Commit 5f59df79 authored by Ulf Hansson's avatar Ulf Hansson Committed by Rafael J. Wysocki

PM / runtime: Fetch runtime PM callbacks using a macro

While fetching the proper runtime PM callback, we walk the hierarchy of
device's power domains, subsystems and drivers.

This is common for rpm_suspend(), rpm_idle() and rpm_resume(). Let's
clean up the code by using a macro that handles this.
Signed-off-by: default avatarUlf Hansson <ulf.hansson@linaro.org>
Signed-off-by: default avatarRafael J. Wysocki <rafael.j.wysocki@intel.com>
parent cfbf8d48
...@@ -13,6 +13,42 @@ ...@@ -13,6 +13,42 @@
#include <trace/events/rpm.h> #include <trace/events/rpm.h>
#include "power.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; \
})
static int (*rpm_get_suspend_cb(struct device *dev))(struct device *)
{
return RPM_GET_CALLBACK(dev, runtime_suspend);
}
static int (*rpm_get_resume_cb(struct device *dev))(struct device *)
{
return RPM_GET_CALLBACK(dev, runtime_resume);
}
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_resume(struct device *dev, int rpmflags);
static int rpm_suspend(struct device *dev, int rpmflags); static int rpm_suspend(struct device *dev, int rpmflags);
...@@ -310,19 +346,7 @@ static int rpm_idle(struct device *dev, int rpmflags) ...@@ -310,19 +346,7 @@ static int rpm_idle(struct device *dev, int rpmflags)
dev->power.idle_notification = true; dev->power.idle_notification = true;
if (dev->pm_domain) callback = rpm_get_idle_cb(dev);
callback = dev->pm_domain->ops.runtime_idle;
else if (dev->type && dev->type->pm)
callback = dev->type->pm->runtime_idle;
else if (dev->class && dev->class->pm)
callback = dev->class->pm->runtime_idle;
else if (dev->bus && dev->bus->pm)
callback = dev->bus->pm->runtime_idle;
else
callback = NULL;
if (!callback && dev->driver && dev->driver->pm)
callback = dev->driver->pm->runtime_idle;
if (callback) if (callback)
retval = __rpm_callback(callback, dev); retval = __rpm_callback(callback, dev);
...@@ -492,19 +516,7 @@ static int rpm_suspend(struct device *dev, int rpmflags) ...@@ -492,19 +516,7 @@ static int rpm_suspend(struct device *dev, int rpmflags)
__update_runtime_status(dev, RPM_SUSPENDING); __update_runtime_status(dev, RPM_SUSPENDING);
if (dev->pm_domain) callback = rpm_get_suspend_cb(dev);
callback = dev->pm_domain->ops.runtime_suspend;
else if (dev->type && dev->type->pm)
callback = dev->type->pm->runtime_suspend;
else if (dev->class && dev->class->pm)
callback = dev->class->pm->runtime_suspend;
else if (dev->bus && dev->bus->pm)
callback = dev->bus->pm->runtime_suspend;
else
callback = NULL;
if (!callback && dev->driver && dev->driver->pm)
callback = dev->driver->pm->runtime_suspend;
retval = rpm_callback(callback, dev); retval = rpm_callback(callback, dev);
if (retval) if (retval)
...@@ -724,19 +736,7 @@ static int rpm_resume(struct device *dev, int rpmflags) ...@@ -724,19 +736,7 @@ static int rpm_resume(struct device *dev, int rpmflags)
__update_runtime_status(dev, RPM_RESUMING); __update_runtime_status(dev, RPM_RESUMING);
if (dev->pm_domain) callback = rpm_get_resume_cb(dev);
callback = dev->pm_domain->ops.runtime_resume;
else if (dev->type && dev->type->pm)
callback = dev->type->pm->runtime_resume;
else if (dev->class && dev->class->pm)
callback = dev->class->pm->runtime_resume;
else if (dev->bus && dev->bus->pm)
callback = dev->bus->pm->runtime_resume;
else
callback = NULL;
if (!callback && dev->driver && dev->driver->pm)
callback = dev->driver->pm->runtime_resume;
retval = rpm_callback(callback, dev); retval = rpm_callback(callback, dev);
if (retval) { if (retval) {
......
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