From: J Keerthy <j-keer...@ti.com>
Patch adds get_trend functionality for OMAP Bandgap thermal devices.
Signed-off-by: J Keerthy <j-keer...@ti.com>
Signed-off-by: Eduardo Valentin <eduardo.valen...@ti.com>
---
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 231c549..092b39d 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,
--
1.7.7.1.488.ge8e1c
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