Commit 150fa5c1 authored by Thomas Betker's avatar Thomas Betker Committed by Luis Henriques

iio: adc: xilinx: Fix VREFN scale

commit a57f8dac upstream.

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: default avatarHartmut Knaack <knaack.h@gmx.de>
Signed-off-by: default avatarThomas Betker <thomas.betker@rohde-schwarz.com>
Signed-off-by: default avatarJonathan Cameron <jic23@kernel.org>
Signed-off-by: default avatarLuis Henriques <luis.henriques@canonical.com>
parent 09a75205
......@@ -857,6 +857,7 @@ 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:
......
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