thermal: core: Drop unused .get_trip_*() callbacks

After recent changes in the ACPI thermal driver and in the Intel DTS
IOSF thermal driver, all thermal zone drivers are expected to use trip
tables for initialization and none of them should implement
.get_trip_type(), .get_trip_temp() or .get_trip_hyst() callbacks, so
drop these callbacks entirely from the core.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

Author: rafaeljw

drivers/thermal/thermal_core.c

@@ -1266,7 +1266,7 @@ thermal_zone_device_register_with_trips(const char *type, struct thermal_trip *t
 		return ERR_PTR(-EINVAL);
 	}
 
-	if (num_trips > 0 && (!ops->get_trip_type || !ops->get_trip_temp) && !trips)
+	if (num_trips > 0 && !trips)
 		return ERR_PTR(-EINVAL);
 
 	if (!thermal_class)

drivers/thermal/thermal_trip.c

@@ -101,29 +101,11 @@ void __thermal_zone_set_trips(struct thermal_zone_device *tz)
 int __thermal_zone_get_trip(struct thermal_zone_device *tz, int trip_id,
 			    struct thermal_trip *trip)
 {
-	int ret;
-
-	if (!tz || trip_id < 0 || trip_id >= tz->num_trips || !trip)
+	if (!tz || !tz->trips || trip_id < 0 || trip_id >= tz->num_trips || !trip)
 		return -EINVAL;
 
-	if (tz->trips) {
-		*trip = tz->trips[trip_id];
-		return 0;
-	}
-
-	if (tz->ops->get_trip_hyst) {
-		ret = tz->ops->get_trip_hyst(tz, trip_id, &trip->hysteresis);
-		if (ret)
-			return ret;
-	} else {
-		trip->hysteresis = 0;
-	}
-
-	ret = tz->ops->get_trip_temp(tz, trip_id, &trip->temperature);
-	if (ret)
-		return ret;
-
-	return tz->ops->get_trip_type(tz, trip_id, &trip->type);
+	*trip = tz->trips[trip_id];
+	return 0;
 }
 EXPORT_SYMBOL_GPL(__thermal_zone_get_trip);
 

include/linux/thermal.h

@@ -62,11 +62,7 @@ struct thermal_zone_device_ops {
 	int (*set_trips) (struct thermal_zone_device *, int, int);
 	int (*change_mode) (struct thermal_zone_device *,
 		enum thermal_device_mode);
-	int (*get_trip_type) (struct thermal_zone_device *, int,
-		enum thermal_trip_type *);
-	int (*get_trip_temp) (struct thermal_zone_device *, int, int *);
 	int (*set_trip_temp) (struct thermal_zone_device *, int, int);
-	int (*get_trip_hyst) (struct thermal_zone_device *, int, int *);
 	int (*set_trip_hyst) (struct thermal_zone_device *, int, int);
 	int (*get_crit_temp) (struct thermal_zone_device *, int *);
 	int (*set_emul_temp) (struct thermal_zone_device *, int);