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iio: accel: bma180: use iio helper function to guarantee direct mode 

Replace the code that guarantees the device stays in direct mode
with iio_device_claim_direct_mode() which does same.

Signed-off-by: Alison Schofield <amsfield22@gmail.com>
Cc: Daniel Baluta <daniel.baluta@gmail.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
This commit is contained in:
Alison Schofield 2016-07-25 12:11:20 -07:00 committed by Jonathan Cameron
parent ca1902ff98
commit b75b58b46b
1 changed files with 5 additions and 4 deletions
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9
drivers/iio/accel/bma180.c
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@ -469,13 +469,14 @@ static int bma180_read_raw(struct iio_dev *indio_dev,
switch (mask) { switch (mask) {
case IIO_CHAN_INFO_RAW: case IIO_CHAN_INFO_RAW:
ret = iio_device_claim_direct_mode(indio_dev);
if (ret)
return ret;
mutex_lock(&data->mutex); mutex_lock(&data->mutex);
if (iio_buffer_enabled(indio_dev)) {
mutex_unlock(&data->mutex);
return -EBUSY;
}
ret = bma180_get_data_reg(data, chan->scan_index); ret = bma180_get_data_reg(data, chan->scan_index);
mutex_unlock(&data->mutex); mutex_unlock(&data->mutex);
iio_device_release_direct_mode(indio_dev);
if (ret < 0) if (ret < 0)
return ret; return ret;
*val = sign_extend32(ret >> chan->scan_type.shift, *val = sign_extend32(ret >> chan->scan_type.shift,