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path: root/drivers/base/power/generic_ops.c
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Diffstat (limited to 'drivers/base/power/generic_ops.c')
-rw-r--r--drivers/base/power/generic_ops.c157
1 files changed, 104 insertions, 53 deletions
diff --git a/drivers/base/power/generic_ops.c b/drivers/base/power/generic_ops.c
index 10bdd793f0bd..d03d290f31c2 100644
--- a/drivers/base/power/generic_ops.c
+++ b/drivers/base/power/generic_ops.c
@@ -92,59 +92,28 @@ int pm_generic_prepare(struct device *dev)
}
/**
- * __pm_generic_call - Generic suspend/freeze/poweroff/thaw subsystem callback.
- * @dev: Device to handle.
- * @event: PM transition of the system under way.
- * @bool: Whether or not this is the "noirq" stage.
- *
- * Execute the PM callback corresponding to @event provided by the driver of
- * @dev, if defined, and return its error code. Return 0 if the callback is
- * not present.
+ * pm_generic_suspend_noirq - Generic suspend_noirq callback for subsystems.
+ * @dev: Device to suspend.
*/
-static int __pm_generic_call(struct device *dev, int event, bool noirq)
+int pm_generic_suspend_noirq(struct device *dev)
{
const struct dev_pm_ops *pm = dev->driver ? dev->driver->pm : NULL;
- int (*callback)(struct device *);
-
- if (!pm)
- return 0;
-
- switch (event) {
- case PM_EVENT_SUSPEND:
- callback = noirq ? pm->suspend_noirq : pm->suspend;
- break;
- case PM_EVENT_FREEZE:
- callback = noirq ? pm->freeze_noirq : pm->freeze;
- break;
- case PM_EVENT_HIBERNATE:
- callback = noirq ? pm->poweroff_noirq : pm->poweroff;
- break;
- case PM_EVENT_RESUME:
- callback = noirq ? pm->resume_noirq : pm->resume;
- break;
- case PM_EVENT_THAW:
- callback = noirq ? pm->thaw_noirq : pm->thaw;
- break;
- case PM_EVENT_RESTORE:
- callback = noirq ? pm->restore_noirq : pm->restore;
- break;
- default:
- callback = NULL;
- break;
- }
- return callback ? callback(dev) : 0;
+ return pm && pm->suspend_noirq ? pm->suspend_noirq(dev) : 0;
}
+EXPORT_SYMBOL_GPL(pm_generic_suspend_noirq);
/**
- * pm_generic_suspend_noirq - Generic suspend_noirq callback for subsystems.
+ * pm_generic_suspend_late - Generic suspend_late callback for subsystems.
* @dev: Device to suspend.
*/
-int pm_generic_suspend_noirq(struct device *dev)
+int pm_generic_suspend_late(struct device *dev)
{
- return __pm_generic_call(dev, PM_EVENT_SUSPEND, true);
+ const struct dev_pm_ops *pm = dev->driver ? dev->driver->pm : NULL;
+
+ return pm && pm->suspend_late ? pm->suspend_late(dev) : 0;
}
-EXPORT_SYMBOL_GPL(pm_generic_suspend_noirq);
+EXPORT_SYMBOL_GPL(pm_generic_suspend_late);
/**
* pm_generic_suspend - Generic suspend callback for subsystems.
@@ -152,7 +121,9 @@ EXPORT_SYMBOL_GPL(pm_generic_suspend_noirq);
*/
int pm_generic_suspend(struct device *dev)
{
- return __pm_generic_call(dev, PM_EVENT_SUSPEND, false);
+ const struct dev_pm_ops *pm = dev->driver ? dev->driver->pm : NULL;
+
+ return pm && pm->suspend ? pm->suspend(dev) : 0;
}
EXPORT_SYMBOL_GPL(pm_generic_suspend);
@@ -162,17 +133,33 @@ EXPORT_SYMBOL_GPL(pm_generic_suspend);
*/
int pm_generic_freeze_noirq(struct device *dev)
{
- return __pm_generic_call(dev, PM_EVENT_FREEZE, true);
+ const struct dev_pm_ops *pm = dev->driver ? dev->driver->pm : NULL;
+
+ return pm && pm->freeze_noirq ? pm->freeze_noirq(dev) : 0;
}
EXPORT_SYMBOL_GPL(pm_generic_freeze_noirq);
/**
+ * pm_generic_freeze_late - Generic freeze_late callback for subsystems.
+ * @dev: Device to freeze.
+ */
+int pm_generic_freeze_late(struct device *dev)
+{
+ const struct dev_pm_ops *pm = dev->driver ? dev->driver->pm : NULL;
+
+ return pm && pm->freeze_late ? pm->freeze_late(dev) : 0;
+}
+EXPORT_SYMBOL_GPL(pm_generic_freeze_late);
+
+/**
* pm_generic_freeze - Generic freeze callback for subsystems.
* @dev: Device to freeze.
*/
int pm_generic_freeze(struct device *dev)
{
- return __pm_generic_call(dev, PM_EVENT_FREEZE, false);
+ const struct dev_pm_ops *pm = dev->driver ? dev->driver->pm : NULL;
+
+ return pm && pm->freeze ? pm->freeze(dev) : 0;
}
EXPORT_SYMBOL_GPL(pm_generic_freeze);
@@ -182,17 +169,33 @@ EXPORT_SYMBOL_GPL(pm_generic_freeze);
*/
int pm_generic_poweroff_noirq(struct device *dev)
{
- return __pm_generic_call(dev, PM_EVENT_HIBERNATE, true);
+ const struct dev_pm_ops *pm = dev->driver ? dev->driver->pm : NULL;
+
+ return pm && pm->poweroff_noirq ? pm->poweroff_noirq(dev) : 0;
}
EXPORT_SYMBOL_GPL(pm_generic_poweroff_noirq);
/**
+ * pm_generic_poweroff_late - Generic poweroff_late callback for subsystems.
