It is pointless to pause cpuidle in the suspend-to-idle path,
because it is going to be resumed in the same path later and
pausing it does not serve any particular purpose in that case.
Rework the code to avoid doing that.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
Tested-by: Ulf Hansson <ulf.hansson@linaro.org>
resume_device_irqs();
device_wakeup_disarm_wake_irqs();
-
- cpuidle_resume();
}
/**
void dpm_resume_start(pm_message_t state)
{
dpm_resume_noirq(state);
+ cpuidle_resume();
dpm_resume_early(state);
}
EXPORT_SYMBOL_GPL(dpm_resume_start);
{
int ret;
- cpuidle_pause();
-
device_wakeup_arm_wake_irqs();
suspend_device_irqs();
if (error)
goto out;
+ cpuidle_pause();
+
error = dpm_suspend_noirq(state);
- if (error)
+ if (error) {
+ cpuidle_resume();
dpm_resume_early(resume_event(state));
+ }
out:
dpm_show_time(starttime, state, error, "end");
raw_spin_unlock_irq(&s2idle_lock);
cpus_read_lock();
- cpuidle_resume();
/* Push all the CPUs into the idle loop. */
wake_up_all_idle_cpus();
swait_event_exclusive(s2idle_wait_head,
s2idle_state == S2IDLE_STATE_WAKE);
- cpuidle_pause();
cpus_read_unlock();
raw_spin_lock_irq(&s2idle_lock);
if (error)
goto Devices_early_resume;
+ if (state != PM_SUSPEND_TO_IDLE)
+ cpuidle_pause();
+
error = dpm_suspend_noirq(PMSG_SUSPEND);
if (error) {
pr_err("noirq suspend of devices failed\n");
dpm_resume_noirq(PMSG_RESUME);
Platform_early_resume:
+ if (state != PM_SUSPEND_TO_IDLE)
+ cpuidle_resume();
+
platform_resume_early(state);
Devices_early_resume: