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

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>

diff --git a/drivers/thermal/of-thermal.c b/drivers/thermal/of-thermal.c
index 977a8307fbb1a4e0d66cb1c619834472bfe0d1ea..4f28165592056d5ec90309c5bff737f5ba66ea0b 100644 (file)
--- a/drivers/thermal/of-thermal.c
+++ b/drivers/thermal/of-thermal.c
@@ -260,10 +260,13 @@ 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);