+ * @dev: Device to handle.
+ */
+int pm_generic_poweroff_late(struct device *dev)
+{
+ const struct dev_pm_ops *pm = dev->driver ? dev->driver->pm : NULL;
+
+ return pm && pm->poweroff_late ? pm->poweroff_late(dev) : 0;
+}
+EXPORT_SYMBOL_GPL(pm_generic_poweroff_late);
+
+/**
* pm_generic_poweroff - Generic poweroff callback for subsystems.
* @dev: Device to handle.
*/
int pm_generic_poweroff(struct device *dev)
{
- return __pm_generic_call(dev, PM_EVENT_HIBERNATE, false);
+ const struct dev_pm_ops *pm = dev->driver ? dev->driver->pm : NULL;
+
+ return pm && pm->poweroff ? pm->poweroff(dev) : 0;
}
EXPORT_SYMBOL_GPL(pm_generic_poweroff);
@@ -202,17 +205,33 @@ EXPORT_SYMBOL_GPL(pm_generic_poweroff);
*/
int pm_generic_thaw_noirq(struct device *dev)
{
- return __pm_generic_call(dev, PM_EVENT_THAW, true);
+ const struct dev_pm_ops *pm = dev->driver ? dev->driver->pm : NULL;
+
+ return pm && pm->thaw_noirq ? pm->thaw_noirq(dev) : 0;
}
EXPORT_SYMBOL_GPL(pm_generic_thaw_noirq);
/**
+ * pm_generic_thaw_early - Generic thaw_early callback for subsystems.
+ * @dev: Device to thaw.
+ */
+int pm_generic_thaw_early(struct device *dev)
+{
+ const struct dev_pm_ops *pm = dev->driver ? dev->driver->pm : NULL;
+
+ return pm && pm->thaw_early ? pm->thaw_early(dev) : 0;
+}
+EXPORT_SYMBOL_GPL(pm_generic_thaw_early);
+
+/**
* pm_generic_thaw - Generic thaw callback for subsystems.
* @dev: Device to thaw.
*/
int pm_generic_thaw(struct device *dev)
{
- return __pm_generic_call(dev, PM_EVENT_THAW, false);
+ const struct dev_pm_ops *pm = dev->driver ? dev->driver->pm : NULL;
+
+ return pm && pm->thaw ? pm->thaw(dev) : 0;
}
EXPORT_SYMBOL_GPL(pm_generic_thaw);
@@ -222,17 +241,33 @@ EXPORT_SYMBOL_GPL(pm_generic_thaw);
*/
int pm_generic_resume_noirq(struct device *dev)
{
- return __pm_generic_call(dev, PM_EVENT_RESUME, true);
+ const struct dev_pm_ops *pm = dev->driver ? dev->driver->pm : NULL;
+
+ return pm && pm->resume_noirq ? pm->resume_noirq(dev) : 0;
}
EXPORT_SYMBOL_GPL(pm_generic_resume_noirq);
/**
+ * pm_generic_resume_early - Generic resume_early callback for subsystems.
+ * @dev: Device to resume.
+ */
+int pm_generic_resume_early(struct device *dev)
+{
+ const struct dev_pm_ops *pm = dev->driver ? dev->driver->pm : NULL;
+
+ return pm && pm->resume_early ? pm->resume_early(dev) : 0;
+}
+EXPORT_SYMBOL_GPL(pm_generic_resume_early);
+
+/**
* pm_generic_resume - Generic resume callback for subsystems.
* @dev: Device to resume.
*/
int pm_generic_resume(struct device *dev)
{
- return __pm_generic_call(dev, PM_EVENT_RESUME, false);
+ const struct dev_pm_ops *pm = dev->driver ? dev->driver->pm : NULL;
+
+ return pm && pm->resume ? pm->resume(dev) : 0;
}
EXPORT_SYMBOL_GPL(pm_generic_resume);
@@ -242,17 +277,33 @@ EXPORT_SYMBOL_GPL(pm_generic_resume);
*/
int pm_generic_restore_noirq(struct device *dev)
{
- return __pm_generic_call(dev, PM_EVENT_RESTORE, true);
+ const struct dev_pm_ops *pm = dev->driver ? dev->driver->pm : NULL;
+
+ return pm && pm->restore_noirq ? pm->restore_noirq(dev) : 0;
}
EXPORT_SYMBOL_GPL(pm_generic_restore_noirq);
/**
+ * pm_generic_restore_early - Generic restore_early callback for subsystems.
+ * @dev: Device to resume.
+ */
+int pm_generic_restore_early(struct device *dev)
+{
+ const struct dev_pm_ops *pm = dev->driver ? dev->driver->pm : NULL;
+
+ return pm && pm->restore_early ? pm->restore_early(dev) : 0;
+}
+EXPORT_SYMBOL_GPL(pm_generic_restore_early);
+
+/**
* pm_generic_restore - Generic restore callback for subsystems.
* @dev: Device to restore.
*/
int pm_generic_restore(struct device *dev)
{
- return __pm_generic_call(dev, PM_EVENT_RESTORE, false);
+ const struct dev_pm_ops *pm = dev->driver ? dev->driver->pm : NULL;
+
+ return pm && pm->restore ? pm->restore(dev) : 0;
}
EXPORT_SYMBOL_GPL(pm_generic_restore);