Hi Eduardo, > On Mon, Dec 22, 2014 at 05:27:42PM +0100, Lukasz Majewski wrote: > > Odroid U3 fan can work without being registered as OF cooling device > > (with CONFIG_THERMAL_OF disabled). > > In this situation it can be controlled via PWM entry at > > /sys/class/hwmon/hwmon0/pwm1. > > > > Therefore, the thermal_cdev_update() function needs a stub > > to allow clean compilation. > > I am not sure I understand what you are attempting to do here. What is > the relation that you see between CONFIG_OF_THERMAL and > thermal_cdev_update? It should be CONFIG_THERMAL, not CONFIG_OF_THERMAL. The thermal_cdev_update() is necessary since pwm-fan code can be run without THERMAL subsystem (and such configuration is perfectly valid). > > > > > Signed-off-by: Lukasz Majewski <l.majewski@xxxxxxxxxxx> > > --- > > Changes for v2: > > - New patch > > --- > > include/linux/thermal.h | 6 +++++- > > 1 file changed, 5 insertions(+), 1 deletion(-) > > > > diff --git a/include/linux/thermal.h b/include/linux/thermal.h > > index 871123c..b3515b5 100644 > > --- a/include/linux/thermal.h > > +++ b/include/linux/thermal.h > > @@ -332,6 +332,7 @@ struct thermal_cooling_device * > > thermal_of_cooling_device_register(struct device_node *np, > > char *type, void *devdata, > > const struct > > thermal_cooling_device_ops *); +void thermal_cdev_update(struct > > thermal_cooling_device *); #else > > static inline struct thermal_zone_device * > > thermal_zone_of_sensor_register(struct device *dev, int id, void > > *data, @@ -353,6 +354,10 @@ > > thermal_of_cooling_device_register(struct device_node *np, { > > return NULL; > > } > > + > > +static inline void thermal_cdev_update(struct > > thermal_cooling_device *cdev) +{ > > +} > > #endif > > struct thermal_zone_device *thermal_zone_device_register(const > > char *, int, int, void *, struct thermal_zone_device_ops *, > > @@ -375,7 +380,6 @@ int thermal_zone_get_temp(struct > > thermal_zone_device *tz, unsigned long *temp); int > > get_tz_trend(struct thermal_zone_device *, int); struct > > thermal_instance *get_thermal_instance(struct thermal_zone_device > > *, struct thermal_cooling_device *, int); -void > > thermal_cdev_update(struct thermal_cooling_device *); void > > thermal_notify_framework(struct thermal_zone_device *, int); > > #ifdef CONFIG_NET > > -- > > 2.0.0.rc2 > > -- Best regards, Lukasz Majewski Samsung R&D Institute Poland (SRPOL) | Linux Platform Group -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html