From 0a99b6014343e39d7e01ebfc386fb16c8a5a6826 Mon Sep 17 00:00:00 2001 From: Lars-Peter Clausen Date: Sat, 28 Sep 2013 10:31:00 +0100 Subject: iio:ad5446: 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/dac/ad5446.c | 9 +++------ 1 file changed, 3 insertions(+), 6 deletions(-) (limited to 'drivers/iio/dac/ad5446.c') diff --git a/drivers/iio/dac/ad5446.c b/drivers/iio/dac/ad5446.c index 8e28d3633e22..1263b0e5ad84 100644 --- a/drivers/iio/dac/ad5446.c +++ b/drivers/iio/dac/ad5446.c @@ -163,18 +163,15 @@ static int ad5446_read_raw(struct iio_dev *indio_dev, long m) { struct ad5446_state *st = iio_priv(indio_dev); - unsigned long scale_uv; switch (m) { case IIO_CHAN_INFO_RAW: *val = st->cached_val; return IIO_VAL_INT; case IIO_CHAN_INFO_SCALE: - scale_uv = (st->vref_mv * 1000) >> chan->scan_type.realbits; - *val = scale_uv / 1000; - *val2 = (scale_uv % 1000) * 1000; - return IIO_VAL_INT_PLUS_MICRO; - + *val = st->vref_mv; + *val2 = chan->scan_type.realbits; + return IIO_VAL_FRACTIONAL_LOG2; } return -EINVAL; } -- cgit v1.2.3