From a9bf2cc49d9030e374edb9cc0389512a1a1c357e Mon Sep 17 00:00:00 2001
From: Lukasz Majewski <l.majewski@samsung.com>
Date: Mon, 8 Dec 2014 18:04:18 +0100
Subject: [PATCH] thermal: of: Extend of-thermal.c to provide check if trip
point is valid
This patch extends the of-thermal.c to provide check if trip point is
valid.
Signed-off-by: Lukasz Majewski <l.majewski@samsung.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
---
drivers/thermal/of-thermal.c | 21 +++++++++++++++++++++
drivers/thermal/thermal_core.h | 6 ++++++
2 files changed, 27 insertions(+)
diff --git a/drivers/thermal/of-thermal.c b/drivers/thermal/of-thermal.c
index 7facd23b1d9b..87b9cfe28eb8 100644
--- a/drivers/thermal/of-thermal.c
+++ b/drivers/thermal/of-thermal.c
@@ -133,6 +133,27 @@ int of_thermal_get_ntrips(struct thermal_zone_device *tz)
}
EXPORT_SYMBOL_GPL(of_thermal_get_ntrips);
+/**
+ * of_thermal_is_trip_valid - function to check if trip point is valid
+ *
+ * @tz: pointer to a thermal zone
+ * @trip: trip point to evaluate
+ *
+ * This function is responsible for checking if passed trip point is valid
+ *
+ * Return: true if trip point is valid, false otherwise
+ */
+bool of_thermal_is_trip_valid(struct thermal_zone_device *tz, int trip)
+{
+ struct __thermal_zone *data = tz->devdata;
+
+ if (!data || trip >= data->ntrips || trip < 0)
+ return false;
+
+ return true;
+}
+EXPORT_SYMBOL_GPL(of_thermal_is_trip_valid);
+
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 1cc5041b7a26..58a0dfa44705 100644
--- a/drivers/thermal/thermal_core.h
+++ b/drivers/thermal/thermal_core.h
@@ -90,6 +90,7 @@ static inline void thermal_gov_user_space_unregister(void) {}
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);
#else
static inline int of_parse_thermal_zones(void) { return 0; }
static inline void of_thermal_destroy_zones(void) { }
@@ -97,6 +98,11 @@ static inline int of_thermal_get_ntrips(struct thermal_zone_device *tz)
{
return 0;
}
+static inline bool of_thermal_is_trip_valid(struct thermal_zone_device *tz,
+ int trip)
+{
+ return 0;
+}
#endif
#endif /* __THERMAL_CORE_H__ */