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Thermal control fix for 7.3-rc5

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Fix a step-wise thermal governor issue that causes thermal mitigation to
 contiune forever after the temperature has dropped below the trip point
 threshold in some cases (Manaf Meethalavalappu Pallikunhi).
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Merge tag 'thermal-7.3-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull thermal control fix from Rafael Wysocki:
 "Fix a step-wise thermal governor issue that causes thermal mitigation
  to contiune forever after the temperature has dropped below the trip
  point threshold in some cases (Manaf Meethalavalappu Pallikunhi)"

* tag 'thermal-7.3-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  thermal: gov_step_wise: Fix stale mitigation vote with non-zero lower bounds
This commit is contained in:
Linus Torvalds 2026-09-25 10:11:15 -07:00
commit b9dbb658e2
1 changed files with 4 additions and 6 deletions
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10
drivers/thermal/gov_step_wise.c
View File

@ -65,14 +65,12 @@ static unsigned long get_target_state(struct thermal_instance *instance,
min(instance->lower + 1, instance->upper),
instance->upper);
} else if (trend == THERMAL_TREND_DROPPING) {
if (cur_state <= instance->lower)
return THERMAL_NO_TARGET;
/*
* If 'throttle' is false, no mitigation is necessary, so
* request the lower state for this instance.
* If 'throttle' is false, no mitigation is necessary and
* passive polling is already deactivated, so clear this
* instance state by returning THERMAL_NO_TARGET.
*/
return instance->lower;
return THERMAL_NO_TARGET;
}
return instance->target;