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Diffstat (limited to 'kernel')
-rw-r--r--kernel/power/process.c2
-rw-r--r--kernel/power/suspend.c29
2 files changed, 26 insertions, 5 deletions
diff --git a/kernel/power/process.c b/kernel/power/process.c
index c7209f060eeb..78672d324a6e 100644
--- a/kernel/power/process.c
+++ b/kernel/power/process.c
@@ -132,7 +132,7 @@ int freeze_processes(void)
if (!pm_freezing)
atomic_inc(&system_freezing_cnt);
- pm_wakeup_clear();
+ pm_wakeup_clear(true);
pr_info("Freezing user space processes ... ");
pm_freezing = true;
error = try_to_freeze_tasks(true);
diff --git a/kernel/power/suspend.c b/kernel/power/suspend.c
index 15e6baef5c73..c0248c74d6d4 100644
--- a/kernel/power/suspend.c
+++ b/kernel/power/suspend.c
@@ -72,6 +72,8 @@ static void freeze_begin(void)
static void freeze_enter(void)
{
+ trace_suspend_resume(TPS("machine_suspend"), PM_SUSPEND_FREEZE, true);
+
spin_lock_irq(&suspend_freeze_lock);
if (pm_wakeup_pending())
goto out;
@@ -98,6 +100,27 @@ static void freeze_enter(void)
out:
suspend_freeze_state = FREEZE_STATE_NONE;
spin_unlock_irq(&suspend_freeze_lock);
+
+ trace_suspend_resume(TPS("machine_suspend"), PM_SUSPEND_FREEZE, false);
+}
+
+static void s2idle_loop(void)
+{
+ do {
+ freeze_enter();
+
+ if (freeze_ops && freeze_ops->wake)
+ freeze_ops->wake();
+
+ dpm_resume_noirq(PMSG_RESUME);
+ if (freeze_ops && freeze_ops->sync)
+ freeze_ops->sync();
+
+ if (pm_wakeup_pending())
+ break;
+
+ pm_wakeup_clear(false);
+ } while (!dpm_suspend_noirq(PMSG_SUSPEND));
}
void freeze_wake(void)
@@ -371,10 +394,8 @@ static int suspend_enter(suspend_state_t state, bool *wakeup)
* all the devices are suspended.
*/
if (state == PM_SUSPEND_FREEZE) {
- trace_suspend_resume(TPS("machine_suspend"), state, true);
- freeze_enter();
- trace_suspend_resume(TPS("machine_suspend"), state, false);
- goto Platform_wake;
+ s2idle_loop();
+ goto Platform_early_resume;
}
error = disable_nonboot_cpus();