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staging: iio: ad7192: use iio_device_{claim|release}_direct_mode()

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Replace the code that guarantees the device stays in direct mode with
iio_device_{claim|release}_direct_mode() which does same.

Signed-off-by: Alison Schofield <amsfield22@gmail.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
This commit is contained in:
Alison Schofield 2016-03-09 11:30:43 -08:00 committed by Jonathan Cameron
parent 08a3380551
commit 1c118b7230
1 changed files with 12 additions and 18 deletions
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30
drivers/staging/iio/adc/ad7192.c
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@ -349,11 +349,9 @@ static ssize_t ad7192_write_frequency(struct device *dev,
if (lval == 0)
return -EINVAL;
mutex_lock(&indio_dev->mlock);
if (iio_buffer_enabled(indio_dev)) {
mutex_unlock(&indio_dev->mlock);
return -EBUSY;
}
ret = iio_device_claim_direct_mode(indio_dev);
if (ret)
return ret;
div = st->mclk / (lval * st->f_order * 1024);
if (div < 1 || div > 1023) {
@ -366,7 +364,7 @@ static ssize_t ad7192_write_frequency(struct device *dev,
ad_sd_write_reg(&st->sd, AD7192_REG_MODE, 3, st->mode);
out:
mutex_unlock(&indio_dev->mlock);
iio_device_release_direct_mode(indio_dev);
return ret ? ret : len;
}
@ -434,11 +432,9 @@ static ssize_t ad7192_set(struct device *dev,
if (ret < 0)
return ret;
mutex_lock(&indio_dev->mlock);
if (iio_buffer_enabled(indio_dev)) {
mutex_unlock(&indio_dev->mlock);
return -EBUSY;
}
ret = iio_device_claim_direct_mode(indio_dev);
if (ret)
return ret;
switch ((u32)this_attr->address) {
case AD7192_REG_GPOCON:
@ -461,7 +457,7 @@ static ssize_t ad7192_set(struct device *dev,
ret = -EINVAL;
}
mutex_unlock(&indio_dev->mlock);
iio_device_release_direct_mode(indio_dev);
return ret ? ret : len;
}
@ -555,11 +551,9 @@ static int ad7192_write_raw(struct iio_dev *indio_dev,
int ret, i;
unsigned int tmp;
mutex_lock(&indio_dev->mlock);
if (iio_buffer_enabled(indio_dev)) {
mutex_unlock(&indio_dev->mlock);
return -EBUSY;
}
ret = iio_device_claim_direct_mode(indio_dev);
if (ret)
return ret;
switch (mask) {
case IIO_CHAN_INFO_SCALE:
@ -582,7 +576,7 @@ static int ad7192_write_raw(struct iio_dev *indio_dev,
ret = -EINVAL;
}
mutex_unlock(&indio_dev->mlock);
iio_device_release_direct_mode(indio_dev);
return ret;
}