diff options
Diffstat (limited to 'drivers/staging/iio/adc/ad7192.c')
| -rw-r--r-- | drivers/staging/iio/adc/ad7192.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/drivers/staging/iio/adc/ad7192.c b/drivers/staging/iio/adc/ad7192.c index ad6cef5..1b6ecc8 100644 --- a/drivers/staging/iio/adc/ad7192.c +++ b/drivers/staging/iio/adc/ad7192.c @@ -479,12 +479,14 @@ static int ad7192_ring_preenable(struct iio_dev *indio_dev) size_t d_size; unsigned channel; - if (!ring->scan_count) + if (bitmap_empty(indio_dev->active_scan_mask, indio_dev->masklength)) return -EINVAL; - channel = find_first_bit(ring->scan_mask, indio_dev->masklength); + channel = find_first_bit(indio_dev->active_scan_mask, + indio_dev->masklength); - d_size = ring->scan_count * + d_size = bitmap_weight(indio_dev->active_scan_mask, + indio_dev->masklength) * indio_dev->channels[0].scan_type.storagebits / 8; if (ring->scan_timestamp) { @@ -544,7 +546,7 @@ static irqreturn_t ad7192_trigger_handler(int irq, void *p) s64 dat64[2]; s32 *dat32 = (s32 *)dat64; - if (ring->scan_count) + if (!bitmap_empty(indio_dev->active_scan_mask, indio_dev->masklength)) __ad7192_read_reg(st, 1, 1, AD7192_REG_DATA, dat32, indio_dev->channels[0].scan_type.realbits/8); |
