From mboxrd@z Thu Jan 1 00:00:00 1970 From: thomas.betker@freenet.de (Thomas Betker) Date: Wed, 11 Nov 2015 21:24:38 +0100 Subject: [PATCH] iio: adc: xilinx: Fix VREFN scale Message-ID: <1447273478-2530-1-git-send-email-thomas.betker@freenet.de> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org 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 --- 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: -- 2.6.3