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authorLukasz Majewski <l.majewski@samsung.com>2014-12-08 20:04:17 +0300
committerEduardo Valentin <edubezval@gmail.com>2014-12-08 22:38:32 +0300
commit08dab66ec8431a1f744596cfc9f5fb659b623835 (patch)
tree325ba73d13f1e4b6bd7e2a598e0d2e5945c4eec5 /drivers/thermal
parente920f9b632a687834de5a78c60ac5c4c62327b1d (diff)
downloadlinux-08dab66ec8431a1f744596cfc9f5fb659b623835.tar.xz
thermal: of: Extend of-thermal.c to provide number of trip points
This patch extends the of-thermal.c to provide information about number of available trip points. Signed-off-by: Lukasz Majewski <l.majewski@samsung.com> Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
Diffstat (limited to 'drivers/thermal')
-rw-r--r--drivers/thermal/of-thermal.c21
-rw-r--r--drivers/thermal/thermal_core.h5
2 files changed, 26 insertions, 0 deletions
diff --git a/drivers/thermal/of-thermal.c b/drivers/thermal/of-thermal.c
index b7982f0a6eaf..7facd23b1d9b 100644
--- a/drivers/thermal/of-thermal.c
+++ b/drivers/thermal/of-thermal.c
@@ -112,6 +112,27 @@ static int of_thermal_get_temp(struct thermal_zone_device *tz,
return data->ops->get_temp(data->sensor_data, temp);
}
+/**
+ * of_thermal_get_ntrips - function to export number of available trip
+ * points.
+ * @tz: pointer to a thermal zone
+ *
+ * This function is a globally visible wrapper to get number of trip points
+ * stored in the local struct __thermal_zone
+ *
+ * Return: number of available trip points, -ENODEV when data not available
+ */
+int of_thermal_get_ntrips(struct thermal_zone_device *tz)
+{
+ struct __thermal_zone *data = tz->devdata;
+
+ if (!data || IS_ERR(data))
+ return -ENODEV;
+
+ return data->ntrips;
+}
+EXPORT_SYMBOL_GPL(of_thermal_get_ntrips);
+
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 d15d243de27a..1cc5041b7a26 100644
--- a/drivers/thermal/thermal_core.h
+++ b/drivers/thermal/thermal_core.h
@@ -89,9 +89,14 @@ static inline void thermal_gov_user_space_unregister(void) {}
#ifdef CONFIG_THERMAL_OF
int of_parse_thermal_zones(void);
void of_thermal_destroy_zones(void);
+int of_thermal_get_ntrips(struct thermal_zone_device *);
#else
static inline int of_parse_thermal_zones(void) { return 0; }
static inline void of_thermal_destroy_zones(void) { }
+static inline int of_thermal_get_ntrips(struct thermal_zone_device *tz)
+{
+ return 0;
+}
#endif
#endif /* __THERMAL_CORE_H__ */