diff options
Diffstat (limited to 'drivers/iio/dac/ad5686.c')
| -rw-r--r-- | drivers/iio/dac/ad5686.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/drivers/iio/dac/ad5686.c b/drivers/iio/dac/ad5686.c index e06b29c565b9..8dd67da0a7da 100644 --- a/drivers/iio/dac/ad5686.c +++ b/drivers/iio/dac/ad5686.c @@ -127,9 +127,9 @@ static int ad5686_read_raw(struct iio_dev *indio_dev, switch (m) { case IIO_CHAN_INFO_RAW: - mutex_lock(&indio_dev->mlock); + mutex_lock(&st->lock); ret = st->read(st, chan->address); - mutex_unlock(&indio_dev->mlock); + mutex_unlock(&st->lock); if (ret < 0) return ret; *val = (ret >> chan->scan_type.shift) & @@ -157,12 +157,12 @@ static int ad5686_write_raw(struct iio_dev *indio_dev, if (val > (1 << chan->scan_type.realbits) || val < 0) return -EINVAL; - mutex_lock(&indio_dev->mlock); + mutex_lock(&st->lock); ret = st->write(st, AD5686_CMD_WRITE_INPUT_N_UPDATE_N, chan->address, val << chan->scan_type.shift); - mutex_unlock(&indio_dev->mlock); + mutex_unlock(&st->lock); break; default: ret = -EINVAL; @@ -468,6 +468,8 @@ int ad5686_probe(struct device *dev, indio_dev->channels = st->chip_info->channels; indio_dev->num_channels = st->chip_info->num_channels; + mutex_init(&st->lock); + switch (st->chip_info->regmap_type) { case AD5310_REGMAP: cmd = AD5686_CMD_CONTROL_REG; |