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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>
This commit is contained in:
Lars-Peter Clausen 2012-11-05 09:56:00 +00:00 committed by Jonathan Cameron
parent fce7c3eac7
commit 98efb70add
1 changed files with 3 additions and 3 deletions
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6
drivers/staging/iio/adc/ad7887.c
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@ -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;
}