Messages in this thread Patch in this message | | | From | Lukasz Majewski <> | Subject | [PATCH v2 4/4] thermal: of: Extend current of-thermal.c code to allow setting emulated temp | Date | Thu, 20 Nov 2014 17:21:28 +0100 |
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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> --- Changes for v2: - Rework the emulated temperature setting code to use of_thermal_sensor_ops structure --- drivers/thermal/of-thermal.c | 24 ++++++++++++++++++++++++ include/linux/thermal.h | 1 + 2 files changed, 25 insertions(+)
diff --git a/drivers/thermal/of-thermal.c b/drivers/thermal/of-thermal.c index 33921c5..ad7dc2b 100644 --- a/drivers/thermal/of-thermal.c +++ b/drivers/thermal/of-thermal.c @@ -174,6 +174,28 @@ of_thermal_get_trip_points(struct thermal_zone_device *tz) return data->gtrips; } +/** + * 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) { @@ -405,6 +427,7 @@ 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; @@ -533,6 +556,7 @@ 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 88d7249..5eb9d44 100644 --- a/include/linux/thermal.h +++ b/include/linux/thermal.h @@ -301,6 +301,7 @@ struct thermal_genl_event { struct thermal_zone_of_device_ops { int (*get_temp)(void *, long *); int (*get_trend)(void *, long *); + int (*set_emul_temp)(void *, unsigned long); }; /** -- 2.0.0.rc2
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