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Merge back earlier 'pm-runtime' material for 3.19-rc1.

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This commit is contained in:
Rafael J. Wysocki
2014-11-27 01:37:53 +01:00
parent 5d01410fe4 b2b49ccbdd
commit af261127e9
3 changed files with 34 additions and 36 deletions
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67
drivers/base/power/runtime.c
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@@ -13,42 +13,39 @@
#include <trace/events/rpm.h>
#include "power.h"
#define RPM_GET_CALLBACK(dev, cb) \
({ \
int (*__rpm_cb)(struct device *__d); \
\
if (dev->pm_domain) \
__rpm_cb = dev->pm_domain->ops.cb; \
else if (dev->type && dev->type->pm) \
__rpm_cb = dev->type->pm->cb; \
else if (dev->class && dev->class->pm) \
__rpm_cb = dev->class->pm->cb; \
else if (dev->bus && dev->bus->pm) \
__rpm_cb = dev->bus->pm->cb; \
else \
__rpm_cb = NULL; \
\
if (!__rpm_cb && dev->driver && dev->driver->pm) \
__rpm_cb = dev->driver->pm->cb; \
\
__rpm_cb; \
})
typedef int (*pm_callback_t)(struct device *);
static int (*rpm_get_suspend_cb(struct device *dev))(struct device *)
static pm_callback_t __rpm_get_callback(struct device *dev, size_t cb_offset)
{
return RPM_GET_CALLBACK(dev, runtime_suspend);
pm_callback_t cb;
const struct dev_pm_ops *ops;
if (dev->pm_domain)
ops = &dev->pm_domain->ops;
else if (dev->type && dev->type->pm)
ops = dev->type->pm;
else if (dev->class && dev->class->pm)
ops = dev->class->pm;
else if (dev->bus && dev->bus->pm)
ops = dev->bus->pm;
else
ops = NULL;
if (ops)
cb = *(pm_callback_t *)((void *)ops + cb_offset);
else
cb = NULL;
if (!cb && dev->driver && dev->driver->pm)
cb = *(pm_callback_t *)((void *)dev->driver->pm + cb_offset);
return cb;
}
static int (*rpm_get_resume_cb(struct device *dev))(struct device *)
{
return RPM_GET_CALLBACK(dev, runtime_resume);
}
#define RPM_GET_CALLBACK(dev, callback) \
__rpm_get_callback(dev, offsetof(struct dev_pm_ops, callback))
#ifdef CONFIG_PM_RUNTIME
static int (*rpm_get_idle_cb(struct device *dev))(struct device *)
{
return RPM_GET_CALLBACK(dev, runtime_idle);
}
static int rpm_resume(struct device *dev, int rpmflags);
static int rpm_suspend(struct device *dev, int rpmflags);
@@ -347,7 +344,7 @@ static int rpm_idle(struct device *dev, int rpmflags)
dev->power.idle_notification = true;
callback = rpm_get_idle_cb(dev);
callback = RPM_GET_CALLBACK(dev, runtime_idle);
if (callback)
retval = __rpm_callback(callback, dev);
@@ -517,7 +514,7 @@ static int rpm_suspend(struct device *dev, int rpmflags)
__update_runtime_status(dev, RPM_SUSPENDING);
callback = rpm_get_suspend_cb(dev);
callback = RPM_GET_CALLBACK(dev, runtime_suspend);
retval = rpm_callback(callback, dev);
if (retval)
@@ -737,7 +734,7 @@ static int rpm_resume(struct device *dev, int rpmflags)
__update_runtime_status(dev, RPM_RESUMING);
callback = rpm_get_resume_cb(dev);
callback = RPM_GET_CALLBACK(dev, runtime_resume);
retval = rpm_callback(callback, dev);
if (retval) {
@@ -1431,7 +1428,7 @@ int pm_runtime_force_suspend(struct device *dev)
if (pm_runtime_status_suspended(dev))
return 0;
callback = rpm_get_suspend_cb(dev);
callback = RPM_GET_CALLBACK(dev, runtime_suspend);
if (!callback) {
ret = -ENOSYS;
@@ -1467,7 +1464,7 @@ int pm_runtime_force_resume(struct device *dev)
int (*callback)(struct device *);
int ret = 0;
callback = rpm_get_resume_cb(dev);
callback = RPM_GET_CALLBACK(dev, runtime_resume);
if (!callback) {
ret = -ENOSYS;