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Commit 826386e7 authored by Sascha Hauer's avatar Sascha Hauer Committed by Zhang Rui
Browse files

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: default avatarSascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: default avatarCaesar Wang <wxt@rock-chips.com>
Cc: Zhang Rui <rui.zhang@intel.com>
Cc: Eduardo Valentin <edubezval@gmail.com>
Reviewed-by: default avatarJavi Merino <javi.merino@arm.com>
Signed-off-by: default avatarEduardo Valentin <edubezval@gmail.com>
Signed-off-by: default avatarZhang Rui <rui.zhang@intel.com>
parent 060c034a

drivers/thermal/of-thermal.c

+19 −0
Original line number Diff line number Diff line
@@ -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);

include/linux/thermal.h

+4 −0
Original line number Diff line number Diff line
@@ -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);

};