From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from smtp-out-164.synserver.de ([212.40.185.164]:1045 "EHLO smtp-out-163.synserver.de" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1754303Ab3I1Jam (ORCPT ); Sat, 28 Sep 2013 05:30:42 -0400 From: Lars-Peter Clausen To: Jonathan Cameron Cc: linux-iio@vger.kernel.org, Lars-Peter Clausen Subject: [PATCH 15/25] iio:ad7476: Report scale as fractional value Date: Sat, 28 Sep 2013 11:31:47 +0200 Message-Id: <1380360717-26103-15-git-send-email-lars@metafoo.de> In-Reply-To: <1380360717-26103-1-git-send-email-lars@metafoo.de> References: <1380360717-26103-1-git-send-email-lars@metafoo.de> Sender: linux-iio-owner@vger.kernel.org List-Id: linux-iio@vger.kernel.org Move the complexity of calculating the fixed point scale to the core. Signed-off-by: Lars-Peter Clausen --- drivers/iio/adc/ad7476.c | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-) diff --git a/drivers/iio/adc/ad7476.c b/drivers/iio/adc/ad7476.c index 8d808b9..d141d45 100644 --- a/drivers/iio/adc/ad7476.c +++ b/drivers/iio/adc/ad7476.c @@ -127,10 +127,9 @@ static int ad7476_read_raw(struct iio_dev *indio_dev, } else { scale_uv = st->chip_info->int_vref_uv; } - scale_uv >>= chan->scan_type.realbits; - *val = scale_uv / 1000; - *val2 = (scale_uv % 1000) * 1000; - return IIO_VAL_INT_PLUS_MICRO; + *val = scale_uv / 1000; + *val2 = chan->scan_type.realbits; + return IIO_VAL_FRACTIONAL_LOG2; } return -EINVAL; } -- 1.8.0