Thermal: set upper and lower limits

set upper and lower limits when binding
a thermal cooling device to a thermal zone device.

Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Reviewed-by: Rafael J. Wysocki <rjw@sisk.pl>
Reviewed-by: Eduardo Valentin <eduardo.valentin@ti.com>

1 files changed, 4 insertions, 1 deletions

diff --git a/include/linux/thermal.h b/include/linux/thermal.h
index 4b94a61955df..5946a3b90bb2 100644
--- a/include/linux/thermal.h
+++ b/include/linux/thermal.h
@@ -75,6 +75,8 @@ struct thermal_cooling_device_ops {
         int (*set_cur_state) (struct thermal_cooling_device *, unsigned long);
 };
 
+#define THERMAL_NO_LIMIT -1UL /* no upper/lower limit requirement */
+
 #define THERMAL_TRIPS_NONE -1
 #define THERMAL_MAX_TRIPS 12
 #define THERMAL_NAME_LENGTH 20
@@ -157,7 +159,8 @@ struct thermal_zone_device *thermal_zone_device_register(const char *, int, int,
 void thermal_zone_device_unregister(struct thermal_zone_device *);
 
 int thermal_zone_bind_cooling_device(struct thermal_zone_device *, int,
-                                     struct thermal_cooling_device *);
+                                     struct thermal_cooling_device *,
+                                     unsigned long, unsigned long);
 int thermal_zone_unbind_cooling_device(struct thermal_zone_device *, int,
                                        struct thermal_cooling_device *);
 void thermal_zone_device_update(struct thermal_zone_device *);