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drivers: thermal: of-thermal: Add support for getting trip temperature

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Add support for the sensor drivers using of-thermal interface to support
reading the trip temperature from the hardware using a callback. This
can be used in case, when the hardware works on a pre-configured
threshold different from the threshold set by software.

Change-Id: Ic5aaf1586b8dcbb3da0dd775718407c257b2064f
Signed-off-by: Ram Chandrasekar <rkumbako@codeaurora.org>
This commit is contained in:
Ram Chandrasekar 2018-02-06 17:12:04 -07:00
parent 7b5363ccd4
commit eb67e3af2c
2 changed files with 13 additions and 1 deletions
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11
drivers/thermal/of-thermal.c
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@ -430,7 +430,16 @@ static int of_thermal_get_trip_temp(struct thermal_zone_device *tz, int trip,
if (trip >= data->ntrips || trip < 0)
return -EDOM;
*temp = data->trips[trip].temperature;
if (data->senps && data->senps->ops->get_trip_temp) {
int ret;
ret = data->senps->ops->get_trip_temp(data->senps->sensor_data,
trip, temp);
if (ret)
return ret;
} else {
*temp = data->trips[trip].temperature;
}
return 0;
}

3
include/linux/thermal.h
View File

@ -389,6 +389,8 @@ struct thermal_genl_event {
* temperature.
* @set_trip_temp: a pointer to a function that sets the trip temperature on
* hardware.
* @get_trip_temp: a pointer to a function that gets the trip temperature on
* hardware.
*/
struct thermal_zone_of_device_ops {
int (*get_temp)(void *, int *);
@ -396,6 +398,7 @@ struct thermal_zone_of_device_ops {
int (*set_trips)(void *, int, int);
int (*set_emul_temp)(void *, int);
int (*set_trip_temp)(void *, int, int);
int (*get_trip_temp)(void *, int, int *);
};
/**