tests: zephyr: drivers: i2s: i2s_additional: Run test on 54LM20

Copy test from sdk-zephyr and enable it on nRF54LM20A targets.

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

Author: nordic-segl

tests/zephyr/drivers/i2s/i2s_additional/CMakeLists.txt

@@ -0,0 +1,9 @@
+# SPDX-License-Identifier: LicenseRef-Nordic-5-Clause
+
+cmake_minimum_required(VERSION 3.20.0)
+
+find_package(Zephyr REQUIRED HINTS $ENV{ZEPHYR_BASE})
+project(i2s_additional)
+
+FILE(GLOB app_sources ${ZEPHYR_BASE}/tests/drivers/i2s/i2s_additional/src/*.c)
+target_sources(app PRIVATE ${app_sources})

tests/zephyr/drivers/i2s/i2s_additional/Kconfig

@@ -0,0 +1 @@
+source "tests/drivers/i2s/i2s_additional/Kconfig"

tests/zephyr/drivers/i2s/i2s_additional/README.txt

@@ -0,0 +1,3 @@
+This sample extends the same-named Zephyr sample to verify it with Nordic development kits.
+
+Source code and basic configuration files can be found in the corresponding folder structure in zephyr/tests/drivers/i2s/i2s_additional.

tests/zephyr/drivers/i2s/i2s_additional/boards/nrf54lm20pdk_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, 18)>,
+				<NRF_PSEL(TDM_FSYNC_M, 1, 16)>,
+				<NRF_PSEL(TDM_SDOUT, 1, 30)>,
+				<NRF_PSEL(TDM_SDIN, 1, 31)>;
+		};
+	};
+};
+
+&tdm {
+	status = "okay";
+	pinctrl-0 = <&tdm_default_alt>;
+	pinctrl-names = "default";
+};

tests/zephyr/drivers/i2s/i2s_additional/boards/nrf54lm20pdk_nrf54lm20a_cpuapp_0_0_0.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, 0)>,
+				<NRF_PSEL(TDM_FSYNC_M, 1, 9)>,
+				<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_additional/boards/nrf54lm20pdk_nrf54lm20a_cpuapp_0_2_0_csp.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, 23)>,
+				<NRF_PSEL(TDM_FSYNC_M, 1, 14)>,
+				<NRF_PSEL(TDM_SDOUT, 1, 30)>,
+				<NRF_PSEL(TDM_SDIN, 1, 31)>;
+		};
+	};
+};
+
+&tdm {
+	status = "okay";
+	pinctrl-0 = <&tdm_default_alt>;
+	pinctrl-names = "default";
+};

tests/zephyr/drivers/i2s/i2s_additional/prj.conf

@@ -0,0 +1,2 @@
+CONFIG_I2S=y
+CONFIG_ZTEST=y

tests/zephyr/drivers/i2s/i2s_additional/testcase.yaml

@@ -0,0 +1,22 @@
+common:
+  tags:
+    - drivers
+    - i2s
+    - ci_tests_zephyr_drivers_i2s
+  depends_on:
+    - i2s
+    - gpio
+  filter: CONFIG_I2S_TEST_USE_GPIO_LOOPBACK
+  harness: ztest
+
+tests:
+  nrf.extended.drivers.i2s.additional.gpio_loopback:
+    harness_config:
+      fixture: gpio_loopback
+    platform_allow:
+      - nrf54lm20pdk/nrf54lm20a/cpuapp
+      - [email protected]/nrf54lm20a/cpuapp
+      - [email protected]/nrf54lm20a/cpuapp
+      - [email protected]/nrf54lm20a/cpuapp
+    integration_platforms:
+      - nrf54lm20pdk/nrf54lm20a/cpuapp