aboutsummaryrefslogtreecommitdiff
diff options
context:
space:
mode:
authorLukasz Majewski <l.majewski@samsung.com>2014-12-08 18:04:20 +0100
committerKevin Hilman <khilman@linaro.org>2015-06-05 15:42:30 -0700
commitdb264dfac75f33b68073d9d9e3d78666aa90d7a3 (patch)
treea1c3136b07c015ae4c0a2923e007e7f70539e867
parentd58d8a36e48174f0c430121a63378f638ae9c749 (diff)
downloadlinux-linaro-stable-db264dfac75f33b68073d9d9e3d78666aa90d7a3.tar.gz
thermal: of: Extend of-thermal to export table of trip points
This patch extends the of-thermal.c to export trip points for a given thermal zone. Thermal drivers should use of_thermal_get_trip_points() method to get pointer to table of thermal trip points. Signed-off-by: Lukasz Majewski <l.majewski@samsung.com> Signed-off-by: Eduardo Valentin <edubezval@gmail.com> (cherry picked from commit ce8be7785922de0ef497b20384425ed04f674f9d) Signed-off-by: Kevin Hilman <khilman@linaro.org>
-rw-r--r--drivers/thermal/of-thermal.c22
-rw-r--r--drivers/thermal/thermal_core.h7
2 files changed, 29 insertions, 0 deletions
diff --git a/drivers/thermal/of-thermal.c b/drivers/thermal/of-thermal.c
index d3ac117e2ddd..e062bf59ab6c 100644
--- a/drivers/thermal/of-thermal.c
+++ b/drivers/thermal/of-thermal.c
@@ -139,6 +139,28 @@ bool of_thermal_is_trip_valid(struct thermal_zone_device *tz, int trip)
}
EXPORT_SYMBOL_GPL(of_thermal_is_trip_valid);
+/**
+ * of_thermal_get_trip_points - function to get access to a globally exported
+ * trip points
+ *
+ * @tz: pointer to a thermal zone
+ *
+ * This function provides a pointer to trip points table
+ *
+ * Return: pointer to trip points table, NULL otherwise
+ */
+const struct thermal_trip * const
+of_thermal_get_trip_points(struct thermal_zone_device *tz)
+{
+ struct __thermal_zone *data = tz->devdata;
+
+ if (!data)
+ return NULL;
+
+ return data->trips;
+}
+EXPORT_SYMBOL_GPL(of_thermal_get_trip_points);
+
static int of_thermal_get_trend(struct thermal_zone_device *tz, int trip,
enum thermal_trend *trend)
{
diff --git a/drivers/thermal/thermal_core.h b/drivers/thermal/thermal_core.h
index 58a0dfa44705..9083e7520623 100644
--- a/drivers/thermal/thermal_core.h
+++ b/drivers/thermal/thermal_core.h
@@ -91,6 +91,8 @@ int of_parse_thermal_zones(void);
void of_thermal_destroy_zones(void);
int of_thermal_get_ntrips(struct thermal_zone_device *);
bool of_thermal_is_trip_valid(struct thermal_zone_device *, int);
+const struct thermal_trip * const
+of_thermal_get_trip_points(struct thermal_zone_device *);
#else
static inline int of_parse_thermal_zones(void) { return 0; }
static inline void of_thermal_destroy_zones(void) { }
@@ -103,6 +105,11 @@ static inline bool of_thermal_is_trip_valid(struct thermal_zone_device *tz,
{
return 0;
}
+static inline const struct thermal_trip * const
+of_thermal_get_trip_points(struct thermal_zone_device *tz)
+{
+ return NULL;
+}
#endif
#endif /* __THERMAL_CORE_H__ */