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path: root/drivers/iio/humidity/hts221_core.c
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Diffstat (limited to 'drivers/iio/humidity/hts221_core.c')
-rw-r--r--drivers/iio/humidity/hts221_core.c91
1 files changed, 45 insertions, 46 deletions
diff --git a/drivers/iio/humidity/hts221_core.c b/drivers/iio/humidity/hts221_core.c
index 0be11470730c..bfeb0a60d3af 100644
--- a/drivers/iio/humidity/hts221_core.c
+++ b/drivers/iio/humidity/hts221_core.c
@@ -418,31 +418,22 @@ static int hts221_read_oneshot(struct hts221_hw *hw, u8 addr, int *val)
return IIO_VAL_INT;
}
-static int hts221_read_raw(struct iio_dev *iio_dev,
- struct iio_chan_spec const *ch,
- int *val, int *val2, long mask)
+static int __hts221_read_raw(struct iio_dev *iio_dev,
+ struct iio_chan_spec const *ch,
+ int *val, int *val2, long mask)
{
struct hts221_hw *hw = iio_priv(iio_dev);
- int ret;
-
- ret = iio_device_claim_direct_mode(iio_dev);
- if (ret)
- return ret;
switch (mask) {
case IIO_CHAN_INFO_RAW:
- ret = hts221_read_oneshot(hw, ch->address, val);
- break;
+ return hts221_read_oneshot(hw, ch->address, val);
case IIO_CHAN_INFO_SCALE:
- ret = hts221_get_sensor_scale(hw, ch->type, val, val2);
- break;
+ return hts221_get_sensor_scale(hw, ch->type, val, val2);
case IIO_CHAN_INFO_OFFSET:
- ret = hts221_get_sensor_offset(hw, ch->type, val, val2);
- break;
+ return hts221_get_sensor_offset(hw, ch->type, val, val2);
case IIO_CHAN_INFO_SAMP_FREQ:
*val = hw->odr;
- ret = IIO_VAL_INT;
- break;
+ return IIO_VAL_INT;
case IIO_CHAN_INFO_OVERSAMPLING_RATIO: {
u8 idx;
const struct hts221_avg *avg;
@@ -452,64 +443,72 @@ static int hts221_read_raw(struct iio_dev *iio_dev,
avg = &hts221_avg_list[HTS221_SENSOR_H];
idx = hw->sensors[HTS221_SENSOR_H].cur_avg_idx;
*val = avg->avg_avl[idx];
- ret = IIO_VAL_INT;
- break;
+ return IIO_VAL_INT;
case IIO_TEMP:
avg = &hts221_avg_list[HTS221_SENSOR_T];
idx = hw->sensors[HTS221_SENSOR_T].cur_avg_idx;
*val = avg->avg_avl[idx];
- ret = IIO_VAL_INT;
- break;
+ return IIO_VAL_INT;
default:
- ret = -EINVAL;
- break;
+ return -EINVAL;
}
- break;
}
default:
- ret = -EINVAL;
- break;
+ return -EINVAL;
}
+}
+
+static int hts221_read_raw(struct iio_dev *iio_dev,
+ struct iio_chan_spec const *ch,
+ int *val, int *val2, long mask)
+{
+ int ret;
+
+ if (!iio_device_claim_direct(iio_dev))
+ return -EBUSY;
- iio_device_release_direct_mode(iio_dev);
+ ret = __hts221_read_raw(iio_dev, ch, val, val2, mask);
+
+ iio_device_release_direct(iio_dev);
return ret;
}
-static int hts221_write_raw(struct iio_dev *iio_dev,
- struct iio_chan_spec const *chan,
- int val, int val2, long mask)
+static int __hts221_write_raw(struct iio_dev *iio_dev,
+ struct iio_chan_spec const *chan,
+ int val, long mask)
{
struct hts221_hw *hw = iio_priv(iio_dev);
- int ret;
-
- ret = iio_device_claim_direct_mode(iio_dev);
- if (ret)
- return ret;
switch (mask) {
case IIO_CHAN_INFO_SAMP_FREQ:
- ret = hts221_update_odr(hw, val);
- break;
+ return hts221_update_odr(hw, val);
case IIO_CHAN_INFO_OVERSAMPLING_RATIO:
switch (chan->type) {
case IIO_HUMIDITYRELATIVE:
- ret = hts221_update_avg(hw, HTS221_SENSOR_H, val);
- break;
+ return hts221_update_avg(hw, HTS221_SENSOR_H, val);
case IIO_TEMP:
- ret = hts221_update_avg(hw, HTS221_SENSOR_T, val);
- break;
+ return hts221_update_avg(hw, HTS221_SENSOR_T, val);
default:
- ret = -EINVAL;
- break;
+ return -EINVAL;
}
- break;
default:
- ret = -EINVAL;
- break;
+ return -EINVAL;
}
+}
+
+static int hts221_write_raw(struct iio_dev *iio_dev,
+ struct iio_chan_spec const *chan,
+ int val, int val2, long mask)
+{
+ int ret;
+
+ if (!iio_device_claim_direct(iio_dev))
+ return -EBUSY;
+
+ ret = __hts221_write_raw(iio_dev, chan, val, mask);
- iio_device_release_direct_mode(iio_dev);
+ iio_device_release_direct(iio_dev);
return ret;
}