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path: root/drivers/base/power/main.c
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Diffstat (limited to 'drivers/base/power/main.c')
-rw-r--r--drivers/base/power/main.c35
1 files changed, 30 insertions, 5 deletions
diff --git a/drivers/base/power/main.c b/drivers/base/power/main.c
index 0113adc310dc..57f5814c2732 100644
--- a/drivers/base/power/main.c
+++ b/drivers/base/power/main.c
@@ -57,20 +57,17 @@ static pm_message_t pm_transition;
static int async_error;
/**
- * device_pm_init - Initialize the PM-related part of a device object.
+ * device_pm_sleep_init - Initialize system suspend-related device fields.
* @dev: Device object being initialized.
*/
-void device_pm_init(struct device *dev)
+void device_pm_sleep_init(struct device *dev)
{
dev->power.is_prepared = false;
dev->power.is_suspended = false;
init_completion(&dev->power.completion);
complete_all(&dev->power.completion);
dev->power.wakeup = NULL;
- spin_lock_init(&dev->power.lock);
- pm_runtime_init(dev);
INIT_LIST_HEAD(&dev->power.entry);
- dev->power.power_state = PMSG_INVALID;
}
/**
@@ -408,6 +405,9 @@ static int device_resume_noirq(struct device *dev, pm_message_t state)
TRACE_DEVICE(dev);
TRACE_RESUME(0);
+ if (dev->power.syscore)
+ goto Out;
+
if (dev->pm_domain) {
info = "noirq power domain ";
callback = pm_noirq_op(&dev->pm_domain->ops, state);
@@ -429,6 +429,7 @@ static int device_resume_noirq(struct device *dev, pm_message_t state)
error = dpm_run_callback(callback, dev, state, info);
+ Out:
TRACE_RESUME(error);
return error;
}
@@ -486,6 +487,9 @@ static int device_resume_early(struct device *dev, pm_message_t state)
TRACE_DEVICE(dev);
TRACE_RESUME(0);
+ if (dev->power.syscore)
+ goto Out;
+
if (dev->pm_domain) {
info = "early power domain ";
callback = pm_late_early_op(&dev->pm_domain->ops, state);
@@ -507,6 +511,7 @@ static int device_resume_early(struct device *dev, pm_message_t state)
error = dpm_run_callback(callback, dev, state, info);
+ Out:
TRACE_RESUME(error);
return error;
}
@@ -570,6 +575,9 @@ static int device_resume(struct device *dev, pm_message_t state, bool async)
TRACE_DEVICE(dev);
TRACE_RESUME(0);
+ if (dev->power.syscore)
+ goto Complete;
+
dpm_wait(dev->parent, async);
device_lock(dev);
@@ -632,6 +640,8 @@ static int device_resume(struct device *dev, pm_message_t state, bool async)
Unlock:
device_unlock(dev);
+
+ Complete:
complete_all(&dev->power.completion);
TRACE_RESUME(error);
@@ -722,6 +732,9 @@ static void device_complete(struct device *dev, pm_message_t state)
void (*callback)(struct device *) = NULL;
char *info = NULL;
+ if (dev->power.syscore)
+ return;
+
device_lock(dev);
if (dev->pm_domain) {
@@ -834,6 +847,9 @@ static int device_suspend_noirq(struct device *dev, pm_message_t state)
pm_callback_t callback = NULL;
char *info = NULL;
+ if (dev->power.syscore)
+ return 0;
+
if (dev->pm_domain) {
info = "noirq power domain ";
callback = pm_noirq_op(&dev->pm_domain->ops, state);
@@ -917,6 +933,9 @@ static int device_suspend_late(struct device *dev, pm_message_t state)
pm_callback_t callback = NULL;
char *info = NULL;
+ if (dev->power.syscore)
+ return 0;
+
if (dev->pm_domain) {
info = "late power domain ";
callback = pm_late_early_op(&dev->pm_domain->ops, state);
@@ -1053,6 +1072,9 @@ static int __device_suspend(struct device *dev, pm_message_t state, bool async)
goto Complete;
}
+ if (dev->power.syscore)
+ goto Complete;
+
device_lock(dev);
if (dev->pm_domain) {
@@ -1209,6 +1231,9 @@ static int device_prepare(struct device *dev, pm_message_t state)
char *info = NULL;
int error = 0;
+ if (dev->power.syscore)
+ return 0;
+
device_lock(dev);
dev->power.wakeup_path = device_may_wakeup(dev);