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path: root/drivers/iio/magnetometer/mag3110.c
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Diffstat (limited to 'drivers/iio/magnetometer/mag3110.c')
-rw-r--r--drivers/iio/magnetometer/mag3110.c30
1 files changed, 20 insertions, 10 deletions
diff --git a/drivers/iio/magnetometer/mag3110.c b/drivers/iio/magnetometer/mag3110.c
index f2b3bd7bf862..b4f643fb3b1e 100644
--- a/drivers/iio/magnetometer/mag3110.c
+++ b/drivers/iio/magnetometer/mag3110.c
@@ -222,29 +222,39 @@ static int mag3110_write_raw(struct iio_dev *indio_dev,
int val, int val2, long mask)
{
struct mag3110_data *data = iio_priv(indio_dev);
- int rate;
+ int rate, ret;
- if (iio_buffer_enabled(indio_dev))
- return -EBUSY;
+ ret = iio_device_claim_direct_mode(indio_dev);
+ if (ret)
+ return ret;
switch (mask) {
case IIO_CHAN_INFO_SAMP_FREQ:
rate = mag3110_get_samp_freq_index(data, val, val2);
- if (rate < 0)
- return -EINVAL;
+ if (rate < 0) {
+ ret = -EINVAL;
+ break;
+ }
data->ctrl_reg1 &= ~MAG3110_CTRL_DR_MASK;
data->ctrl_reg1 |= rate << MAG3110_CTRL_DR_SHIFT;
- return i2c_smbus_write_byte_data(data->client,
+ ret = i2c_smbus_write_byte_data(data->client,
MAG3110_CTRL_REG1, data->ctrl_reg1);
+ break;
case IIO_CHAN_INFO_CALIBBIAS:
- if (val < -10000 || val > 10000)
- return -EINVAL;
- return i2c_smbus_write_word_swapped(data->client,
+ if (val < -10000 || val > 10000) {
+ ret = -EINVAL;
+ break;
+ }
+ ret = i2c_smbus_write_word_swapped(data->client,
MAG3110_OFF_X + 2 * chan->scan_index, val << 1);
+ break;
default:
- return -EINVAL;
+ ret = -EINVAL;
+ break;
}
+ iio_device_release_direct_mode(indio_dev);
+ return ret;
}
static irqreturn_t mag3110_trigger_handler(int irq, void *p)