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thermal: of: implement .set_trips for device tree thermal zones 

This patch implements .set_trips for device tree thermal zones.
As the hardware-tracked trip points is supported by thermal core patch[0].

patch[0]
"thermal: Add support for hardware-tracked trip points".

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Caesar Wang <wxt@rock-chips.com>
Cc: Zhang Rui <rui.zhang@intel.com>
Cc: Eduardo Valentin <edubezval@gmail.com>
Reviewed-by: Javi Merino <javi.merino@arm.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
hifive-unleashed-5.1
Sascha Hauer 2016-06-22 16:42:02 +08:00 committed by Zhang Rui
parent 060c034a97
commit 826386e731
2 changed files with 23 additions and 0 deletions
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19
drivers/thermal/of-thermal.c
View File

@ -101,6 +101,17 @@ static int of_thermal_get_temp(struct thermal_zone_device *tz,
return data->ops->get_temp(data->sensor_data, temp);
}
static int of_thermal_set_trips(struct thermal_zone_device *tz,
int low, int high)
{
struct __thermal_zone *data = tz->devdata;
if (!data->ops || !data->ops->set_trips)
return -EINVAL;
return data->ops->set_trips(data->sensor_data, low, high);
}
/**
* of_thermal_get_ntrips - function to export number of available trip
* points.
@ -427,6 +438,14 @@ thermal_zone_of_add_sensor(struct device_node *zone,
tzd->ops->get_temp = of_thermal_get_temp;
tzd->ops->get_trend = of_thermal_get_trend;
/*
* The thermal zone core will calculate the window if they have set the
* optional set_trips pointer.
*/
if (ops->set_trips)
tzd->ops->set_trips = of_thermal_set_trips;
tzd->ops->set_emul_temp = of_thermal_set_emul_temp;
mutex_unlock(&tzd->lock);

4
include/linux/thermal.h
View File

@ -340,6 +340,9 @@ struct thermal_genl_event {
*
* Optional:
* @get_trend: a pointer to a function that reads the sensor temperature trend.
* @set_trips: a pointer to a function that sets a temperature window. When
* this window is left the driver must inform the thermal core via
* thermal_zone_device_update.
* @set_emul_temp: a pointer to a function that sets sensor emulated
* temperature.
* @set_trip_temp: a pointer to a function that sets the trip temperature on
@ -348,6 +351,7 @@ struct thermal_genl_event {
struct thermal_zone_of_device_ops {
int (*get_temp)(void *, int *);
int (*get_trend)(void *, long *);
int (*set_trips)(void *, int, int);
int (*set_emul_temp)(void *, int);
int (*set_trip_temp)(void *, int, int);
};