tests: benchmarks: Run idle USB benchmark on nrf54lm20dk

nrf54lm20dk does support HSUSB, enable idle usb test for it

Signed-off-by: Bartosz Miller <[email protected]>

Author: nordic-bami

tests/benchmarks/multicore/idle_usb/CMakeLists.txt

@@ -9,9 +9,9 @@ cmake_minimum_required(VERSION 3.20.0)
 find_package(Zephyr REQUIRED HINTS $ENV{ZEPHYR_BASE})
 
 if(NOT SYSBUILD)
-	message(FATAL_ERROR
-		" This is a multi-image application that should be built using sysbuild.\n"
-		" Add --sysbuild argument to west build command to prepare all the images.")
+  message(FATAL_ERROR
+    " This is a multi-image application that should be built using sysbuild.\n"
+    " Add --sysbuild argument to west build command to prepare all the images.")
 endif()
 
 project(idle_usb)

tests/benchmarks/multicore/idle_usb/Kconfig.sysbuild

@@ -7,4 +7,5 @@
 source "share/sysbuild/Kconfig"
 
 config REMOTE_BOARD
-	string "The board used for remote target"
+	string
+	default "$(BOARD)/nrf54h20/cpurad" if SOC_NRF54H20

tests/benchmarks/multicore/idle_usb/boards/nrf54lm20dk_nrf54lm20a_cpuapp.overlay

@@ -0,0 +1,22 @@
+/*
+ * Copyright (c) 2025 Nordic Semiconductor ASA
+ *
+ * SPDX-License-Identifier: LicenseRef-Nordic-5-Clause
+ */
+
+/ {
+	aliases {
+		led = &led0;
+	};
+};
+
+&zephyr_udc0 {
+	cdc_acm_uart0 {
+		compatible = "zephyr,cdc-acm-uart";
+	};
+};
+
+&uart20 {
+	zephyr,pm-device-runtime-auto;
+	disable-rx;
+};

tests/benchmarks/multicore/idle_usb/sysbuild.cmake

@@ -4,19 +4,11 @@
 # SPDX-License-Identifier: LicenseRef-Nordic-5-Clause
 #
 
-if("${SB_CONFIG_REMOTE_BOARD}" STREQUAL "")
-  message(FATAL_ERROR "REMOTE_BOARD must be set to a valid board name")
-endif()
-
-# Add remote project
-ExternalZephyrProject_Add(
+if(SB_CONFIG_REMOTE_BOARD)
+  ExternalZephyrProject_Add(
     APPLICATION remote
     SOURCE_DIR ${ZEPHYR_NRF_MODULE_DIR}/tests/benchmarks/power_consumption/common/remote_sleep_forever
     BOARD ${SB_CONFIG_REMOTE_BOARD}
     BOARD_REVISION ${BOARD_REVISION}
   )
-
-# Add a dependency so that the remote image will be built and flashed first
-add_dependencies(idle_usb remote)
-# Add dependency so that the remote image is flashed first.
-sysbuild_add_dependencies(FLASH idle_usb remote)
+endif()

tests/benchmarks/multicore/idle_usb/sysbuild/nrf54h20dk_nrf54h20_cpurad.conf

@@ -11,10 +11,10 @@ tests:
     harness: pytest
     platform_allow:
       - nrf54h20dk/nrf54h20/cpuapp
+      - nrf54lm20dk/nrf54lm20a/cpuapp
     integration_platforms:
       - nrf54h20dk/nrf54h20/cpuapp
-    extra_args:
-      - SB_CONF_FILE=sysbuild/nrf54h20dk_nrf54h20_cpurad.conf
+      - nrf54lm20dk/nrf54lm20a/cpuapp
     harness_config:
       fixture: ppk_power_measure_usb
       pytest_root: