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thermal: of-thermal: disable passive polling when thermal zone is disabled 

[ Upstream commit 152395fd03 ]

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>
pull/10/head
Anson Huang 2018-07-31 00:56:49 +08:00 committed by Greg Kroah-Hartman
parent 308206bd27
commit 083be6fbfd
1 changed files with 5 additions and 2 deletions
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7
drivers/thermal/of-thermal.c
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@ -278,10 +278,13 @@ static int of_thermal_set_mode(struct thermal_zone_device *tz,
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);