This is a note to let you know that I've just added the patch titled
iio: adc: xilinx: Fix VREFP scale
to the 4.0-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
iio-adc-xilinx-fix-vrefp-scale.patch
and it can be found in the queue-4.0 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 00db4e52f4541965f7fda225eb458a75f892017b Mon Sep 17 00:00:00 2001
From: Thomas Betker <thomas.betker@xxxxxxxxxxxxxxxxx>
Date: Wed, 15 Apr 2015 21:11:49 +0200
Subject: iio: adc: xilinx: Fix VREFP scale
From: Thomas Betker <thomas.betker@xxxxxxxxxxxxxxxxx>
commit 00db4e52f4541965f7fda225eb458a75f892017b upstream.
The scaling factor for VREFP is 3.0/4096, not 1.0/4096; fix this to get
correct readings.
Signed-off-by: Thomas Betker <thomas.betker@xxxxxxxxxxxxxxxxx>
Signed-off-by: Jonathan Cameron <jic23@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/iio/adc/xilinx-xadc-core.c | 1 +
1 file changed, 1 insertion(+)
--- a/drivers/iio/adc/xilinx-xadc-core.c
+++ b/drivers/iio/adc/xilinx-xadc-core.c
@@ -856,6 +856,7 @@ static int xadc_read_raw(struct iio_dev
switch (chan->address) {
case XADC_REG_VCCINT:
case XADC_REG_VCCAUX:
+ case XADC_REG_VREFP:
case XADC_REG_VCCBRAM:
case XADC_REG_VCCPINT:
case XADC_REG_VCCPAUX:
Patches currently in stable-queue which might be from thomas.betker@xxxxxxxxxxxxxxxxx are
queue-4.0/iio-adc-xilinx-fix-register-addresses.patch
queue-4.0/iio-adc-xilinx-fix-vccaux-channel-.address.patch
queue-4.0/iio-adc-xilinx-fix-vrefp-scale.patch
queue-4.0/iio-adc-xilinx-fix-vrefn-sign.patch
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