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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.c175
1 files changed, 93 insertions, 82 deletions
diff --git a/drivers/base/power/main.c b/drivers/base/power/main.c
index 83404973f97..052dc53eef3 100644
--- a/drivers/base/power/main.c
+++ b/drivers/base/power/main.c
@@ -423,26 +423,22 @@ static int device_resume_noirq(struct device *dev, pm_message_t state)
TRACE_DEVICE(dev);
TRACE_RESUME(0);
- if (dev->bus && dev->bus->pm) {
- pm_dev_dbg(dev, state, "EARLY ");
- error = pm_noirq_op(dev, dev->bus->pm, state);
- if (error)
- goto End;
+ if (dev->pwr_domain) {
+ pm_dev_dbg(dev, state, "EARLY power domain ");
+ pm_noirq_op(dev, &dev->pwr_domain->ops, state);
}
if (dev->type && dev->type->pm) {
pm_dev_dbg(dev, state, "EARLY type ");
error = pm_noirq_op(dev, dev->type->pm, state);
- if (error)
- goto End;
- }
-
- if (dev->class && dev->class->pm) {
+ } else if (dev->class && dev->class->pm) {
pm_dev_dbg(dev, state, "EARLY class ");
error = pm_noirq_op(dev, dev->class->pm, state);
+ } else if (dev->bus && dev->bus->pm) {
+ pm_dev_dbg(dev, state, "EARLY ");
+ error = pm_noirq_op(dev, dev->bus->pm, state);
}
-End:
TRACE_RESUME(error);
return error;
}
@@ -518,36 +514,39 @@ static int device_resume(struct device *dev, pm_message_t state, bool async)
dev->power.in_suspend = false;
- if (dev->bus) {
- if (dev->bus->pm) {
- pm_dev_dbg(dev, state, "");
- error = pm_op(dev, dev->bus->pm, state);
- } else if (dev->bus->resume) {
- pm_dev_dbg(dev, state, "legacy ");
- error = legacy_resume(dev, dev->bus->resume);
- }
- if (error)
- goto End;
+ if (dev->pwr_domain) {
+ pm_dev_dbg(dev, state, "power domain ");
+ pm_op(dev, &dev->pwr_domain->ops, state);
}
- if (dev->type) {
- if (dev->type->pm) {
- pm_dev_dbg(dev, state, "type ");
- error = pm_op(dev, dev->type->pm, state);
- }
- if (error)
- goto End;
+ if (dev->type && dev->type->pm) {
+ pm_dev_dbg(dev, state, "type ");
+ error = pm_op(dev, dev->type->pm, state);
+ goto End;
}
if (dev->class) {
if (dev->class->pm) {
pm_dev_dbg(dev, state, "class ");
error = pm_op(dev, dev->class->pm, state);
+ goto End;
} else if (dev->class->resume) {
pm_dev_dbg(dev, state, "legacy class ");
error = legacy_resume(dev, dev->class->resume);
+ goto End;
}
}
+
+ if (dev->bus) {
+ if (dev->bus->pm) {
+ pm_dev_dbg(dev, state, "");
+ error = pm_op(dev, dev->bus->pm, state);
+ } else if (dev->bus->resume) {
+ pm_dev_dbg(dev, state, "legacy ");
+ error = legacy_resume(dev, dev->bus->resume);
+ }
+ }
+
End:
device_unlock(dev);
complete_all(&dev->power.completion);
@@ -629,19 +628,23 @@ static void device_complete(struct device *dev, pm_message_t state)
{
device_lock(dev);
- if (dev->class && dev->class->pm && dev->class->pm->complete) {
- pm_dev_dbg(dev, state, "completing class ");
- dev->class->pm->complete(dev);
+ if (dev->pwr_domain && dev->pwr_domain->ops.complete) {
+ pm_dev_dbg(dev, state, "completing power domain ");
+ dev->pwr_domain->ops.complete(dev);
}
- if (dev->type && dev->type->pm && dev->type->pm->complete) {
+ if (dev->type && dev->type->pm) {
pm_dev_dbg(dev, state, "completing type ");
- dev->type->pm->complete(dev);
- }
-
- if (dev->bus && dev->bus->pm && dev->bus->pm->complete) {
+ if (dev->type->pm->complete)
+ dev->type->pm->complete(dev);
+ } else if (dev->class && dev->class->pm) {
+ pm_dev_dbg(dev, state, "completing class ");
+ if (dev->class->pm->complete)
+ dev->class->pm->complete(dev);
+ } else if (dev->bus && dev->bus->pm) {
pm_dev_dbg(dev, state, "completing ");
- dev->bus->pm->complete(dev);
+ if (dev->bus->pm->complete)
+ dev->bus->pm->complete(dev);
}
device_unlock(dev);
@@ -669,7 +672,6 @@ static void dpm_complete(pm_message_t state)
mutex_unlock(&dpm_list_mtx);
device_complete(dev, state);
- pm_runtime_put_sync(dev);
mutex_lock(&dpm_list_mtx);
put_device(dev);
@@ -727,29 +729,31 @@ static pm_message_t resume_event(pm_message_t sleep_state)
*/
