tests: drivers: audio: pdm_loopback: Run on nRF54LM20A

Enable test execution on nrf54lm20a.

Signed-off-by: Sebastian Głąb <[email protected]>

Author: nordic-segl

dts/common/nordic/nrf54lm20a.dtsi

@@ -65,6 +65,12 @@
 			#clock-cells = <0>;
 			clock-frequency = <DT_FREQ_M(128)>;
 		};
+
+		aclk: aclk {
+			compatible = "nordic,nrf-aclk";
+			#clock-cells = <0>;
+			clock-frequency = <DT_FREQ_M(24)>;
+		};
 	};
 
 	soc {

tests/drivers/audio/pdm_loopback/boards/nrf54l_aclk.overlay

@@ -0,0 +1,9 @@
+/*
+ * Copyright (c) 2025 Nordic Semiconductor ASA
+ *
+ * SPDX-License-Identifier: LicenseRef-Nordic-5-Clause
+ */
+
+&pdm_dev {
+	clock-source = "ACLK";
+};

tests/drivers/audio/pdm_loopback/boards/nrf54l20pdk_nrf54l20_cpuapp_aclk.overlay renamed to tests/drivers/audio/pdm_loopback/boards/nrf54lm20apdk_nrf54lm20a_cpuapp.overlay

@@ -26,7 +26,7 @@ pdm_dev: &pdm20 {
 	status = "okay";
 	pinctrl-0 = <&pdm20_default_alt>;
 	pinctrl-names = "default";
-	clock-source = "ACLK";
+	clock-source = "PCLK32M";
 };
 
 &gpio1 {

tests/drivers/audio/pdm_loopback/testcase.yaml

@@ -12,17 +12,20 @@ tests:
     platform_allow:
       - nrf54l15dk/nrf54l15/cpuapp
       - nrf54l20pdk/nrf54l20/cpuapp
+      - nrf54lm20apdk/nrf54lm20a/cpuapp
     extra_args: CONFIG_NRFX_TIMER00=y
   drivers.audio.pdm_loopback.nrf54l20.1000khz:
     platform_allow:
       - nrf54l20pdk/nrf54l20/cpuapp
+      - nrf54lm20apdk/nrf54lm20a/cpuapp
     extra_args:
       - CONFIG_NRFX_TIMER00=y
       - CONFIG_TEST_PDM_SAMPLING_RATE=20000
   drivers.audio.pdm_loopback.nrf54l.1280khz:
     platform_allow:
       - nrf54l15dk/nrf54l15/cpuapp
       - nrf54l20pdk/nrf54l20/cpuapp
+      - nrf54lm20apdk/nrf54lm20a/cpuapp
     extra_args:
       - CONFIG_NRFX_TIMER00=y
       - CONFIG_TEST_PDM_SAMPLING_RATE=16000
@@ -31,33 +34,37 @@ tests:
     platform_allow:
       - nrf54l15dk/nrf54l15/cpuapp
       - nrf54l20pdk/nrf54l20/cpuapp
+      - nrf54lm20apdk/nrf54lm20a/cpuapp
     extra_args:
       - CONFIG_NRFX_TIMER00=y
       - CONFIG_TEST_PDM_SAMPLING_RATE=32000
       - CONFIG_TEST_PDM_EXPECTED_FREQUENCY=1600000
   drivers.audio.pdm_loopback.nrf54l20.aclk.1000khz:
     platform_allow:
       - nrf54l20pdk/nrf54l20/cpuapp
+      - nrf54lm20apdk/nrf54lm20a/cpuapp
     extra_args:
       - CONFIG_NRFX_TIMER00=y
       - CONFIG_TEST_PDM_SAMPLING_RATE=20000
-      - DTC_OVERLAY_FILE="boards/nrf54l20pdk_nrf54l20_cpuapp_aclk.overlay"
+      - EXTRA_DTC_OVERLAY_FILE="boards/nrf54l_aclk.overlay"
   drivers.audio.pdm_loopback.nrf54l20.aclk.1280khz:
     platform_allow:
       - nrf54l20pdk/nrf54l20/cpuapp
+      - nrf54lm20apdk/nrf54lm20a/cpuapp
     extra_args:
       - CONFIG_NRFX_TIMER00=y
       - CONFIG_TEST_PDM_SAMPLING_RATE=16000
       - CONFIG_TEST_PDM_EXPECTED_FREQUENCY=1280000
-      - DTC_OVERLAY_FILE="boards/nrf54l20pdk_nrf54l20_cpuapp_aclk.overlay"
+      - EXTRA_DTC_OVERLAY_FILE="boards/nrf54l_aclk.overlay"
   drivers.audio.pdm_loopback.nrf54l20.aclk.1600khz:
     platform_allow:
       - nrf54l20pdk/nrf54l20/cpuapp
+      - nrf54lm20apdk/nrf54lm20a/cpuapp
     extra_args:
       - CONFIG_NRFX_TIMER00=y
       - CONFIG_TEST_PDM_SAMPLING_RATE=32000
       - CONFIG_TEST_PDM_EXPECTED_FREQUENCY=1600000
-      - DTC_OVERLAY_FILE="boards/nrf54l20pdk_nrf54l20_cpuapp_aclk.overlay"
+      - EXTRA_DTC_OVERLAY_FILE="boards/nrf54l_aclk.overlay"
   drivers.audio.pdm_loopback.nrf54h20.1000khz:
     platform_allow:
       - nrf54h20dk/nrf54h20/cpuapp