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| author | Julien Stephan <jstephan@baylibre.com> | 2024-07-31 09:05:43 +0200 |
|---|---|---|
| committer | Jonathan Cameron <Jonathan.Cameron@huawei.com> | 2024-08-03 12:33:34 +0200 |
| commit | d092b6869817208326005df0a656e3bb9724d89f (patch) | |
| tree | a7bc4d94857914070fb0c1713ef22695a755df30 /include | |
| parent | dt-bindings: iio: adc: ad7380: add single-ended compatible parts (diff) | |
| download | linux-d092b6869817208326005df0a656e3bb9724d89f.tar.xz linux-d092b6869817208326005df0a656e3bb9724d89f.zip | |
iio: core: add function to retrieve active_scan_mask index
Add a function to retrieve the index of the active scan mask inside the
available scan masks array.
As in iio_scan_mask_match and iio_sanity_check_avail_scan_masks,
this function does not handle multi-long masks correctly.
It only checks the first long to be zero, and will use such mask
as a terminator even if there was bits set after the first long.
This should be fine since the available_scan_mask has already been
sanity tested using iio_sanity_check_avail_scan_masks.
See iio_scan_mask_match and iio_sanity_check_avail_scan_masks for
more details
Signed-off-by: Julien Stephan <jstephan@baylibre.com>
Reviewed-by: David Lechner <dlechner@baylibre.com>
Link: https://patch.msgid.link/20240731-ad7380-add-single-ended-chips-v2-2-cd63bf05744c@baylibre.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/iio/iio.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/iio/iio.h b/include/linux/iio/iio.h index f6c0499853bb..3a735a9a9eae 100644 --- a/include/linux/iio/iio.h +++ b/include/linux/iio/iio.h @@ -864,6 +864,8 @@ static inline unsigned int iio_get_masklength(const struct iio_dev *indio_dev) return ACCESS_PRIVATE(indio_dev, masklength); } +int iio_active_scan_mask_index(struct iio_dev *indio_dev); + /** * iio_for_each_active_channel - Iterated over active channels * @indio_dev: the IIO device |