[PATCH 12/15] thermal: of: implement .set_trips for device tree thermal zones
From: Mikko Perttunen <hidden>
Date: 2015-05-18 09:09:29
Also in:
linux-mediatek, linux-pm, lkml
On 05/13/15 11:52, Sascha Hauer wrote:
quoted hunk ↗ jump to hunk
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> --- drivers/thermal/of-thermal.c | 12 ++++++++++++ include/linux/thermal.h | 3 +++ 2 files changed, 15 insertions(+)diff --git a/drivers/thermal/of-thermal.c b/drivers/thermal/of-thermal.c index bd3185e..f8dd847 100644 --- a/drivers/thermal/of-thermal.c +++ b/drivers/thermal/of-thermal.c@@ -97,6 +97,17 @@ 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 -ENOSYS; + + return data->ops->set_trips(data->sensor_data, low, high); +} + /** * of_thermal_get_ntrips - function to export number of available trip * points.@@ -367,6 +378,7 @@ static int of_thermal_get_crit_temp(struct thermal_zone_device *tz, static const struct thermal_zone_device_ops of_thermal_ops = { .get_temp = of_thermal_get_temp, + .set_trips = of_thermal_set_trips, .get_trend = of_thermal_get_trend, .set_emul_temp = of_thermal_set_emul_temp,diff --git a/include/linux/thermal.h b/include/linux/thermal.h index aef6e13..b751f6b 100644 --- a/include/linux/thermal.h +++ b/include/linux/thermal.h@@ -267,12 +267,15 @@ 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 which shall + * trigger an interrupt when it is left.
Perhaps this documentation should be expanded a little; the commit message in the previous patch looked pretty good. The fact that the driver needs to call thermal_zone_device_update should be mentioned somewhere.
* @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 *, int, enum thermal_trend *);
+ int (*set_trips)(void *, int, int);
int (*set_emul_temp)(void *, int);
};
Thanks, Mikko.