diff options
Diffstat (limited to 'drivers/staging/iio/adc/ad7476_ring.c')
| -rw-r--r-- | drivers/staging/iio/adc/ad7476_ring.c | 31 |
1 files changed, 4 insertions, 27 deletions
diff --git a/drivers/staging/iio/adc/ad7476_ring.c b/drivers/staging/iio/adc/ad7476_ring.c index e82c1a433f4..4e298b2a05b 100644 --- a/drivers/staging/iio/adc/ad7476_ring.c +++ b/drivers/staging/iio/adc/ad7476_ring.c @@ -14,36 +14,12 @@ #include <linux/spi/spi.h> #include "../iio.h" -#include "../buffer_generic.h" +#include "../buffer.h" #include "../ring_sw.h" #include "../trigger_consumer.h" #include "ad7476.h" -int ad7476_scan_from_ring(struct iio_dev *indio_dev) -{ - struct iio_buffer *ring = indio_dev->buffer; - int ret; - u8 *ring_data; - - ring_data = kmalloc(ring->access->get_bytes_per_datum(ring), - GFP_KERNEL); - if (ring_data == NULL) { - ret = -ENOMEM; - goto error_ret; - } - ret = ring->access->read_last(ring, ring_data); - if (ret) - goto error_free_ring_data; - - ret = (ring_data[0] << 8) | ring_data[1]; - -error_free_ring_data: - kfree(ring_data); -error_ret: - return ret; -} - /** * ad7476_ring_preenable() setup the parameters of the ring before enabling * @@ -56,7 +32,8 @@ static int ad7476_ring_preenable(struct iio_dev *indio_dev) struct ad7476_state *st = iio_priv(indio_dev); struct iio_buffer *ring = indio_dev->buffer; - st->d_size = ring->scan_count * + st->d_size = bitmap_weight(indio_dev->active_scan_mask, + indio_dev->masklength) * st->chip_info->channel[0].scan_type.storagebits / 8; if (ring->scan_timestamp) { @@ -137,7 +114,7 @@ int ad7476_register_ring_funcs_and_init(struct iio_dev *indio_dev) } /* Ring buffer functions - here trigger setup related */ - indio_dev->buffer->setup_ops = &ad7476_ring_setup_ops; + indio_dev->setup_ops = &ad7476_ring_setup_ops; indio_dev->buffer->scan_timestamp = true; /* Flag that polled ring buffering is possible */ |