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| author |   Beniamin Bia <beniamin.bia@analog.com> | 2020-02-06 17:11:46 +0200 |
|---|---|---|
| committer |   Jonathan Cameron <Jonathan.Cameron@huawei.com> | 2020-02-21 10:02:16 +0000 |
| commit | 0cc97f2e46e0b374bbf7efc30bad638d8974cf1e (patch) | |
| tree | 68fc8a6439fe4dfebc010aa14563756438a54cac /drivers/iio/amplifiers | |
| parent | iio: core: Handle 'dB' suffix in core (diff) | |
| download | linux-dev-0cc97f2e46e0b374bbf7efc30bad638d8974cf1e.tar.xz linux-dev-0cc97f2e46e0b374bbf7efc30bad638d8974cf1e.zip | |
iio: amplifiers: ad8366: Add write_raw_get_fmt function
This patch add write_raw_get_fmt function to specify conversion for
hardware gain.
Signed-off-by: Beniamin Bia <beniamin.bia@analog.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Diffstat (limited to 'drivers/iio/amplifiers')
| -rw-r--r-- | drivers/iio/amplifiers/ad8366.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/drivers/iio/amplifiers/ad8366.c b/drivers/iio/amplifiers/ad8366.c index 0176d3d8cc9c..95972ab60f42 100644 --- a/drivers/iio/amplifiers/ad8366.c +++ b/drivers/iio/amplifiers/ad8366.c @@ -180,9 +180,22 @@ static int ad8366_write_raw(struct iio_dev *indio_dev, return ret; } +static int ad8366_write_raw_get_fmt(struct iio_dev *indio_dev, + struct iio_chan_spec const *chan, + long mask) +{ + switch (mask) { + case IIO_CHAN_INFO_HARDWAREGAIN: + return IIO_VAL_INT_PLUS_MICRO_DB; + default: + return -EINVAL; + } +} + static const struct iio_info ad8366_info = { .read_raw = &ad8366_read_raw, .write_raw = &ad8366_write_raw, + .write_raw_get_fmt = &ad8366_write_raw_get_fmt, }; #define AD8366_CHAN(_channel) { \ |