diff options
Diffstat (limited to 'include/linux/iio/driver.h')
| -rw-r--r-- | include/linux/iio/driver.h | 23 |
1 files changed, 18 insertions, 5 deletions
diff --git a/include/linux/iio/driver.h b/include/linux/iio/driver.h index 7dfb10ee2669..7f8b55551ed0 100644 --- a/include/linux/iio/driver.h +++ b/include/linux/iio/driver.h @@ -1,16 +1,15 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Industrial I/O in kernel access map interface. * * Copyright (c) 2011 Jonathan Cameron - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 as published by - * the Free Software Foundation. */ #ifndef _IIO_INKERN_H_ #define _IIO_INKERN_H_ +struct device; +struct iio_dev; struct iio_map; /** @@ -19,7 +18,7 @@ struct iio_map; * @map: array of mappings specifying association of channel with client */ int iio_map_array_register(struct iio_dev *indio_dev, - struct iio_map *map); + const struct iio_map *map); /** * iio_map_array_unregister() - tell the core to remove consumer mappings for @@ -28,4 +27,18 @@ int iio_map_array_register(struct iio_dev *indio_dev, */ int iio_map_array_unregister(struct iio_dev *indio_dev); +/** + * devm_iio_map_array_register - device-managed version of iio_map_array_register + * @dev: Device object to which to bind the unwinding of this registration + * @indio_dev: Pointer to the iio_dev structure + * @maps: Pointer to an IIO map object which is to be registered to this IIO device + * + * This function will call iio_map_array_register() to register an IIO map object + * and will also hook a callback to the iio_map_array_unregister() function to + * handle de-registration of the IIO map object when the device's refcount goes to + * zero. + */ +int devm_iio_map_array_register(struct device *dev, struct iio_dev *indio_dev, + const struct iio_map *maps); + #endif |