This is a note to let you know that I've just added the patch titled
iio: adc: ad7606: fix reading unnecessary data from device
to my staging git tree which can be found at
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging.git
in the staging-linus branch.
The patch will show up in the next release of the linux-next tree
(usually sometime within the next 24 hours during the week.)
The patch will hopefully also be merged in Linus's tree for the
next -rc kernel release.
If you have any questions about this process, please let me know.
>From 341826a065660d1b77d89e6335b6095cd654271c Mon Sep 17 00:00:00 2001
From: Beniamin Bia <beniamin.bia@xxxxxxxxxx>
Date: Mon, 4 Nov 2019 18:26:34 +0200
Subject: iio: adc: ad7606: fix reading unnecessary data from device
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
When a conversion result is being read from ADC, the driver reads the
number of channels + 1 because it thinks that IIO_CHAN_SOFT_TIMESTAMP
is also a physical channel. This patch fixes this issue.
Fixes: 2985a5d88455 ("staging: iio: adc: ad7606: Move out of staging")
Reported-by: Robert Wörle <rwoerle@xxxxxxxxx>
Signed-off-by: Beniamin Bia <beniamin.bia@xxxxxxxxxx>
Cc: <Stable@xxxxxxxxxxxxxxx>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@xxxxxxxxxx>
---
drivers/iio/adc/ad7606.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/iio/adc/ad7606.c b/drivers/iio/adc/ad7606.c
index f5ba94c03a8d..e4683a68522a 100644
--- a/drivers/iio/adc/ad7606.c
+++ b/drivers/iio/adc/ad7606.c
@@ -85,7 +85,7 @@ static int ad7606_reg_access(struct iio_dev *indio_dev,
static int ad7606_read_samples(struct ad7606_state *st)
{
- unsigned int num = st->chip_info->num_channels;
+ unsigned int num = st->chip_info->num_channels - 1;
u16 *data = st->data;
int ret;
--
2.24.0
