diff options
| -rw-r--r-- | include/linux/iio/iio.h | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/include/linux/iio/iio.h b/include/linux/iio/iio.h index 655e34a08d94..1c1d02107722 100644 --- a/include/linux/iio/iio.h +++ b/include/linux/iio/iio.h @@ -649,6 +649,26 @@ static inline struct iio_dev *iio_device_get(struct iio_dev *indio_dev) return indio_dev ? dev_to_iio_dev(get_device(&indio_dev->dev)) : NULL; } +/** + * iio_device_set_parent() - assign parent device to the IIO device object + * @indio_dev: IIO device structure + * @parent: reference to parent device object + * + * This utility must be called between IIO device allocation + * (via devm_iio_device_alloc()) & IIO device registration + * (via {devm_}iio_device_register()). + * By default, the device allocation will also assign a parent device to + * the IIO device object. In cases where devm_iio_device_alloc() is used, + * sometimes the parent device must be different than the device used to + * manage the allocation. + * In that case, this helper should be used to change the parent, hence the + * requirement to call this between allocation & registration. + **/ +static inline void iio_device_set_parent(struct iio_dev *indio_dev, + struct device *parent) +{ + indio_dev->dev.parent = parent; +} /** * iio_device_set_drvdata() - Set device driver data |