4.9-stable review patch. If anyone has any objections, please let me know.
------------------
From: Anson Huang Anson.Huang@nxp.com
[ Upstream commit 152395fd03d4ce1e535a75cdbf58105e50587611 ]
When thermal zone is in passive mode, disabling its mode from sysfs is NOT taking effect at all, it is still polling the temperature of the disabled thermal zone and handling all thermal trips, it makes user confused. The disabling operation should disable the thermal zone behavior completely, for both active and passive mode, this patch clears the passive_delay when thermal zone is disabled and restores it when it is enabled.
Signed-off-by: Anson Huang Anson.Huang@nxp.com Signed-off-by: Eduardo Valentin edubezval@gmail.com Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/thermal/of-thermal.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-)
--- a/drivers/thermal/of-thermal.c +++ b/drivers/thermal/of-thermal.c @@ -278,10 +278,13 @@ static int of_thermal_set_mode(struct th
mutex_lock(&tz->lock);
- if (mode == THERMAL_DEVICE_ENABLED) + if (mode == THERMAL_DEVICE_ENABLED) { tz->polling_delay = data->polling_delay; - else + tz->passive_delay = data->passive_delay; + } else { tz->polling_delay = 0; + tz->passive_delay = 0; + }
mutex_unlock(&tz->lock);