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thermal: of: Extend current of-thermal.c code to allow setting emulated temp

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Before this change it was only possible to set get_temp() and get_trend()
methods to be used in the common code handling passing parameters via
device tree to "cpu-thermal" CPU thermal zone device.

Now it is possible to also set emulated value of temperature for debug
purposes.

Signed-off-by: Lukasz Majewski <l.majewski@samsung.com>
Acked-by: Eduardo Valentin <edubezval@gmail.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
This commit is contained in:
Lukasz Majewski 2014-12-08 18:04:21 +01:00 committed by Eduardo Valentin
parent ce8be77859
commit 184a4bf623
2 changed files with 27 additions and 0 deletions
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24
drivers/thermal/of-thermal.c
View File

@ -161,6 +161,28 @@ of_thermal_get_trip_points(struct thermal_zone_device *tz)
}
EXPORT_SYMBOL_GPL(of_thermal_get_trip_points);
/**
* of_thermal_set_emul_temp - function to set emulated temperature
*
* @tz: pointer to a thermal zone
* @temp: temperature to set
*
* This function gives the ability to set emulated value of temperature,
* which is handy for debugging
*
* Return: zero on success, error code otherwise
*/
static int of_thermal_set_emul_temp(struct thermal_zone_device *tz,
unsigned long temp)
{
struct __thermal_zone *data = tz->devdata;
if (!data->ops || !data->ops->set_emul_temp)
return -EINVAL;
return data->ops->set_emul_temp(data->sensor_data, temp);
}
static int of_thermal_get_trend(struct thermal_zone_device *tz, int trip,
enum thermal_trend *trend)
{
@ -392,6 +414,7 @@ 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_emul_temp = of_thermal_set_emul_temp;
mutex_unlock(&tzd->lock);
return tzd;
@ -520,6 +543,7 @@ void thermal_zone_of_sensor_unregister(struct device *dev,
mutex_lock(&tzd->lock);
tzd->ops->get_temp = NULL;
tzd->ops->get_trend = NULL;
tzd->ops->set_emul_temp = NULL;
tz->ops = NULL;
tz->sensor_data = NULL;

3
include/linux/thermal.h
View File

@ -297,10 +297,13 @@ struct thermal_genl_event {
*
* Optional:
* @get_trend: a pointer to a function that reads the sensor temperature trend.
* @set_emul_temp: a pointer to a function that sets sensor emulated
* temperature.
*/
struct thermal_zone_of_device_ops {
int (*get_temp)(void *, long *);
int (*get_trend)(void *, long *);
int (*set_emul_temp)(void *, unsigned long);
};
/**