diff options
| -rw-r--r-- | drivers/base/power/main.c | 8 | ||||
| -rw-r--r-- | include/linux/pm.h | 4 | ||||
| -rw-r--r-- | kernel/power/suspend.c | 14 |
3 files changed, 19 insertions, 7 deletions
diff --git a/drivers/base/power/main.c b/drivers/base/power/main.c index b67d9aef9fe4..44973196d3fd 100644 --- a/drivers/base/power/main.c +++ b/drivers/base/power/main.c @@ -540,7 +540,7 @@ static void async_resume_noirq(void *data, async_cookie_t cookie) * Call the "noirq" resume handlers for all devices in dpm_noirq_list and * enable device drivers to receive interrupts. */ -static void dpm_resume_noirq(pm_message_t state) +void dpm_resume_noirq(pm_message_t state) { struct device *dev; ktime_t starttime = ktime_get(); @@ -662,7 +662,7 @@ static void async_resume_early(void *data, async_cookie_t cookie) * dpm_resume_early - Execute "early resume" callbacks for all devices. * @state: PM transition of the system being carried out. */ -static void dpm_resume_early(pm_message_t state) +void dpm_resume_early(pm_message_t state) { struct device *dev; ktime_t starttime = ktime_get(); @@ -1093,7 +1093,7 @@ static int device_suspend_noirq(struct device *dev) * Prevent device drivers from receiving interrupts and call the "noirq" suspend * handlers for all non-sysdev devices. */ -static int dpm_suspend_noirq(pm_message_t state) +int dpm_suspend_noirq(pm_message_t state) { ktime_t starttime = ktime_get(); int error = 0; @@ -1232,7 +1232,7 @@ static int device_suspend_late(struct device *dev) * dpm_suspend_late - Execute "late suspend" callbacks for all devices. * @state: PM transition of the system being carried out. */ -static int dpm_suspend_late(pm_message_t state) +int dpm_suspend_late(pm_message_t state) { ktime_t starttime = ktime_get(); int error = 0; diff --git a/include/linux/pm.h b/include/linux/pm.h index 72c0fe098a27..e1c00b7ee913 100644 --- a/include/linux/pm.h +++ b/include/linux/pm.h @@ -679,12 +679,16 @@ struct dev_pm_domain { extern void device_pm_lock(void); extern void dpm_resume_start(pm_message_t state); extern void dpm_resume_end(pm_message_t state); +extern void dpm_resume_noirq(pm_message_t state); +extern void dpm_resume_early(pm_message_t state); extern void dpm_resume(pm_message_t state); extern void dpm_complete(pm_message_t state); extern void device_pm_unlock(void); extern int dpm_suspend_end(pm_message_t state); extern int dpm_suspend_start(pm_message_t state); +extern int dpm_suspend_noirq(pm_message_t state); +extern int dpm_suspend_late(pm_message_t state); extern int dpm_suspend(pm_message_t state); extern int dpm_prepare(pm_message_t state); diff --git a/kernel/power/suspend.c b/kernel/power/suspend.c index e837dd6783c6..58ae98b7dc2b 100644 --- a/kernel/power/suspend.c +++ b/kernel/power/suspend.c @@ -265,11 +265,16 @@ static int suspend_enter(suspend_state_t state, bool *wakeup) if (error) goto Platform_finish; - error = dpm_suspend_end(PMSG_SUSPEND); + error = dpm_suspend_late(PMSG_SUSPEND); if (error) { - printk(KERN_ERR "PM: Some devices failed to power down\n"); + printk(KERN_ERR "PM: late suspend of devices failed\n"); goto Platform_finish; } + error = dpm_suspend_noirq(PMSG_SUSPEND); + if (error) { + printk(KERN_ERR "PM: noirq suspend of devices failed\n"); + goto Devices_early_resume; + } error = platform_suspend_prepare_late(state); if (error) goto Platform_wake; @@ -319,7 +324,10 @@ static int suspend_enter(suspend_state_t state, bool *wakeup) Platform_wake: platform_suspend_wake(state); - dpm_resume_start(PMSG_RESUME); + dpm_resume_noirq(PMSG_RESUME); + + Devices_early_resume: + dpm_resume_early(PMSG_RESUME); Platform_finish: platform_suspend_finish(state); |