[PATCH 2/4] thermal: of: implement .set_trips for device tree thermal zones

[Caesar Wang]

From: Sascha Hauer <s.ha...@pengutronix.de>

Signed-off-by: Sascha Hauer <s.ha...@pengutronix.de>
Signed-off-by: Caesar Wang <w...@rock-chips.com>
Cc: Zhang Rui <rui.zh...@intel.com>
Cc: Eduardo Valentin <edubez...@gmail.com>
Cc: linux...@vger.kernel.org
---

 drivers/thermal/of-thermal.c | 12 ++++++++++++
 include/linux/thermal.h      |  4 ++++
 2 files changed, 16 insertions(+)

diff --git a/drivers/thermal/of-thermal.c b/drivers/thermal/of-thermal.c
index b8e509c..8722e63 100644
--- a/drivers/thermal/of-thermal.c
+++ b/drivers/thermal/of-thermal.c
@@ -101,6 +101,17 @@ static int of_thermal_get_temp(struct thermal_zone_device 
*tz,
        return data->ops->get_temp(data->sensor_data, temp);
 }
 
+static int of_thermal_set_trips(struct thermal_zone_device *tz,
+                               int low, int high)
+{
+       struct __thermal_zone *data = tz->devdata;
+
+       if (!data->ops || !data->ops->set_trips)
+               return -EINVAL;
+
+       return data->ops->set_trips(data->sensor_data, low, high);
+}
+
 /**
  * of_thermal_get_ntrips - function to export number of available trip
  *                        points.
@@ -427,6 +438,7 @@ thermal_zone_of_add_sensor(struct device_node *zone,
 
        tzd->ops->get_temp = of_thermal_get_temp;
        tzd->ops->get_trend = of_thermal_get_trend;
+       tzd->ops->set_trips = of_thermal_set_trips;
        tzd->ops->set_emul_temp = of_thermal_set_emul_temp;
        mutex_unlock(&tzd->lock);
 
diff --git a/include/linux/thermal.h b/include/linux/thermal.h
index e258359..cb64866 100644
--- a/include/linux/thermal.h
+++ b/include/linux/thermal.h
@@ -336,12 +336,16 @@ struct thermal_genl_event {
  *
  * Optional:
  * @get_trend: a pointer to a function that reads the sensor temperature trend.
+ * @@set_trips: a pointer to a function that sets a temperature window. When
+ *             this window is left the driver must inform the thermal core via
+ *              thermal_zone_device_update.
  * @set_emul_temp: a pointer to a function that sets sensor emulated
  *                temperature.
  */
 struct thermal_zone_of_device_ops {
        int (*get_temp)(void *, int *);
        int (*get_trend)(void *, long *);
+       int (*set_trips)(void *, int, int);
        int (*set_emul_temp)(void *, int);
        int (*set_trip_temp)(void *, int, int);
 };
-- 
1.9.1