diff options
Diffstat (limited to 'drivers/iio/adc/xilinx-xadc-events.c')
| -rw-r--r-- | drivers/iio/adc/xilinx-xadc-events.c | 9 |
1 files changed, 4 insertions, 5 deletions
diff --git a/drivers/iio/adc/xilinx-xadc-events.c b/drivers/iio/adc/xilinx-xadc-events.c index 2357f585720a..1bd375fb10e0 100644 --- a/drivers/iio/adc/xilinx-xadc-events.c +++ b/drivers/iio/adc/xilinx-xadc-events.c @@ -155,9 +155,6 @@ err_out: return ret; } -/* Register value is msb aligned, the lower 4 bits are ignored */ -#define XADC_THRESHOLD_VALUE_SHIFT 4 - int xadc_read_event_value(struct iio_dev *indio_dev, const struct iio_chan_spec *chan, enum iio_event_type type, enum iio_event_direction dir, enum iio_event_info info, @@ -177,7 +174,8 @@ int xadc_read_event_value(struct iio_dev *indio_dev, return -EINVAL; } - *val >>= XADC_THRESHOLD_VALUE_SHIFT; + /* MSB aligned */ + *val >>= 16 - chan->scan_type.realbits; return IIO_VAL_INT; } @@ -191,7 +189,8 @@ int xadc_write_event_value(struct iio_dev *indio_dev, struct xadc *xadc = iio_priv(indio_dev); int ret = 0; - val <<= XADC_THRESHOLD_VALUE_SHIFT; + /* MSB aligned */ + val <<= 16 - chan->scan_type.realbits; if (val < 0 || val > 0xffff) return -EINVAL; |