thermal: Use thermal_zone_device_type() accessor

Replace the accesses to 'tz->type' by its accessor version in order to
self-encapsulate the thermal_zone_device structure.
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Reviewed-by: Ido Schimmel <idosch@nvidia.com> #mlxsw
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> #MediaTek LVTS
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

drivers/net/ethernet/mellanox/mlxsw/core_thermal.c

@@ -177,7 +177,7 @@ mlxsw_thermal_module_trips_update(struct device *dev, struct mlxsw_core *core,
 
 	if (crit_temp > emerg_temp) {
 		dev_warn(dev, "%s : Critical threshold %d is above emergency threshold %d\n",
-			 tz->tzdev->type, crit_temp, emerg_temp);
+			 thermal_zone_device_type(tz->tzdev), crit_temp, emerg_temp);
 		return 0;
 	}
 

drivers/thermal/mediatek/lvts_thermal.c

@@ -305,7 +305,8 @@ static int lvts_set_trips(struct thermal_zone_device *tz, int low, int high)
 	 * 14-0 : Raw temperature for threshold
 	 */
 	if (low != -INT_MAX) {
-		pr_debug("%s: Setting low limit temperature interrupt: %d\n", tz->type, low);
+		pr_debug("%s: Setting low limit temperature interrupt: %d\n",
+			 thermal_zone_device_type(tz), low);
 		writel(raw_low, LVTS_H2NTHRE(base));
 	}
 
@@ -318,7 +319,8 @@ static int lvts_set_trips(struct thermal_zone_device *tz, int low, int high)
 	 *
 	 * 14-0 : Raw temperature for threshold
 	 */
-	pr_debug("%s: Setting high limit temperature interrupt: %d\n", tz->type, high);
+	pr_debug("%s: Setting high limit temperature interrupt: %d\n",
+		 thermal_zone_device_type(tz), high);
 	writel(raw_high, LVTS_HTHRE(base));
 
 	return 0;

drivers/thermal/ti-soc-thermal/ti-thermal-common.c

@@ -44,7 +44,7 @@ static void ti_thermal_work(struct work_struct *work)
 	thermal_zone_device_update(data->ti_thermal, THERMAL_EVENT_UNSPECIFIED);
 
 	dev_dbg(data->bgp->dev, "updated thermal zone %s\n",
-		data->ti_thermal->type);
+		thermal_zone_device_type(data->ti_thermal));
 }
 
 /**