staging:iio:ad7887: Use passed in chan spec in ad7887_read_raw

Use the passed in chan spec in ad7887_read_raw instead of alawys using the first
chan spec entry from the chip info data. Since all channels have the same shift
and realbits from a functional point of view it does not matter which chan spec
is used, but the patch makes the a bit more clear.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

1 files changed, 3 insertions, 3 deletions

diff --git a/drivers/staging/iio/adc/ad7887.c b/drivers/staging/iio/adc/ad7887.c
index 3ac0c305e12..72cfe191cd8 100644
--- a/drivers/staging/iio/adc/ad7887.c
+++ b/drivers/staging/iio/adc/ad7887.c
@@ -177,8 +177,8 @@ static int ad7887_read_raw(struct iio_dev *indio_dev,
 
                 if (ret < 0)
                         return ret;
-                *val = (ret >> st->chip_info->channel[0].scan_type.shift) &
-                        RES_MASK(st->chip_info->channel[0].scan_type.realbits);
+                *val = ret >> chan->scan_type.shift;
+                *val &= RES_MASK(chan->scan_type.realbits);
                 return IIO_VAL_INT;
         case IIO_CHAN_INFO_SCALE:
                 if (st->reg) {
@@ -190,7 +190,7 @@ static int ad7887_read_raw(struct iio_dev *indio_dev,
                         *val = st->chip_info->int_vref_mv;
                 }
 
-                *val2 = st->chip_info->channel[0].scan_type.realbits;
+                *val2 = chan->scan_type.realbits;
 
                 return IIO_VAL_FRACTIONAL_LOG2;
         }