tests/kernel/timer/timer_api/pm.overlay

/*
 * SPDX-FileCopyrightText: Copyright The Zephyr Project Contributors
 * SPDX-License-Identifier: Apache-2.0
 *
 * Minimal power state so CONFIG_PM has something to enter. The point is to
 * reach sys_clock_idle_enter() and sys_clock_idle_exit(), not to emulate a
 * real low-power mode.
 */

/ {
	cpus {
		power-states {
			idle_state: idle-state {
				compatible = "zephyr,power-state";
				power-state-name = "suspend-to-idle";
				min-residency-us = <0>;
			};
		};
	};
};

&{/cpus/cpu@0} {
	cpu-power-states = <&idle_state>;
};