tests: zephyr: drivers: i2s: Run I2S tests on nRF54LM20A

Enable test execution on nRF54LM20A.

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

Author: nordic-segl

tests/zephyr/drivers/i2s/i2s_api/boards/nrf54lm20apdk_nrf54lm20a_cpuapp.overlay

@@ -0,0 +1,30 @@
+/*
+ * Copyright (c) 2025 Nordic Semiconductor ASA
+ *
+ * SPDX-License-Identifier: LicenseRef-Nordic-5-Clause
+ */
+
+/* i2s-node0 is the transmitter/receiver */
+
+/ {
+	aliases {
+		i2s-node0 = &tdm;
+	};
+};
+
+&pinctrl {
+	tdm_default_alt: tdm_default_alt {
+		group1 {
+			psels = <NRF_PSEL(TDM_SCK_M, 1, 3)>,
+				<NRF_PSEL(TDM_FSYNC_M, 1, 6)>,
+				<NRF_PSEL(TDM_SDOUT, 1, 14)>,
+				<NRF_PSEL(TDM_SDIN, 1, 15)>;
+		};
+	};
+};
+
+&tdm {
+	status = "okay";
+	pinctrl-0 = <&tdm_default_alt>;
+	pinctrl-names = "default";
+};

tests/zephyr/drivers/i2s/i2s_api/testcase.yaml

@@ -1,14 +1,24 @@
+common:
+  tags:
+    - drivers
+    - i2s
+    - ci_tests_zephyr_drivers_i2s
+  filter: CONFIG_I2S_TEST_USE_GPIO_LOOPBACK
+  harness: ztest
+
 tests:
-  nrf.extended.drivers.i2s.i2s_api.gpio_loopback:
-    tags:
-      - drivers
-      - i2s
-      - ci_tests_zephyr_drivers_i2s
-    filter: CONFIG_I2S_TEST_USE_GPIO_LOOPBACK
-    harness: ztest
+  nrf.extended.drivers.i2s.i2s_api.gpio_loopback.54h:
     harness_config:
       fixture: i2s_loopback
     platform_allow:
       - nrf54h20dk/nrf54h20/cpuapp
     integration_platforms:
       - nrf54h20dk/nrf54h20/cpuapp
+
+  nrf.extended.drivers.i2s_api.gpio_loopback.54l:
+    harness_config:
+      fixture: gpio_loopback
+    platform_allow:
+      - nrf54lm20apdk/nrf54lm20a/cpuapp
+    integration_platforms:
+      - nrf54lm20apdk/nrf54lm20a/cpuapp

tests/zephyr/drivers/i2s/i2s_speed/boards/nrf54lm20apdk_nrf54lm20a_cpuapp.overlay

@@ -0,0 +1,30 @@
+/*
+ * Copyright (c) 2025 Nordic Semiconductor ASA
+ *
+ * SPDX-License-Identifier: LicenseRef-Nordic-5-Clause
+ */
+
+/* i2s-node0 is the transmitter/receiver */
+
+/ {
+	aliases {
+		i2s-node0 = &tdm;
+	};
+};
+
+&pinctrl {
+	tdm_default_alt: tdm_default_alt {
+		group1 {
+			psels = <NRF_PSEL(TDM_SCK_M, 1, 3)>,
+				<NRF_PSEL(TDM_FSYNC_M, 1, 6)>,
+				<NRF_PSEL(TDM_SDOUT, 1, 14)>,
+				<NRF_PSEL(TDM_SDIN, 1, 15)>;
+		};
+	};
+};
+
+&tdm {
+	status = "okay";
+	pinctrl-0 = <&tdm_default_alt>;
+	pinctrl-names = "default";
+};

tests/zephyr/drivers/i2s/i2s_speed/testcase.yaml

@@ -1,14 +1,24 @@
+common:
+  tags:
+    - drivers
+    - i2s
+    - ci_tests_zephyr_drivers_i2s
+  filter: CONFIG_I2S_TEST_USE_GPIO_LOOPBACK
+  harness: ztest
+
 tests:
-  nrf.extended.drivers.i2s.i2s_speed.gpio_loopback:
-    tags:
-      - drivers
-      - i2s
-      - ci_tests_zephyr_drivers_i2s
-    filter: CONFIG_I2S_TEST_USE_GPIO_LOOPBACK
-    harness: ztest
+  nrf.extended.drivers.i2s.i2s_speed.gpio_loopback.54h:
     harness_config:
       fixture: i2s_loopback
     platform_allow:
       - nrf54h20dk/nrf54h20/cpuapp
     integration_platforms:
       - nrf54h20dk/nrf54h20/cpuapp
+
+  nrf.extended.drivers.i2s.i2s_speed.gpio_loopback.54l:
+    harness_config:
+      fixture: gpio_loopback
+    platform_allow:
+      - nrf54lm20apdk/nrf54lm20a/cpuapp
+    integration_platforms:
+      - nrf54lm20apdk/nrf54lm20a/cpuapp