diff options
| author | Durgadoss R <durgadoss.r@intel.com> | 2012-09-18 11:05:05 +0530 |
|---|---|---|
| committer | Zhang Rui <rui.zhang@intel.com> | 2012-11-05 14:00:08 +0800 |
| commit | f2b4caafd4aa64c9438b0a94af78b127228e6905 (patch) | |
| tree | 164004dabe45f3cf1d2c4575258e23c3907636fe | |
| parent | 0c01ebbfd3caf1dc132e0d93c8e7e9f742839d94 (diff) | |
| download | linux-f2b4caafd4aa64c9438b0a94af78b127228e6905.tar.bz2 | |
Thermal: Add a notification API
This patch adds a notification API which the sensor drivers'
can use to notify the framework. The framework then takes
care of the throttling according to the configured policy.
Signed-off-by: Durgadoss R <durgadoss.r@intel.com>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
| -rw-r--r-- | drivers/thermal/thermal_sys.c | 18 | ||||
| -rw-r--r-- | include/linux/thermal.h | 1 |
2 files changed, 19 insertions, 0 deletions
diff --git a/drivers/thermal/thermal_sys.c b/drivers/thermal/thermal_sys.c index 64f3e9735316..a69f24c4414a 100644 --- a/drivers/thermal/thermal_sys.c +++ b/drivers/thermal/thermal_sys.c @@ -1369,6 +1369,24 @@ void thermal_cdev_update(struct thermal_cooling_device *cdev) EXPORT_SYMBOL(thermal_cdev_update); /** + * notify_thermal_framework - Sensor drivers use this API to notify framework + * @tz: thermal zone device + * @trip: indicates which trip point has been crossed + * + * This function handles the trip events from sensor drivers. It starts + * throttling the cooling devices according to the policy configured. + * For CRITICAL and HOT trip points, this notifies the respective drivers, + * and does actual throttling for other trip points i.e ACTIVE and PASSIVE. + * The throttling policy is based on the configured platform data; if no + * platform data is provided, this uses the step_wise throttling policy. + */ +void notify_thermal_framework(struct thermal_zone_device *tz, int trip) +{ + handle_thermal_trip(tz, trip); +} +EXPORT_SYMBOL(notify_thermal_framework); + +/** * create_trip_attrs - create attributes for trip points * @tz: the thermal zone device * @mask: Writeable trip point bitmap. diff --git a/include/linux/thermal.h b/include/linux/thermal.h index 2bd915841818..807f2146fe35 100644 --- a/include/linux/thermal.h +++ b/include/linux/thermal.h @@ -232,6 +232,7 @@ int get_tz_trend(struct thermal_zone_device *, int); struct thermal_instance *get_thermal_instance(struct thermal_zone_device *, struct thermal_cooling_device *, int); void thermal_cdev_update(struct thermal_cooling_device *); +void notify_thermal_framework(struct thermal_zone_device *, int); int thermal_register_governor(struct thermal_governor *); void thermal_unregister_governor(struct thermal_governor *); |