A-Team_Digital_Solutions/android_kernel_motorola_sm6375
Watch
2
0
Fork
You've already forked android_kernel_motorola_sm6375
 0
mirror of https://github.com/BobTheBlinker/android_kernel_motorola_sm6375.git synced 2026-10-28 18:51:56 -04:00
Code Issues Projects Releases Packages Wiki Activity

Driver core: add suspend() and resume() to struct device_type

Browse source 
Driver core: add suspend() and resume() to struct device_type

In cases when there are devices of different types in the same class
we can't use class's implementation of suspend and resume methods and
we need to add them to struct device_type instead.

Also fix error handling in resume code (we should not try to call
class's resume method iof bus's resume method for the device failed.

Signed-off-by: Dmitry Torokhov <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
This commit is contained in:
Dmitry Torokhov 2007-04-03 01:08:40 -04:00 • committed by Greg Kroah-Hartman
commit f89cbc399e
3 changed files with 26 additions and 1 deletions
Download patch file Download diff file Expand all files Collapse all files

13
drivers/base/power/resume.c
View file

@ -26,7 +26,9 @@ int resume_device(struct device * dev)
TRACE_DEVICE(dev);
TRACE_RESUME(0);
down(&dev->sem);
if (dev->power.pm_parent
&& dev->power.pm_parent->power.power_state.event) {
dev_err(dev, "PM: resume from %d, parent %s still %d\n",
@ -34,15 +36,24 @@ int resume_device(struct device * dev)
dev->power.pm_parent->bus_id,
dev->power.pm_parent->power.power_state.event);
}
if (dev->bus && dev->bus->resume) {
dev_dbg(dev,"resuming\n");
error = dev->bus->resume(dev);
}
if (dev->class && dev->class->resume) {
if (!error && dev->type && dev->type->resume) {
dev_dbg(dev,"resuming\n");
error = dev->type->resume(dev);
}
if (!error && dev->class && dev->class->resume) {
dev_dbg(dev,"class resume\n");
error = dev->class->resume(dev);
}
up(&dev->sem);
TRACE_RESUME(error);
return error;
}

12
drivers/base/power/suspend.c
View file

@ -78,6 +78,18 @@ int suspend_device(struct device * dev, pm_message_t state)
suspend_report_result(dev->class->suspend, error);
}
if (!error && dev->type && dev->type->suspend && !dev->power.power_state.event) {
dev_dbg(dev, "%s%s\n",
suspend_verb(state.event),
((state.event == PM_EVENT_SUSPEND)
&& device_may_wakeup(dev))
? ", may wakeup"
: ""
);
error = dev->type->suspend(dev, state);
suspend_report_result(dev->type->suspend, error);
}
if (!error && dev->bus && dev->bus->suspend && !dev->power.power_state.event) {
dev_dbg(dev, "%s%s\n",
suspend_verb(state.event),