diff options
Diffstat (limited to 'drivers/devfreq/governor.h')
| -rw-r--r-- | drivers/devfreq/governor.h | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/devfreq/governor.h b/drivers/devfreq/governor.h index 70f44b3ca42e..2d69a0ce6291 100644 --- a/drivers/devfreq/governor.h +++ b/drivers/devfreq/governor.h @@ -57,8 +57,6 @@ * Basically, get_target_freq will run * devfreq_dev_profile.get_dev_status() to get the * status of the device (load = busy_time / total_time). - * If no_central_polling is set, this callback is called - * only with update_devfreq() notified by OPP. * @event_handler: Callback for devfreq core framework to notify events * to governors. Events include per device governor * init and exit, opp changes out of devfreq, suspend @@ -91,6 +89,9 @@ int devfreq_update_target(struct devfreq *devfreq, unsigned long freq); static inline int devfreq_update_stats(struct devfreq *df) { + if (!df->profile->get_dev_status) + return -EINVAL; + return df->profile->get_dev_status(df->dev.parent, &df->last_status); } #endif /* _GOVERNOR_H */ |