Commit d5723c67 authored by Jonathan Cameron's avatar Jonathan Cameron
Browse files

staging:iio:cdc:ad7150: Add sampling_frequency support 



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

Signed-off-by: default avatarJonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: default avatarAlexandru Ardelean <alexandru.ardelean@analog.com>
Link: https://lore.kernel.org/r/20210314181511.531414-10-jic23@kernel.org
parent f1be9929

drivers/staging/iio/cdc/ad7150.c

+6 −0
Original line number Diff line number Diff line
@@ -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[] = {