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Commit 335553ce authored by Zhang Rui's avatar Zhang Rui
Browse files

Merge branch 'eduardo-1' of .git into next

parents 4f89038f 837b26bb
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+55 −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)
{
@@ -1754,6 +1768,44 @@ void thermal_zone_device_unregister(struct thermal_zone_device *tz)
}
EXPORT_SYMBOL(thermal_zone_device_unregister);

/**
 * thermal_zone_get_zone_by_name() - search for a zone and returns its ref
 * @name: thermal zone name to fetch the temperature
 *
 * When only one zone is found with the passed name, returns a reference to it.
 *
 * Return: On success returns a reference to an unique thermal zone with
 * matching name equals to @name, an ERR_PTR otherwise (-EINVAL for invalid
 * paramenters, -ENODEV for not found and -EEXIST for multiple matches).
 */
struct thermal_zone_device *thermal_zone_get_zone_by_name(const char *name)
{
	struct thermal_zone_device *pos = NULL, *ref = ERR_PTR(-EINVAL);
	unsigned int found = 0;

	if (!name)
		goto exit;

	mutex_lock(&thermal_list_lock);
	list_for_each_entry(pos, &thermal_tz_list, node)
		if (!strnicmp(name, pos->type, THERMAL_NAME_LENGTH)) {
			found++;
			ref = pos;
		}
	mutex_unlock(&thermal_list_lock);

	/* nothing has been found, thus an error code for it */
	if (found == 0)
		ref = ERR_PTR(-ENODEV);
	else if (found > 1)
	/* Success only when an unique zone is found */
		ref = ERR_PTR(-EEXIST);

exit:
	return ref;
}
EXPORT_SYMBOL_GPL(thermal_zone_get_zone_by_name);

#ifdef CONFIG_NET
static struct genl_family thermal_event_genl_family = {
	.id = GENL_ID_GENERATE,
+2 −0
Original line number Diff line number Diff line
@@ -239,6 +239,8 @@ void thermal_zone_device_update(struct thermal_zone_device *);
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 *,