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thermal: core: Add function to walk trips under zone lock

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Add a wrapper around for_each_thermal_trip(), called
thermal_zone_for_each_trip(), that will invoke the former under the
thermal zone lock and pass its return value to the caller.

Two drivers will be modified subsequently to use this new function.

No functional impact.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Daniel Lezcano <daniel.lezcano@linaro.org>
This commit is contained in:
Rafael J. Wysocki 2023-10-03 15:17:24 +02:00
parent d069ed6b75
commit a56cc0a833
2 changed files with 17 additions and 0 deletions
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14
drivers/thermal/thermal_trip.c
View File

@ -27,6 +27,20 @@ int for_each_thermal_trip(struct thermal_zone_device *tz,
}
EXPORT_SYMBOL_GPL(for_each_thermal_trip);
int thermal_zone_for_each_trip(struct thermal_zone_device *tz,
int (*cb)(struct thermal_trip *, void *),
void *data)
{
int ret;
mutex_lock(&tz->lock);
ret = for_each_thermal_trip(tz, cb, data);
mutex_unlock(&tz->lock);
return ret;
}
EXPORT_SYMBOL_GPL(thermal_zone_for_each_trip);
int thermal_zone_get_num_trips(struct thermal_zone_device *tz)
{
return tz->num_trips;

3
include/linux/thermal.h
View File

@ -286,6 +286,9 @@ int thermal_zone_set_trip(struct thermal_zone_device *tz, int trip_id,
int for_each_thermal_trip(struct thermal_zone_device *tz,
int (*cb)(struct thermal_trip *, void *),
void *data);
int thermal_zone_for_each_trip(struct thermal_zone_device *tz,
int (*cb)(struct thermal_trip *, void *),
void *data);
int thermal_zone_get_num_trips(struct thermal_zone_device *tz);
int thermal_zone_get_crit_temp(struct thermal_zone_device *tz, int *temp);