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path: root/drivers/base/power/runtime.c
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Diffstat (limited to 'drivers/base/power/runtime.c')
-rw-r--r--drivers/base/power/runtime.c77
1 files changed, 38 insertions, 39 deletions
diff --git a/drivers/base/power/runtime.c b/drivers/base/power/runtime.c
index e9520ad2d716..ec08f1ae63f1 100644
--- a/drivers/base/power/runtime.c
+++ b/drivers/base/power/runtime.c
@@ -15,6 +15,44 @@ static int __pm_request_idle(struct device *dev);
static int __pm_request_resume(struct device *dev);
/**
+ * update_pm_runtime_accounting - Update the time accounting of power states
+ * @dev: Device to update the accounting for
+ *
+ * In order to be able to have time accounting of the various power states
+ * (as used by programs such as PowerTOP to show the effectiveness of runtime
+ * PM), we need to track the time spent in each state.
+ * update_pm_runtime_accounting must be called each time before the
+ * runtime_status field is updated, to account the time in the old state
+ * correctly.
+ */
+void update_pm_runtime_accounting(struct device *dev)
+{
+ unsigned long now = jiffies;
+ int delta;
+
+ delta = now - dev->power.accounting_timestamp;
+
+ if (delta < 0)
+ delta = 0;
+
+ dev->power.accounting_timestamp = now;
+
+ if (dev->power.disable_depth > 0)
+ return;
+
+ if (dev->power.runtime_status == RPM_SUSPENDED)
+ dev->power.suspended_jiffies += delta;
+ else
+ dev->power.active_jiffies += delta;
+}
+
+static void __update_runtime_status(struct device *dev, enum rpm_status status)
+{
+ update_pm_runtime_accounting(dev);
+ dev->power.runtime_status = status;
+}
+
+/**
* pm_runtime_deactivate_timer - Deactivate given device's suspend timer.
* @dev: Device to handle.
*/
@@ -123,45 +161,6 @@ int pm_runtime_idle(struct device *dev)
}
EXPORT_SYMBOL_GPL(pm_runtime_idle);
-
-/**
- * update_pm_runtime_accounting - Update the time accounting of power states
- * @dev: Device to update the accounting for
- *
- * In order to be able to have time accounting of the various power states
- * (as used by programs such as PowerTOP to show the effectiveness of runtime
- * PM), we need to track the time spent in each state.
- * update_pm_runtime_accounting must be called each time before the
- * runtime_status field is updated, to account the time in the old state
- * correctly.
- */
-void update_pm_runtime_accounting(struct device *dev)
-{
- unsigned long now = jiffies;
- int delta;
-
- delta = now - dev->power.accounting_timestamp;
-
- if (delta < 0)
- delta = 0;
-
- dev->power.accounting_timestamp = now;
-
- if (dev->power.disable_depth > 0)
- return;
-
- if (dev->power.runtime_status == RPM_SUSPENDED)
- dev->power.suspended_jiffies += delta;
- else
- dev->power.active_jiffies += delta;
-}
-
-static void __update_runtime_status(struct device *dev, enum rpm_status status)
-{
- update_pm_runtime_accounting(dev);
- dev->power.runtime_status = status;
-}
-
/**
* __pm_runtime_suspend - Carry out run-time suspend of given device.
* @dev: Device to suspend.