From bfbab2bcf9718ef5e778df8a746e5f4fb8ccd4f1 Mon Sep 17 00:00:00 2001 From: Lars-Peter Clausen Date: Sat, 28 Sep 2013 10:31:00 +0100 Subject: [PATCH] staging:iio:spear_adc: Report scale as fractional value Move the complexity of calculating the fixed point scale to the core. Signed-off-by: Lars-Peter Clausen Cc: Stefan Roese Signed-off-by: Jonathan Cameron --- drivers/staging/iio/adc/spear_adc.c | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-) diff --git a/drivers/staging/iio/adc/spear_adc.c b/drivers/staging/iio/adc/spear_adc.c index 20f2d555e7cd..657e01bd733c 100644 --- a/drivers/staging/iio/adc/spear_adc.c +++ b/drivers/staging/iio/adc/spear_adc.c @@ -168,10 +168,9 @@ static int spear_read_raw(struct iio_dev *indio_dev, return IIO_VAL_INT; case IIO_CHAN_INFO_SCALE: - scale_mv = (info->vref_external * 1000) >> DATA_BITS; - *val = scale_mv / 1000; - *val2 = (scale_mv % 1000) * 1000; - return IIO_VAL_INT_PLUS_MICRO; + *val = info->vref_external; + *val2 = DATA_BITS; + return IIO_VAL_FRACTIONAL_LOG2; } return -EINVAL; -- 2.39.5