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| author | Lukasz Majewski <l.majewski@samsung.com> | 2014-12-08 18:04:21 +0100 |
|---|---|---|
| committer | Eduardo Valentin <edubezval@gmail.com> | 2014-12-08 21:10:00 -0400 |
| commit | 184a4bf623fa587067851d25435fcb2f41de445b (patch) | |
| tree | 98023bf8abd50b6672f3e4b0f34e9c41c7944456 | |
| parent | ce8be7785922de0ef497b20384425ed04f674f9d (diff) | |
| download | blackbird-obmc-linux-184a4bf623fa587067851d25435fcb2f41de445b.tar.gz blackbird-obmc-linux-184a4bf623fa587067851d25435fcb2f41de445b.zip | |
thermal: of: Extend current of-thermal.c code to allow setting emulated temp
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>
| -rw-r--r-- | drivers/thermal/of-thermal.c | 24 | ||||
| -rw-r--r-- | include/linux/thermal.h | 3 |
2 files changed, 27 insertions, 0 deletions
diff --git a/drivers/thermal/of-thermal.c b/drivers/thermal/of-thermal.c index e062bf59ab6c..e145b66df444 100644 --- a/drivers/thermal/of-thermal.c +++ b/drivers/thermal/of-thermal.c @@ -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; diff --git a/include/linux/thermal.h b/include/linux/thermal.h index b8d91efa854e..99be7fc79c3b 100644 --- a/include/linux/thermal.h +++ b/include/linux/thermal.h @@ -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); }; /** |
