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OpenCloudOS-Kernel
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Merge branch 'fixes' of .git into next

This commit is contained in:
Zhang Rui 2013-08-15 15:49:30 +08:00
parent 036e8a13b8 ca56caa021
commit f61d5b4d52
1 changed files with 21 additions and 11 deletions
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32
drivers/thermal/step_wise.c
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@ -51,44 +51,51 @@ static unsigned long get_target_state(struct thermal_instance *instance,
{
struct thermal_cooling_device *cdev = instance->cdev;
unsigned long cur_state;
unsigned long next_target;
/*
* We keep this instance the way it is by default.
* Otherwise, we use the current state of the
* cdev in use to determine the next_target.
*/
cdev->ops->get_cur_state(cdev, &cur_state);
next_target = instance->target;
switch (trend) {
case THERMAL_TREND_RAISING:
if (throttle) {
cur_state = cur_state < instance->upper ?
next_target = cur_state < instance->upper ?
(cur_state + 1) : instance->upper;
if (cur_state < instance->lower)
cur_state = instance->lower;
if (next_target < instance->lower)
next_target = instance->lower;
}
break;
case THERMAL_TREND_RAISE_FULL:
if (throttle)
cur_state = instance->upper;
next_target = instance->upper;
break;
case THERMAL_TREND_DROPPING:
if (cur_state == instance->lower) {
if (!throttle)
cur_state = -1;
next_target = THERMAL_NO_TARGET;
} else {
cur_state -= 1;
if (cur_state > instance->upper)
cur_state = instance->upper;
next_target = cur_state - 1;
if (next_target > instance->upper)
next_target = instance->upper;
}
break;
case THERMAL_TREND_DROP_FULL:
if (cur_state == instance->lower) {
if (!throttle)
cur_state = -1;
next_target = THERMAL_NO_TARGET;
} else
cur_state = instance->lower;
next_target = instance->lower;
break;
default:
break;
}
return cur_state;
return next_target;
}
static void update_passive_instance(struct thermal_zone_device *tz,
@ -133,6 +140,9 @@ static void thermal_zone_trip_update(struct thermal_zone_device *tz, int trip)
old_target = instance->target;
instance->target = get_target_state(instance, trend, throttle);
if (old_target == instance->target)
continue;
/* Activate a passive thermal instance */
if (old_target == THERMAL_NO_TARGET &&
instance->target != THERMAL_NO_TARGET)