From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from smtp-out-164.synserver.de ([212.40.185.164]:1169 "EHLO smtp-out-163.synserver.de" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1754538Ab3I1Jay (ORCPT ); Sat, 28 Sep 2013 05:30:54 -0400 From: Lars-Peter Clausen To: Jonathan Cameron Cc: linux-iio@vger.kernel.org, Lars-Peter Clausen Subject: [PATCH 23/25] staging:iio:ad7746: Report scale as fractional value Date: Sat, 28 Sep 2013 11:31:55 +0200 Message-Id: <1380360717-26103-23-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/staging/iio/cdc/ad7746.c | 13 +++++++------ 1 file changed, 7 insertions(+), 6 deletions(-) diff --git a/drivers/staging/iio/cdc/ad7746.c b/drivers/staging/iio/cdc/ad7746.c index 75a533b..862d68d 100644 --- a/drivers/staging/iio/cdc/ad7746.c +++ b/drivers/staging/iio/cdc/ad7746.c @@ -656,20 +656,21 @@ static int ad7746_read_raw(struct iio_dev *indio_dev, switch (chan->type) { case IIO_CAPACITANCE: /* 8.192pf / 2^24 */ - *val2 = 488; *val = 0; + *val2 = 488; + ret = IIO_VAL_INT_PLUS_NANO; break; case IIO_VOLTAGE: /* 1170mV / 2^23 */ - *val2 = 139475; - *val = 0; + *val = 1170; + *val2 = 23; + ret = IIO_VAL_FRACTIONAL_LOG2; break; default: - ret = -EINVAL; - goto out; + ret = -EINVAL; + break; } - ret = IIO_VAL_INT_PLUS_NANO; break; default: ret = -EINVAL; -- 1.8.0