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iio:trigger: add resource managed (un)register

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Add resource managed devm_iio_trigger_register() and
devm_iio_triger_unregister() to automatically clean up registered triggers
allocated by IIO drivers, thus leading to simplified IIO drivers code.

Signed-off-by: Gregor Boirie <gregor.boirie@parrot.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
This commit is contained in:
Gregor Boirie
2016-09-02 20:47:54 +02:00
committed by Jonathan Cameron
parent 2535cc7ae0
commit 9083325f11
3 changed files with 67 additions and 0 deletions
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6
include/linux/iio/trigger.h
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@@ -125,12 +125,18 @@ static inline void *iio_trigger_get_drvdata(struct iio_trigger *trig)
**/
int iio_trigger_register(struct iio_trigger *trig_info);
int devm_iio_trigger_register(struct device *dev,
struct iio_trigger *trig_info);
/**
* iio_trigger_unregister() - unregister a trigger from the core
* @trig_info: trigger to be unregistered
**/
void iio_trigger_unregister(struct iio_trigger *trig_info);
void devm_iio_trigger_unregister(struct device *dev,
struct iio_trigger *trig_info);
/**
* iio_trigger_set_immutable() - set an immutable trigger on destination
*