tests: power: multicore: Fix power state entry for LMT (770eba36) · Commits · Wenxi XU / zephyr

Enter SYS_POWER_STATE_CPU_LPS_2(C2LP) state on Lakemont to achieve the Low Power Sensing Standby(LPSS) state on Quark SE C1000. Also added a busy loop to have syncronization b/w x86 and ARC console outputs. Signed-off-by:

Ramakrishna Pallala <ramakrishna.pallala@intel.com>

tests/power/multicore/lmt/src/main.c

+7 −2

Original line number	Diff line number	Diff line
		@@ -61,13 +61,13 @@ int _sys_soc_suspend(s32_t ticks)

		suspend_devices();

		_sys_soc_set_power_state(SYS_POWER_STATE_DEEP_SLEEP_2);
		_sys_soc_set_power_state(SYS_POWER_STATE_CPU_LPS_2);

		resume_devices();

		printk("LMT: Succeed.\n");

		_sys_soc_power_state_post_ops(SYS_POWER_STATE_DEEP_SLEEP_2);
		_sys_soc_power_state_post_ops(SYS_POWER_STATE_CPU_LPS_2);

		return SYS_PM_DEEP_SLEEP;
		}
		@@ -150,6 +150,11 @@ void main(void)
		rtc_set_config(rtc_dev, &config);

		while (1) {
		/* Add a busy loop to syncronize the
		* console output b/w x86 and ARC.
		*/
		k_busy_wait(1000 * 1000);

		/* Simulate some task handling by busy waiting. */
		printk("LMT: busy\n");
		k_busy_wait(TASK_TIME_IN_SEC * 1000 * 1000);

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