When a thermal zone is in forced passive mode and temperature is above
passive trip point, processors are throttled to various states. However,
when user disables forced passive throttling, the processors could be
left in throttling state even when temperature is below passive trip
points.
This patch fixes the issue by always undo processor throttling when user
exits force passive mode. It is safe in that any subsequent thermal conditions
will still be handled according to trip point settings
Signed-off-by: Jacob Pan <jacob.jun.pan@xxxxxxxxxxxxxxx>
---
drivers/thermal/thermal_sys.c | 4 +++-
1 files changed, 3 insertions(+), 1 deletions(-)
diff --git a/drivers/thermal/thermal_sys.c b/drivers/thermal/thermal_sys.c
index 022bacb..ea867ff 100644
--- a/drivers/thermal/thermal_sys.c
+++ b/drivers/thermal/thermal_sys.c
@@ -250,10 +250,12 @@ passive_store(struct device *dev, struct device_attribute *attr,
mutex_lock(&thermal_list_lock);
list_for_each_entry(cdev, &thermal_cdev_list, node) {
if (!strncmp("Processor", cdev->type,
- sizeof("Processor")))
+ sizeof("Processor"))) {
thermal_zone_unbind_cooling_device(tz,
THERMAL_TRIPS_NONE,
cdev);
+ cdev->ops->set_cur_state(cdev, 0);
+ }
}
mutex_unlock(&thermal_list_lock);
tz->passive_delay = 0;
--
1.7.5.4
--
To unsubscribe from this list: send the line "unsubscribe linux-acpi" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
