No known usecase and makes in kernel interface work more complex.
Signed-off-by: Jonathan Cameron <jic23@xxxxxxxxxx>
Acked-by: Lars-Peter Clausen <lars@xxxxxxxxxx>
---
drivers/staging/iio/adc/ad7793.c | 22 +---------------------
1 files changed, 1 insertions(+), 21 deletions(-)
diff --git a/drivers/staging/iio/adc/ad7793.c b/drivers/staging/iio/adc/ad7793.c
index b2dedb2..4047c5d 100644
--- a/drivers/staging/iio/adc/ad7793.c
+++ b/drivers/staging/iio/adc/ad7793.c
@@ -316,25 +316,6 @@ out:
return ret;
}
-static int ad7793_scan_from_ring(struct ad7793_state *st, unsigned ch, int *val)
-{
- struct iio_buffer *ring = iio_priv_to_dev(st)->buffer;
- int ret;
- s64 dat64[2];
- u32 *dat32 = (u32 *)dat64;
-
- if (!(test_bit(ch, ring->scan_mask)))
- return -EBUSY;
-
- ret = ring->access->read_last(ring, (u8 *) &dat64);
- if (ret)
- return ret;
-
- *val = *dat32;
-
- return 0;
-}
-
static int ad7793_ring_preenable(struct iio_dev *indio_dev)
{
struct ad7793_state *st = iio_priv(indio_dev);
@@ -650,8 +631,7 @@ static int ad7793_read_raw(struct iio_dev *indio_dev,
case 0:
mutex_lock(&indio_dev->mlock);
if (iio_buffer_enabled(indio_dev))
- ret = ad7793_scan_from_ring(st,
- chan->scan_index, &smpl);
+ ret = -EBUSY;
else
ret = ad7793_read(st, chan->address,
chan->scan_type.realbits / 8, &smpl);
--
1.7.7.4
--
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