/**
* suspend_enter - enter the desired system sleep state.
* @state: state to enter
*
* This function should be called after devices have been suspended.
*/
static int suspend_enter(suspend_state_t state)
{
int error;
if (suspend_ops->prepare) {
error = suspend_ops->prepare();
if (error)
return error;
}
error = dpm_suspend_noirq(PMSG_SUSPEND);
if (error) {
printk(KERN_ERR "PM: Some devices failed to power down\n");
goto Platfrom_finish;
}
if (suspend_ops->prepare_late) {
error = suspend_ops->prepare_late();
if (error)
goto Power_up_devices;
}
if (suspend_test(TEST_PLATFORM))
goto Platform_wake;
error = disable_nonboot_cpus();
if (error || suspend_test(TEST_CPUS))
goto Enable_cpus;
error = _suspend_enter(state);
#ifdef CONFIG_QUICK_WAKEUP
while (!error && !quickwakeup_execute()) {
if (has_wake_lock(WAKE_LOCK_SUSPEND))
break;
error = _suspend_enter(state);
}
#endif
Enable_cpus:
enable_nonboot_cpus();
Platform_wake:
if (suspend_ops->wake)
suspend_ops->wake();
Power_up_devices:
dpm_resume_noirq(PMSG_RESUME);
Platfrom_finish:
if (suspend_ops->finish)
suspend_ops->finish();
return error;
}
/**
* suspend_enter - enter the desired system sleep state.
* @state: state to enter
*
* This function should be called after devices have been suspended.
*/
static int suspend_enter(suspend_state_t state)
{
int error = 0;
device_pm_lock();
error = _suspend_enter(state);
#ifdef CONFIG_QUICK_WAKEUP
while (!error && !quickwakeup_execute()) {
if (has_wake_lock(WAKE_LOCK_SUSPEND))
break;
error = _suspend_enter(state);
}
#endif
device_pm_unlock();
return error;
}