patch "iio: adc: rohm-bd79124: Fix channel initialization" added to char-misc-linus

patch "iio: adc: rohm-bd79124: Fix channel initialization" added to char-misc-linus

[gregkh]

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

    iio: adc: rohm-bd79124: Fix channel initialization

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 edd56c01d174153bf90160279742ff6f3ad27a93 Mon Sep 17 00:00:00 2001
From: Matti Vaittinen <mazziesaccount@gmail.com>
Date: Mon, 10 Aug 2026 10:50:21 +0300
Subject: iio: adc: rohm-bd79124: Fix channel initialization

The alarm limit register on BD79124 span to two consecutive registers.
The first register for high-limit containing also hysteresis
configuration. The initialization in driver writes only one 8-bit
register, overwriting the hysteresis and leaving the other limit
register uninitialized.

Fix the limit initialization by using the bd79124_write_int_to_reg(),
which correctly initializes the limit on both of the registers.

Fixes: 3f57a3b9ab74 ("iio: adc: Support ROHM BD79124 ADC")
Signed-off-by: Matti Vaittinen <mazziesaccount@gmail.com>
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <jonathan.cameron@oss.qualcomm.com>
---
 drivers/iio/adc/rohm-bd79124.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/iio/adc/rohm-bd79124.c b/drivers/iio/adc/rohm-bd79124.c
index eab5286763a7..2c031a5e9eb0 100644
--- a/drivers/iio/adc/rohm-bd79124.c
+++ b/drivers/iio/adc/rohm-bd79124.c
@@ -919,13 +919,13 @@ static int bd79124_chan_init(struct bd79124_data *data, int channel)
 {
 	int ret;
 
-	ret = regmap_write(data->map, BD79124_GET_HIGH_LIMIT_REG(channel),
-			   BD79124_HIGH_LIMIT_MAX);
+	ret = bd79124_write_int_to_reg(data, BD79124_GET_HIGH_LIMIT_REG(channel),
+				       BD79124_HIGH_LIMIT_MAX);
 	if (ret)
 		return ret;
 
-	return regmap_write(data->map, BD79124_GET_LOW_LIMIT_REG(channel),
-			    BD79124_LOW_LIMIT_MIN);
+	return bd79124_write_int_to_reg(data, BD79124_GET_LOW_LIMIT_REG(channel),
+					BD79124_LOW_LIMIT_MIN);
 }
 
 static int bd79124_get_gpio_pins(const struct iio_chan_spec *cs, int num_channels)
-- 
2.55.0