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thermal: of-thermal: allow setting trip_temp on hardware

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In current of-thermal, the .set_trip_temp only support to
set trip_temp for SW. But some sensors support to set
trip_temp on hardware, so that can trigger interrupt,
shutdown or any other events.
This patch adds .set_trip_temp() callback in
thermal_zone_of_device_ops{}, so that the sensor device can
use it to set trip_temp on hardware.

Signed-off-by: Wei Ni <wni@nvidia.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
This commit is contained in:
Wei Ni 2016-03-29 18:29:17 +08:00 committed by Eduardo Valentin
parent d753b22d8b
commit c35095215a
2 changed files with 9 additions and 0 deletions
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8
drivers/thermal/of-thermal.c
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@ -331,6 +331,14 @@ static int of_thermal_set_trip_temp(struct thermal_zone_device *tz, int trip,
if (trip >= data->ntrips || trip < 0)
return -EDOM;
if (data->ops->set_trip_temp) {
int ret;
ret = data->ops->set_trip_temp(data->sensor_data, trip, temp);
if (ret)
return ret;
}
/* thermal framework should take care of data->mask & (1 << trip) */
data->trips[trip].temperature = temp;

1
include/linux/thermal.h
View file

@ -340,6 +340,7 @@ struct thermal_zone_of_device_ops {
int (*get_temp)(void *, int *);
int (*get_trend)(void *, long *);
int (*set_emul_temp)(void *, int);
int (*set_trip_temp)(void *, int, int);
};
/**