iio: xilinx-xadc-core: Use local variable in xadc_read_raw

Minor cleanup: bit is already defined as chan->scan_type.realbits,
use bit when needed.

Signed-off-by: Gwendal Grignou <gwendal@chromium.org>
Link: https://lore.kernel.org/r/20211104082413.3681212-13-gwendal@chromium.org
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

diff --git a/drivers/iio/adc/xilinx-xadc-core.c b/drivers/iio/adc/xilinx-xadc-core.c
index 2aa4278..823c8e5 100644 (file)
--- a/drivers/iio/adc/xilinx-xadc-core.c
+++ b/drivers/iio/adc/xilinx-xadc-core.c
@@ -944,7 +944,7 @@ static int xadc_read_raw(struct iio_dev *indio_dev,
                                *val = 1000;
                                break;
                        }
-                       *val2 = chan->scan_type.realbits;
+                       *val2 = bits;
                        return IIO_VAL_FRACTIONAL_LOG2;
                case IIO_TEMP:
                        /* Temp in C = (val * 503.975) / 2**bits - 273.15 */