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

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[ 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>
This commit is contained in:
Anson Huang 2018-07-31 00:56:49 +08:00 • committed by Greg Kroah-Hartman
parent cd3d646375
commit 644c07d018
1 changed files with 5 additions and 2 deletions
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7
drivers/thermal/of-thermal.c
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@ -284,10 +284,13 @@ 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);