From mboxrd@z Thu Jan 1 00:00:00 1970 From: jic23@kernel.org (Jonathan Cameron) Date: Sun, 15 Nov 2015 10:42:39 +0000 Subject: [PATCH] iio: adc: xilinx: Fix VREFN scale In-Reply-To: <1447273478-2530-1-git-send-email-thomas.betker@freenet.de> References: <1447273478-2530-1-git-send-email-thomas.betker@freenet.de> Message-ID: <5648619F.4040208@kernel.org> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On 11/11/15 20:24, Thomas Betker wrote: > From: Thomas Betker > > The scaling factor for VREFN is 3.0/4096 (not 1.0/4096), just as for > VREFP. This is not immediately obvious from the specification (Xilinx > UG480), but has been confirmed by Xilinx support. > > Suggested-by: Hartmut Knaack > Signed-off-by: Thomas Betker Applied to the fixes-togreg branch of iio.git and marked for stable. Thanks, Jonathan > --- > drivers/iio/adc/xilinx-xadc-core.c | 1 + > 1 file changed, 1 insertion(+) > > diff --git a/drivers/iio/adc/xilinx-xadc-core.c b/drivers/iio/adc/xilinx-xadc-core.c > index 0370624..02e636a 100644 > --- a/drivers/iio/adc/xilinx-xadc-core.c > +++ b/drivers/iio/adc/xilinx-xadc-core.c > @@ -841,6 +841,7 @@ static int xadc_read_raw(struct iio_dev *indio_dev, > case XADC_REG_VCCINT: > case XADC_REG_VCCAUX: > case XADC_REG_VREFP: > + case XADC_REG_VREFN: > case XADC_REG_VCCBRAM: > case XADC_REG_VCCPINT: > case XADC_REG_VCCPAUX: >