From b2171677cbf8c781679b588fdffabfe0eaecbcdc Mon Sep 17 00:00:00 2001 From: Lars-Peter Clausen Date: Sat, 28 Sep 2013 10:31:00 +0100 Subject: [PATCH] iio:max1363: Report scale as fractional value Move the complexity of calculating the fixed point scale to the core. Signed-off-by: Lars-Peter Clausen Signed-off-by: Jonathan Cameron --- drivers/iio/adc/max1363.c | 8 +++----- 1 file changed, 3 insertions(+), 5 deletions(-) diff --git a/drivers/iio/adc/max1363.c b/drivers/iio/adc/max1363.c index b4bc166d57b0..2b34d2f02cf3 100644 --- a/drivers/iio/adc/max1363.c +++ b/drivers/iio/adc/max1363.c @@ -397,7 +397,6 @@ static int max1363_read_raw(struct iio_dev *indio_dev, { struct max1363_state *st = iio_priv(indio_dev); int ret; - unsigned long scale_uv; switch (m) { case IIO_CHAN_INFO_RAW: @@ -406,10 +405,9 @@ static int max1363_read_raw(struct iio_dev *indio_dev, return ret; return IIO_VAL_INT; case IIO_CHAN_INFO_SCALE: - scale_uv = st->vref_uv >> st->chip_info->bits; - *val = scale_uv / 1000; - *val2 = (scale_uv % 1000) * 1000; - return IIO_VAL_INT_PLUS_MICRO; + *val = st->vref_uv / 1000; + *val2 = st->chip_info->bits; + return IIO_VAL_FRACTIONAL_LOG2; default: return -EINVAL; } -- GitLab