diff options
| author | J Keerthy <j-keerthy@ti.com> | 2013-04-01 12:04:46 -0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-04-01 12:27:31 -0700 |
| commit | 03b7f67bd1a085572539788d07c4630489108a35 (patch) | |
| tree | a8bdef7a02cb13b85b75ba45754685c1649e134f | |
| parent | 2f440b0622085a130ff723bb037066c9cbfc8cd7 (diff) | |
staging: ti-soc-thermal: Add get_trend support
Patch adds get_trend functionality for OMAP Bandgap thermal devices.
Signed-off-by: J Keerthy <j-keerthy@ti.com>
Signed-off-by: Eduardo Valentin <eduardo.valentin@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/staging/ti-soc-thermal/ti-thermal-common.c | 27 |
1 files changed, 26 insertions, 1 deletions
diff --git a/drivers/staging/ti-soc-thermal/ti-thermal-common.c b/drivers/staging/ti-soc-thermal/ti-thermal-common.c index 231c5490d1b1..092b39d15d2e 100644 --- a/drivers/staging/ti-soc-thermal/ti-thermal-common.c +++ b/drivers/staging/ti-soc-thermal/ti-thermal-common.c @@ -215,6 +215,31 @@ static int ti_thermal_get_trip_temp(struct thermal_zone_device *thermal, return 0; } +/* Get the temperature trend callback functions for thermal zone */ +static int ti_thermal_get_trend(struct thermal_zone_device *thermal, + int trip, enum thermal_trend *trend) +{ + struct ti_thermal_data *data = thermal->devdata; + struct ti_bandgap *bgp; + int id, tr, ret = 0; + + bgp = data->bgp; + id = data->sensor_id; + + ret = ti_bandgap_get_trend(bgp, id, &tr); + if (ret) + return ret; + + if (tr > 0) + *trend = THERMAL_TREND_RAISING; + else if (tr < 0) + *trend = THERMAL_TREND_DROPPING; + else + *trend = THERMAL_TREND_STABLE; + + return 0; +} + /* Get critical temperature callback functions for thermal zone */ static int ti_thermal_get_crit_temp(struct thermal_zone_device *thermal, unsigned long *temp) @@ -225,7 +250,7 @@ static int ti_thermal_get_crit_temp(struct thermal_zone_device *thermal, static struct thermal_zone_device_ops ti_thermal_ops = { .get_temp = ti_thermal_get_temp, - /* TODO: add .get_trend */ + .get_trend = ti_thermal_get_trend, .bind = ti_thermal_bind, .unbind = ti_thermal_unbind, .get_mode = ti_thermal_get_mode, |