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| author | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2014-06-07 00:17:50 +0200 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2014-06-07 00:17:50 +0200 |
| commit | 3eba148d75670f61463dd3c9ef8672da8f290f36 (patch) | |
| tree | 45cb8fbda6d6ce9d73aeeac673282e37b0be2531 /kernel/power | |
| parent | PM / hibernate: fixed typo in comment (diff) | |
| parent | ACPI / PM: Export rest of the subsys PM callbacks (diff) | |
| download | linux-3eba148d75670f61463dd3c9ef8672da8f290f36.tar.xz linux-3eba148d75670f61463dd3c9ef8672da8f290f36.zip | |
Merge branch 'acpi-pm' into pm-sleep
Diffstat (limited to 'kernel/power')
| -rw-r--r-- | kernel/power/snapshot.c | 2 | ||||
| -rw-r--r-- | kernel/power/suspend.c | 15 |
2 files changed, 16 insertions, 1 deletions
diff --git a/kernel/power/snapshot.c b/kernel/power/snapshot.c index 18fb7a2fb14b..1ea328aafdc9 100644 --- a/kernel/power/snapshot.c +++ b/kernel/power/snapshot.c @@ -1586,7 +1586,7 @@ swsusp_alloc(struct memory_bitmap *orig_bm, struct memory_bitmap *copy_bm, return -ENOMEM; } -asmlinkage int swsusp_save(void) +asmlinkage __visible int swsusp_save(void) { unsigned int nr_pages, nr_highmem; diff --git a/kernel/power/suspend.c b/kernel/power/suspend.c index 338a6f147974..963e6d0f050b 100644 --- a/kernel/power/suspend.c +++ b/kernel/power/suspend.c @@ -38,6 +38,7 @@ struct pm_sleep_state pm_states[PM_SUSPEND_MAX] = { }; static const struct platform_suspend_ops *suspend_ops; +static const struct platform_freeze_ops *freeze_ops; static bool need_suspend_ops(suspend_state_t state) { @@ -47,6 +48,13 @@ static bool need_suspend_ops(suspend_state_t state) static DECLARE_WAIT_QUEUE_HEAD(suspend_freeze_wait_head); static bool suspend_freeze_wake; +void freeze_set_ops(const struct platform_freeze_ops *ops) +{ + lock_system_sleep(); + freeze_ops = ops; + unlock_system_sleep(); +} + static void freeze_begin(void) { suspend_freeze_wake = false; @@ -291,6 +299,10 @@ int suspend_devices_and_enter(suspend_state_t state) error = suspend_ops->begin(state); if (error) goto Close; + } else if (state == PM_SUSPEND_FREEZE && freeze_ops->begin) { + error = freeze_ops->begin(); + if (error) + goto Close; } suspend_console(); suspend_test_start(); @@ -316,6 +328,9 @@ int suspend_devices_and_enter(suspend_state_t state) Close: if (need_suspend_ops(state) && suspend_ops->end) suspend_ops->end(); + else if (state == PM_SUSPEND_FREEZE && freeze_ops->end) + freeze_ops->end(); + trace_machine_suspend(PWR_EVENT_EXIT); return error; |