static int device_suspend_noirq(struct device *dev, pm_message_t state)
{
- int error = 0;
-
- if (dev->class && dev->class->pm) {
- pm_dev_dbg(dev, state, "LATE class ");
- error = pm_noirq_op(dev, dev->class->pm, state);
- if (error)
- goto End;
- }
+ int error;
if (dev->type && dev->type->pm) {
pm_dev_dbg(dev, state, "LATE type ");
error = pm_noirq_op(dev, dev->type->pm, state);
if (error)
- goto End;
- }
-
- if (dev->bus && dev->bus->pm) {
+ return error;
+ } else if (dev->class && dev->class->pm) {
+ pm_dev_dbg(dev, state, "LATE class ");
+ error = pm_noirq_op(dev, dev->class->pm, state);
+ if (error)
+ return error;
+ } else if (dev->bus && dev->bus->pm) {
pm_dev_dbg(dev, state, "LATE ");
error = pm_noirq_op(dev, dev->bus->pm, state);
+ if (error)
+ return error;
}
-End:
- return error;
+ if (dev->pwr_domain) {
+ pm_dev_dbg(dev, state, "LATE power domain ");
+ pm_noirq_op(dev, &dev->pwr_domain->ops, state);
+ }
+
+ return 0;
}
/**
@@ -836,25 +840,22 @@ static int __device_suspend(struct device *dev, pm_message_t state, bool async)
goto End;
}
+ if (dev->type && dev->type->pm) {
+ pm_dev_dbg(dev, state, "type ");
+ error = pm_op(dev, dev->type->pm, state);
+ goto Domain;
+ }
+
if (dev->class) {
if (dev->class->pm) {
pm_dev_dbg(dev, state, "class ");
error = pm_op(dev, dev->class->pm, state);
+ goto Domain;
} else if (dev->class->suspend) {
pm_dev_dbg(dev, state, "legacy class ");
error = legacy_suspend(dev, state, dev->class->suspend);
+ goto Domain;
}
- if (error)
- goto End;
- }
-
- if (dev->type) {
- if (dev->type->pm) {
- pm_dev_dbg(dev, state, "type ");
- error = pm_op(dev, dev->type->pm, state);
- }
- if (error)
- goto End;
}
if (dev->bus) {
@@ -867,6 +868,12 @@ static int __device_suspend(struct device *dev, pm_message_t state, bool async)
}
}
+ Domain:
+ if (!error && dev->pwr_domain) {
+ pm_dev_dbg(dev, state, "power domain ");
+ pm_op(dev, &dev->pwr_domain->ops, state);
+ }
+
End:
device_unlock(dev);
complete_all(&dev->power.completion);
@@ -957,27 +964,34 @@ static int device_prepare(struct device *dev, pm_message_t state)
device_lock(dev);
- if (dev->bus && dev->bus->pm && dev->bus->pm->prepare) {
+ if (dev->type && dev->type->pm) {
+ pm_dev_dbg(dev, state, "preparing type ");
+ if (dev->type->pm->prepare)
+ error = dev->type->pm->prepare(dev);
+ suspend_report_result(dev->type->pm->prepare, error);
+ if (error)
+ goto End;
+ } else if (dev->class && dev->class->pm) {
+ pm_dev_dbg(dev, state, "preparing class ");
+ if (dev->class->pm->prepare)
+ error = dev->class->pm->prepare(dev);
+ suspend_report_result(dev->class->pm->prepare, error);
+ if (error)
+ goto End;
+ } else if (dev->bus && dev->bus->pm) {
pm_dev_dbg(dev, state, "preparing ");
- error = dev->bus->pm->prepare(dev);
+ if (dev->bus->pm->prepare)
+ error = dev->bus->pm->prepare(dev);
suspend_report_result(dev->bus->pm->prepare, error);
if (error)
goto End;
}
- if (dev->type && dev->type->pm && dev->type->pm->prepare) {
- pm_dev_dbg(dev, state, "preparing type ");
- error = dev->type->pm->prepare(dev);
- suspend_report_result(dev->type->pm->prepare, error);
- if (error)
- goto End;
+ if (dev->pwr_domain && dev->pwr_domain->ops.prepare) {
+ pm_dev_dbg(dev, state, "preparing power domain ");
+ dev->pwr_domain->ops.prepare(dev);
}
- if (dev->class && dev->class->pm && dev->class->pm->prepare) {
- pm_dev_dbg(dev, state, "preparing class ");
- error = dev->class->pm->prepare(dev);
- suspend_report_result(dev->class->pm->prepare, error);
- }
End:
device_unlock(dev);
@@ -1005,12 +1019,9 @@ static int dpm_prepare(pm_message_t state)
if (pm_runtime_barrier(dev) && device_may_wakeup(dev))
pm_wakeup_event(dev, 0);
- if (pm_wakeup_pending()) {
- pm_runtime_put_sync(dev);
- error = -EBUSY;
- } else {
- error = device_prepare(dev, state);
- }
+ pm_runtime_put_sync(dev);
+ error = pm_wakeup_pending() ?
+ -EBUSY : device_prepare(dev, state);
mutex_lock(&dpm_list_mtx);
if (error) {
generated by cgit v1.2.3-18-g5258 (git 2.32.0) at 2024-12-22 17:53:24 +0000