This is a note to let you know that I've just added the patch titled

iio: adc: ad7124: fix DT configuration parsing

to my char-misc git tree which can be found at git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc.git in the char-misc-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 61cbfb5368dd50ed0d65ce21d305aa923581db2b Mon Sep 17 00:00:00 2001 From: Dumitru Ceclan mitrutzceclan@gmail.com Date: Tue, 6 Aug 2024 11:51:33 +0300 Subject: iio: adc: ad7124: fix DT configuration parsing

The cfg pointer is set before reading the channel number that the configuration should point to. This causes configurations to be shifted by one channel. For example setting bipolar to the first channel defined in the DT will cause bipolar mode to be active on the second defined channel.

Fix by moving the cfg pointer setting after reading the channel number.

Fixes: 7b8d045e497a ("iio: adc: ad7124: allow more than 8 channels") Signed-off-by: Dumitru Ceclan dumitru.ceclan@analog.com Reviewed-by: Nuno Sa nuno.sa@analog.com Link: https://patch.msgid.link/20240806085133.114547-1-dumitru.ceclan@analog.com Cc: Stable@vger.kernel.org Signed-off-by: Jonathan Cameron Jonathan.Cameron@huawei.com --- drivers/iio/adc/ad7124.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/iio/adc/ad7124.c b/drivers/iio/adc/ad7124.c index afb5f4d741e6..108e9ccab1ef 100644 --- a/drivers/iio/adc/ad7124.c +++ b/drivers/iio/adc/ad7124.c @@ -844,8 +844,6 @@ static int ad7124_parse_channel_config(struct iio_dev *indio_dev, st->channels = channels;

device_for_each_child_node_scoped(dev, child) { - cfg = &st->channels[channel].cfg; - ret = fwnode_property_read_u32(child, "reg", &channel); if (ret) return ret; @@ -863,6 +861,7 @@ static int ad7124_parse_channel_config(struct iio_dev *indio_dev, st->channels[channel].ain = AD7124_CHANNEL_AINP(ain[0]) | AD7124_CHANNEL_AINM(ain[1]);

+ cfg = &st->channels[channel].cfg; cfg->bipolar = fwnode_property_read_bool(child, "bipolar");

ret = fwnode_property_read_u32(child, "adi,reference-select", &tmp);