diff options
Diffstat (limited to 'kernel/power')
| -rw-r--r-- | kernel/power/suspend.c | 19 |
1 files changed, 16 insertions, 3 deletions
diff --git a/kernel/power/suspend.c b/kernel/power/suspend.c index 0c61713b6e5c..5cf232795318 100644 --- a/kernel/power/suspend.c +++ b/kernel/power/suspend.c @@ -108,19 +108,32 @@ static void s2idle_loop(void) { pm_pr_dbg("suspend-to-idle\n"); - while (!dpm_suspend_noirq(PMSG_SUSPEND)) { + for (;;) { + int error; + + dpm_noirq_begin(); + /* * Suspend-to-idle equals * frozen processes + suspended devices + idle processors. * Thus freeze_enter() should be called right after * all devices have been suspended. */ - freeze_enter(); + error = dpm_noirq_suspend_devices(PMSG_SUSPEND); + if (!error) + freeze_enter(); + + dpm_noirq_resume_devices(PMSG_RESUME); + if (error && (error != -EBUSY || !pm_wakeup_pending())) { + dpm_noirq_end(); + break; + } if (freeze_ops && freeze_ops->wake) freeze_ops->wake(); - dpm_resume_noirq(PMSG_RESUME); + dpm_noirq_end(); + if (freeze_ops && freeze_ops->sync) freeze_ops->sync(); |