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Commit 184a4bf6 authored by Lukasz Majewski's avatar Lukasz Majewski Committed by Eduardo Valentin
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thermal: of: Extend current of-thermal.c code to allow setting emulated temp 



Before this change it was only possible to set get_temp() and get_trend()
methods to be used in the common code handling passing parameters via
device tree to "cpu-thermal" CPU thermal zone device.

Now it is possible to also set emulated value of temperature for debug
purposes.

Signed-off-by: default avatarLukasz Majewski <l.majewski@samsung.com>
Acked-by: default avatarEduardo Valentin <edubezval@gmail.com>
Signed-off-by: default avatarEduardo Valentin <edubezval@gmail.com>
parent ce8be778

drivers/thermal/of-thermal.c

+24 −0
Original line number Diff line number Diff line
@@ -161,6 +161,28 @@ of_thermal_get_trip_points(struct thermal_zone_device *tz) 
}

EXPORT_SYMBOL_GPL(of_thermal_get_trip_points);



/**

 * of_thermal_set_emul_temp - function to set emulated temperature

 *

 * @tz:	pointer to a thermal zone

 * @temp:	temperature to set

 *

 * This function gives the ability to set emulated value of temperature,

 * which is handy for debugging

 *

 * Return: zero on success, error code otherwise

 */

static int of_thermal_set_emul_temp(struct thermal_zone_device *tz,

				    unsigned long temp)

{

	struct __thermal_zone *data = tz->devdata;



	if (!data->ops || !data->ops->set_emul_temp)

		return -EINVAL;



	return data->ops->set_emul_temp(data->sensor_data, temp);

}



static int of_thermal_get_trend(struct thermal_zone_device *tz, int trip,

				enum thermal_trend *trend)

{
@@ -392,6 +414,7 @@ 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;

	tzd->ops->set_emul_temp = of_thermal_set_emul_temp;

	mutex_unlock(&tzd->lock);



	return tzd;
@@ -520,6 +543,7 @@ void thermal_zone_of_sensor_unregister(struct device *dev, 
	mutex_lock(&tzd->lock);

	tzd->ops->get_temp = NULL;

	tzd->ops->get_trend = NULL;

	tzd->ops->set_emul_temp = NULL;



	tz->ops = NULL;

	tz->sensor_data = NULL;

include/linux/thermal.h

+3 −0
Original line number Diff line number Diff line
@@ -297,10 +297,13 @@ struct thermal_genl_event { 
 *

 * Optional:

 * @get_trend: a pointer to a function that reads the sensor temperature trend.

 * @set_emul_temp: a pointer to a function that sets sensor emulated

 *		   temperature.

 */

struct thermal_zone_of_device_ops {

	int (*get_temp)(void *, long *);

	int (*get_trend)(void *, long *);

	int (*set_emul_temp)(void *, unsigned long);

};



/**