From 2150489ffbd1cd6f5d1091c1738b1adfbdf34a43 Mon Sep 17 00:00:00 2001 From: Jonathan Cameron Date: Sat, 21 Apr 2012 10:09:36 +0100 Subject: [PATCH] staging:iio:adc:ad7192 make use of iio_sw_buffer_preenable. This is not a fast path, so although the original code was more consise use the generic case to cut down on code repitition. Signed-off-by: Jonathan Cameron Acked-by: Lars-Peter Clausen Signed-off-by: Greg Kroah-Hartman --- drivers/staging/iio/adc/ad7192.c | 22 +++++----------------- 1 file changed, 5 insertions(+), 17 deletions(-) diff --git a/drivers/staging/iio/adc/ad7192.c b/drivers/staging/iio/adc/ad7192.c index feb81f639447..25ef3c370d1f 100644 --- a/drivers/staging/iio/adc/ad7192.c +++ b/drivers/staging/iio/adc/ad7192.c @@ -456,31 +456,19 @@ out: static int ad7192_ring_preenable(struct iio_dev *indio_dev) { struct ad7192_state *st = iio_priv(indio_dev); - struct iio_buffer *ring = indio_dev->buffer; - size_t d_size; unsigned channel; + int ret; if (bitmap_empty(indio_dev->active_scan_mask, indio_dev->masklength)) return -EINVAL; + ret = iio_sw_buffer_preenable(indio_dev); + if (ret < 0) + return ret; + channel = find_first_bit(indio_dev->active_scan_mask, indio_dev->masklength); - d_size = bitmap_weight(indio_dev->active_scan_mask, - indio_dev->masklength) * - indio_dev->channels[0].scan_type.storagebits / 8; - - if (ring->scan_timestamp) { - d_size += sizeof(s64); - - if (d_size % sizeof(s64)) - d_size += sizeof(s64) - (d_size % sizeof(s64)); - } - - if (indio_dev->buffer->access->set_bytes_per_datum) - indio_dev->buffer->access-> - set_bytes_per_datum(indio_dev->buffer, d_size); - st->mode = (st->mode & ~AD7192_MODE_SEL(-1)) | AD7192_MODE_SEL(AD7192_MODE_CONT); st->conf = (st->conf & ~AD7192_CONF_CHAN(-1)) | -- 2.20.1