Commit ac5d9ecc authored by Andrzej Pietrasiewicz's avatar Andrzej Pietrasiewicz Committed by Daniel Lezcano
Browse files

thermal: Add mode helpers 



Prepare for making the drivers not access tzd's private members.

Signed-off-by: default avatarAndrzej Pietrasiewicz <andrzej.p@collabora.com>
Reviewed-by: default avatarBartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
[staticize thermal_zone_device_set_mode()]
Signed-off-by: default avatarkernel test robot <lkp@intel.com>
Signed-off-by: default avatarDaniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20200629122925.21729-7-andrzej.p@collabora.com
parent 1ee14820

drivers/thermal/thermal_core.c

+53 −0
Original line number Diff line number Diff line
@@ -459,6 +459,59 @@ static void thermal_zone_device_reset(struct thermal_zone_device *tz) 
	thermal_zone_device_init(tz);

}



static int thermal_zone_device_set_mode(struct thermal_zone_device *tz,

					enum thermal_device_mode mode)

{

	int ret = 0;



	mutex_lock(&tz->lock);



	/* do nothing if mode isn't changing */

	if (mode == tz->mode) {

		mutex_unlock(&tz->lock);



		return ret;

	}



	if (tz->ops->set_mode)

		ret = tz->ops->set_mode(tz, mode);



	if (!ret)

		tz->mode = mode;



	mutex_unlock(&tz->lock);



	thermal_zone_device_update(tz, THERMAL_EVENT_UNSPECIFIED);



	return ret;

}



int thermal_zone_device_enable(struct thermal_zone_device *tz)

{

	return thermal_zone_device_set_mode(tz, THERMAL_DEVICE_ENABLED);

}

EXPORT_SYMBOL_GPL(thermal_zone_device_enable);



int thermal_zone_device_disable(struct thermal_zone_device *tz)

{

	return thermal_zone_device_set_mode(tz, THERMAL_DEVICE_DISABLED);

}

EXPORT_SYMBOL_GPL(thermal_zone_device_disable);



int thermal_zone_device_is_enabled(struct thermal_zone_device *tz)

{

	enum thermal_device_mode mode;



	mutex_lock(&tz->lock);



	mode = tz->mode;



	mutex_unlock(&tz->lock);



	return mode == THERMAL_DEVICE_ENABLED;

}

EXPORT_SYMBOL_GPL(thermal_zone_device_is_enabled);



void thermal_zone_device_update(struct thermal_zone_device *tz,

				enum thermal_notify_event event)

{

include/linux/thermal.h

+13 −0
Original line number Diff line number Diff line
@@ -416,6 +416,9 @@ int thermal_zone_get_offset(struct thermal_zone_device *tz); 


void thermal_cdev_update(struct thermal_cooling_device *);

void thermal_notify_framework(struct thermal_zone_device *, int);

int thermal_zone_device_enable(struct thermal_zone_device *tz);

int thermal_zone_device_disable(struct thermal_zone_device *tz);

int thermal_zone_device_is_enabled(struct thermal_zone_device *tz);

#else

static inline struct thermal_zone_device *thermal_zone_device_register(

	const char *type, int trips, int mask, void *devdata,
@@ -463,6 +466,16 @@ static inline void thermal_cdev_update(struct thermal_cooling_device *cdev) 
static inline void thermal_notify_framework(struct thermal_zone_device *tz,

	int trip)

{ }



static inline int thermal_zone_device_enable(struct thermal_zone_device *tz)

{ return -ENODEV; }



static inline int thermal_zone_device_disable(struct thermal_zone_device *tz)

{ return -ENODEV; }



static inline int

thermal_zone_device_is_enabled(struct thermal_zone_device *tz)

{ return -ENODEV; }

#endif /* CONFIG_THERMAL */



#endif /* __THERMAL_H__ */

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