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@xxxxxxxxx>
---
drivers/thermal/thermal_sys.c | 18 ++++++++++++++++++
include/linux/thermal.h | 1 +
2 files changed, 19 insertions(+)
diff --git a/drivers/thermal/thermal_sys.c b/drivers/thermal/thermal_sys.c
index cde613b..4f77d89 100644
--- a/drivers/thermal/thermal_sys.c
+++ b/drivers/thermal/thermal_sys.c
@@ -1372,6 +1372,24 @@ 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 2bd9158..807f214 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 *);
--
1.7.9.5
--
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