diff options
| author | Lars-Peter Clausen <lars@metafoo.de> | 2013-09-28 10:31:00 +0100 |
|---|---|---|
| committer | Jonathan Cameron <jic23@kernel.org> | 2013-10-01 16:19:12 +0100 |
| commit | b2171677cbf8c781679b588fdffabfe0eaecbcdc (patch) | |
| tree | 51c1c1ea2861e40d9d50e2b6dccbf034ab65e6b9 /drivers/iio/adc | |
| parent | c45e561ee81477903b8254331cb2e28e04082de5 (diff) | |
| download | linux-b2171677cbf8c781679b588fdffabfe0eaecbcdc.tar.bz2 | |
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 <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Diffstat (limited to 'drivers/iio/adc')
| -rw-r--r-- | drivers/iio/adc/max1363.c | 8 |
1 files 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; } |