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author | Lukasz Majewski <l.majewski@samsung.com> | 2014-12-08 18:04:18 +0100 |
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committer | Eduardo Valentin <edubezval@gmail.com> | 2014-12-08 15:45:29 -0400 |
commit | a9bf2cc49d9030e374edb9cc0389512a1a1c357e (patch) | |
tree | 54f581d2c4a2a49259e523bc1b32cd29b0ac8bc0 /drivers/thermal/of-thermal.c | |
parent | 08dab66ec8431a1f744596cfc9f5fb659b623835 (diff) | |
download | linux-a9bf2cc49d9030e374edb9cc0389512a1a1c357e.tar.gz linux-a9bf2cc49d9030e374edb9cc0389512a1a1c357e.tar.bz2 linux-a9bf2cc49d9030e374edb9cc0389512a1a1c357e.zip |
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>
Diffstat (limited to 'drivers/thermal/of-thermal.c')
-rw-r--r-- | drivers/thermal/of-thermal.c | 21 |
1 files changed, 21 insertions, 0 deletions
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) { |