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Commit 837b26bb authored by Eduardo Valentin's avatar Eduardo Valentin Committed by Zhang Rui
Browse files

thermal: expose thermal_zone_get_temp API 



This patch exports the thermal_zone_get_temp API so that driver
writers can fetch temperature of thermal zones managed by other
drivers.

Acked-by: default avatarDurgadoss R <durgadoss.r@intel.com>
Signed-off-by: default avatarEduardo Valentin <eduardo.valentin@ti.com>
Signed-off-by: default avatarZhang Rui <rui.zhang@intel.com>
parent 63c4d919

drivers/thermal/thermal_core.c

+17 −3
Original line number Diff line number Diff line
@@ -369,16 +369,28 @@ static void handle_thermal_trip(struct thermal_zone_device *tz, int trip) 
	monitor_thermal_zone(tz);

}



static int thermal_zone_get_temp(struct thermal_zone_device *tz,

				unsigned long *temp)

/**

 * thermal_zone_get_temp() - returns its the temperature of thermal zone

 * @tz: a valid pointer to a struct thermal_zone_device

 * @temp: a valid pointer to where to store the resulting temperature.

 *

 * When a valid thermal zone reference is passed, it will fetch its

 * temperature and fill @temp.

 *

 * Return: On success returns 0, an error code otherwise

 */

int thermal_zone_get_temp(struct thermal_zone_device *tz, unsigned long *temp)

{

	int ret = 0;

	int ret = -EINVAL;

#ifdef CONFIG_THERMAL_EMULATION

	int count;

	unsigned long crit_temp = -1UL;

	enum thermal_trip_type type;

#endif



	if (IS_ERR_OR_NULL(tz))

		goto exit;



	mutex_lock(&tz->lock);



	ret = tz->ops->get_temp(tz, temp);
@@ -402,8 +414,10 @@ static int thermal_zone_get_temp(struct thermal_zone_device *tz, 
skip_emul:

#endif

	mutex_unlock(&tz->lock);

exit:

	return ret;

}

EXPORT_SYMBOL_GPL(thermal_zone_get_temp);



static void update_temperature(struct thermal_zone_device *tz)

{

include/linux/thermal.h

+1 −0
Original line number Diff line number Diff line
@@ -240,6 +240,7 @@ struct thermal_cooling_device *thermal_cooling_device_register(char *, void *, 
		const struct thermal_cooling_device_ops *);

void thermal_cooling_device_unregister(struct thermal_cooling_device *);

struct thermal_zone_device *thermal_zone_get_zone_by_name(const char *name);

int thermal_zone_get_temp(struct thermal_zone_device *tz, unsigned long *temp);



int get_tz_trend(struct thermal_zone_device *, int);

struct thermal_instance *get_thermal_instance(struct thermal_zone_device *,