* Add a state variable to track if trip point is triggered.
* Enable trip events only when the state of the tirp point changes.
* Implement the get\set callbacks for trip state.
Change-Id: I1bd6a7b0e5e520d8ee678b83111d23cada7a580c
Signed-off-by: Srikar Srimath Tirumala <srikars@xxxxxxxxxx>
---
drivers/thermal/of-thermal.c | 43 +++++++++++++++++++++++++++++++++++++++++++
1 file changed, 43 insertions(+)
diff --git a/drivers/thermal/of-thermal.c b/drivers/thermal/of-thermal.c
index 49ac23d..f6d9d3d 100644
--- a/drivers/thermal/of-thermal.c
+++ b/drivers/thermal/of-thermal.c
@@ -379,6 +379,43 @@ static int of_thermal_get_crit_temp(struct thermal_zone_device *tz,
return -EINVAL;
}
+static bool of_thermal_enb_temp_notify(struct thermal_zone_device *tz, int trip)
+{
+ bool ret = true;
+ struct __thermal_zone *data = tz->devdata;
+
+ if (trip >= data->ntrips || trip < 0)
+ ret = false;
+
+ return ret;
+}
+
+static int of_thermal_get_trip_state(struct thermal_zone_device *tz, int trip,
+ enum thermal_trip_state *state)
+{
+ struct __thermal_zone *data = tz->devdata;
+
+ if (trip >= data->ntrips || trip < 0)
+ return -EDOM;
+
+ *state = data->trips[trip].state;
+
+ return 0;
+}
+
+static int of_thermal_set_trip_state(struct thermal_zone_device *tz, int trip,
+ enum thermal_trip_state state)
+{
+ struct __thermal_zone *data = tz->devdata;
+
+ if (trip >= data->ntrips || trip < 0)
+ return -EDOM;
+
+ data->trips[trip].state = state;
+
+ return 0;
+}
+
static struct thermal_zone_device_ops of_thermal_ops = {
.get_mode = of_thermal_get_mode,
.set_mode = of_thermal_set_mode,
@@ -392,6 +429,10 @@ static struct thermal_zone_device_ops of_thermal_ops = {
.bind = of_thermal_bind,
.unbind = of_thermal_unbind,
+
+ .get_trip_state = of_thermal_get_trip_state,
+ .set_trip_state = of_thermal_set_trip_state,
+ .enb_temp_notify = of_thermal_enb_temp_notify,
};
/*** sensor API ***/
@@ -782,6 +823,8 @@ static int thermal_of_populate_trip(struct device_node *np,
return ret;
}
+ trip->state = THERMAL_TRIP_NOT_TRIPPED;
+
/* Required for cooling map matching */
trip->np = np;
of_node_get(np);
--
2.1.4
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