diff --git a/drivers/acpi/thermal.c b/drivers/acpi/thermal.c
index f14e68266ccd..312730f8272e 100644
--- a/drivers/acpi/thermal.c
+++ b/drivers/acpi/thermal.c
@@ -492,7 +492,7 @@ static int thermal_get_temp(struct thermal_zone_device *thermal, int *temp)
 }
 
 static int thermal_get_trend(struct thermal_zone_device *thermal,
-			     struct thermal_trip *trip,
+			     const struct thermal_trip *trip,
 			     enum thermal_trend *trend)
 {
 	struct acpi_thermal *tz = thermal_zone_device_priv(thermal);
diff --git a/drivers/thermal/ti-soc-thermal/ti-thermal-common.c b/drivers/thermal/ti-soc-thermal/ti-thermal-common.c
index 6ba2613627e1..0cf0826b805a 100644
--- a/drivers/thermal/ti-soc-thermal/ti-thermal-common.c
+++ b/drivers/thermal/ti-soc-thermal/ti-thermal-common.c
@@ -110,7 +110,8 @@ static inline int __ti_thermal_get_temp(struct thermal_zone_device *tz, int *tem
 }
 
 static int __ti_thermal_get_trend(struct thermal_zone_device *tz,
-				  struct thermal_trip *trip, enum thermal_trend *trend)
+				  const struct thermal_trip *trip,
+				  enum thermal_trend *trend)
 {
 	struct ti_thermal_data *data = thermal_zone_device_priv(tz);
 	struct ti_bandgap *bgp;
diff --git a/include/linux/thermal.h b/include/linux/thermal.h
index c99440aac1a1..a5ae4af955ff 100644
--- a/include/linux/thermal.h
+++ b/include/linux/thermal.h
@@ -80,8 +80,8 @@ struct thermal_zone_device_ops {
 	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);
-	int (*get_trend) (struct thermal_zone_device *, struct thermal_trip *,
-			  enum thermal_trend *);
+	int (*get_trend) (struct thermal_zone_device *,
+			  const struct thermal_trip *, enum thermal_trend *);
 	void (*hot)(struct thermal_zone_device *);
 	void (*critical)(struct thermal_zone_device *);
 };