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staging:iio:cdc:ad7150: Add sampling_frequency support

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Device uses a fixed sampling frequency. Let us expose it to userspace.

Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Alexandru Ardelean <alexandru.ardelean@analog.com>
Link: https://lore.kernel.org/r/20210314181511.531414-10-jic23@kernel.org
This commit is contained in:
Jonathan Cameron 2021-03-14 18:14:56 +00:00
parent f1be99299e
commit d5723c679b
1 changed files with 6 additions and 0 deletions
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6
drivers/staging/iio/cdc/ad7150.c
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@ -126,6 +126,10 @@ static int ad7150_read_raw(struct iio_dev *indio_dev,
return ret;
*val = ret;
return IIO_VAL_INT;
case IIO_CHAN_INFO_SAMP_FREQ:
/* Strangely same for both 1 and 2 chan parts */
*val = 100;
return IIO_VAL_INT;
default:
return -EINVAL;
@ -449,6 +453,7 @@ static const struct iio_event_spec ad7150_events[] = {
.channel = _chan, \
.info_mask_separate = BIT(IIO_CHAN_INFO_RAW) | \
BIT(IIO_CHAN_INFO_AVERAGE_RAW), \
.info_mask_shared_by_all = BIT(IIO_CHAN_INFO_SAMP_FREQ),\
.event_spec = ad7150_events, \
.num_event_specs = ARRAY_SIZE(ad7150_events), \
}
@ -459,6 +464,7 @@ static const struct iio_event_spec ad7150_events[] = {
.channel = _chan, \
.info_mask_separate = BIT(IIO_CHAN_INFO_RAW) | \
BIT(IIO_CHAN_INFO_AVERAGE_RAW), \
.info_mask_shared_by_all = BIT(IIO_CHAN_INFO_SAMP_FREQ),\
}
static const struct iio_chan_spec ad7150_channels[] = {