITY_NORMAL);
 }
 
-void test_period_capture_inverted(void)
+ZTEST_USER(pwm_loopback, test_period_capture_inverted)
 {
 	test_capture(TEST_PWM_PERIOD_NSEC, TEST_PWM_PULSE_NSEC,
 		     TEST_PWM_UNIT_NSEC,
@@ -143,7 +143,7 @@ void test_period_capture_inverted(void)
 		     PWM_CAPTURE_TYPE_PERIOD | PWM_POLARITY_INVERTED);
 }
 
-void test_pulse_and_period_capture(void)
+ZTEST_USER(pwm_loopback, test_pulse_and_period_capture)
 {
 	test_capture(TEST_PWM_PERIOD_NSEC, TEST_PWM_PULSE_NSEC,
 		     TEST_PWM_UNIT_NSEC,
@@ -153,7 +153,7 @@ void test_pulse_and_period_capture(void)
 		     PWM_CAPTURE_TYPE_BOTH | PWM_POLARITY_NORMAL);
 }
 
-void test_capture_timeout(void)
+ZTEST_USER(pwm_loopback, test_capture_timeout)
 {
 	struct test_pwm in;
 	struct test_pwm out;
@@ -212,7 +212,7 @@ static void continuous_capture_callback(const struct device *dev,
 	}
 }
 
-void test_continuous_capture(void)
+ZTEST(pwm_loopback, test_continuous_capture)
 {
 	struct test_pwm in;
 	struct test_pwm out;
@@ -278,7 +278,7 @@ void test_continuous_capture(void)
 	}
 }
 
-void test_capture_busy(void)
+ZTEST(pwm_loopback, test_capture_busy)
 {
 	struct test_pwm in;
 	struct test_pwm out;
diff --git a/tests/drivers/pwm/pwm_loopback/src/test_pwm_loopback.h b/tests/drivers/pwm/pwm_loopback/src/test_pwm_loopback.h
index 062f953b6f20e..adab339cb10cc 100644
--- a/tests/drivers/pwm/pwm_loopback/src/test_pwm_loopback.h
+++ b/tests/drivers/pwm/pwm_loopback/src/test_pwm_loopback.h
@@ -47,20 +47,4 @@ struct test_pwm_callback_data {
 
 void get_test_pwms(struct test_pwm *out, struct test_pwm *in);
 
-void test_pulse_capture(void);
-
-void test_pulse_capture_inverted(void);
-
-void test_period_capture(void);
-
-void test_period_capture_inverted(void);
-
-void test_pulse_and_period_capture(void);
-
-void test_capture_timeout(void);
-
-void test_continuous_capture(void);
-
-void test_capture_busy(void);
-
 #endif /* __TEST_PWM_LOOPBACK_H__ */