power: Consider the exit latency required by an idle state (cdcd2dff) · Commits · Wenxi XU / zephyr

subsys/power/power.c

+10 −0

Original line number	Diff line number	Diff line
		@@ -6,6 +6,7 @@

		#include <zephyr.h>
		#include <kernel.h>
		#include <timeout_q.h>
		#include <init.h>
		#include <string.h>
		#include <power/power.h>
		@@ -180,6 +181,15 @@ enum pm_state pm_system_suspend(int32_t ticks)
		}
		post_ops_done = 0;

		if (ticks != K_TICKS_FOREVER) {
		/*
		* We need to set the timer to interrupt a little bit early to
		* accommodate the time required by the CPU to fully wake up.
		*/
		z_set_timeout_expiry(ticks -
		k_us_to_ticks_ceil32(z_power_state.exit_latency_us), true);
		}

		#if CONFIG_PM_DEVICE

		bool should_resume_devices = true;