diff --git a/tests/drivers/uart/uart_async_api/boards/nrf54h20dk_nrf54h20_common.dtsi b/tests/drivers/uart/uart_async_api/boards/nrf54h20dk_nrf54h20_common.dtsi
index ae810c27966..9902d733d35 100644
--- a/tests/drivers/uart/uart_async_api/boards/nrf54h20dk_nrf54h20_common.dtsi
+++ b/tests/drivers/uart/uart_async_api/boards/nrf54h20dk_nrf54h20_common.dtsi
@@ -43,6 +43,7 @@ dut: &uart137 {
 	pinctrl-1 = <&uart137_sleep_alt>;
 	pinctrl-names = "default", "sleep";
 	current-speed = <115200>;
+	zephyr,pm-device-runtime-auto;
 };
 
 dut2: &uart120 {
@@ -50,4 +51,5 @@ dut2: &uart120 {
 	pinctrl-1 = <&uart120_sleep_alt>;
 	pinctrl-names = "default", "sleep";
 	current-speed = <115200>;
+	zephyr,pm-device-runtime-auto;
 };
diff --git a/tests/drivers/uart/uart_async_api/boards/nrf54h20dk_nrf54h20_cpuapp.conf b/tests/drivers/uart/uart_async_api/boards/nrf54h20dk_nrf54h20_cpuapp.conf
new file mode 100644
index 00000000000..74cc8d7691e
--- /dev/null
+++ b/tests/drivers/uart/uart_async_api/boards/nrf54h20dk_nrf54h20_cpuapp.conf
@@ -0,0 +1,2 @@
+CONFIG_PM_DEVICE=y
+CONFIG_PM_DEVICE_RUNTIME=y