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Subject[PATCH] drivers/thermal/thermal_of: Add change_mode ops support for thermal_of sensor
Date
The sensor driver which register through thermal_of interface doesn't
have an option to get thermal zone mode change notification from
thermal core.

Add support for change_mode ops in thermal_of interface so that sensor
driver can use this ops for mode change notification.

Signed-off-by: Manaf Meethalavalappu Pallikunhi <quic_manafm@quicinc.com>
---
drivers/thermal/thermal_of.c | 14 ++++++++++++++
include/linux/thermal.h | 3 +++
2 files changed, 17 insertions(+)

diff --git a/drivers/thermal/thermal_of.c b/drivers/thermal/thermal_of.c
index 9233f7e..a4e3820 100644
--- a/drivers/thermal/thermal_of.c
+++ b/drivers/thermal/thermal_of.c
@@ -203,6 +203,17 @@ static int of_thermal_get_trend(struct thermal_zone_device *tz, int trip,
return data->ops->get_trend(data->sensor_data, trip, trend);
}

+static int of_thermal_change_mode(struct thermal_zone_device *tz,
+ enum thermal_device_mode mode)
+{
+ struct __thermal_zone *data = tz->devdata;
+
+ if (!data->ops || !data->ops->change_mode)
+ return -EINVAL;
+
+ return data->ops->change_mode(data->sensor_data, mode);
+}
+
static int of_thermal_bind(struct thermal_zone_device *thermal,
struct thermal_cooling_device *cdev)
{
@@ -408,6 +419,9 @@ thermal_zone_of_add_sensor(struct device_node *zone,
if (ops->set_emul_temp)
tzd->ops->set_emul_temp = of_thermal_set_emul_temp;

+ if (ops->change_mode)
+ tzd->ops->change_mode = of_thermal_change_mode;
+
mutex_unlock(&tzd->lock);

return tzd;
diff --git a/include/linux/thermal.h b/include/linux/thermal.h
index c3148939..365733b 100644
--- a/include/linux/thermal.h
+++ b/include/linux/thermal.h
@@ -299,6 +299,8 @@ struct thermal_zone_params {
* temperature.
* @set_trip_temp: a pointer to a function that sets the trip temperature on
* hardware.
+ * @change_mode: a pointer to a function that notifies the thermal zone
+ * mode change.
*/
struct thermal_zone_of_device_ops {
int (*get_temp)(void *, int *);
@@ -306,6 +308,7 @@ struct thermal_zone_of_device_ops {
int (*set_trips)(void *, int, int);
int (*set_emul_temp)(void *, int);
int (*set_trip_temp)(void *, int, int);
+ int (*change_mode) (void *, enum thermal_device_mode);
};

/* Function declarations */
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