patch "iio: adc: ad7173: fix setting ODR in probe" added to char-misc-next

patch "iio: adc: ad7173: fix setting ODR in probe" added to char-misc-next

[gregkh]

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

    iio: adc: ad7173: fix setting ODR in probe

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-next 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 also be merged in the next major kernel release
during the merge window.

If you have any questions about this process, please let me know.


From 6fa908abd19cc35c205f343b79c67ff38dbc9b76 Mon Sep 17 00:00:00 2001
From: David Lechner <dlechner@baylibre.com>
Date: Thu, 10 Jul 2025 15:43:40 -0500
Subject: iio: adc: ad7173: fix setting ODR in probe

Fix the setting of the ODR register value in the probe function for
AD7177. The AD7177 chip has a different ODR value after reset than the
other chips (0x7 vs. 0x0) and 0 is a reserved value on that chip.

The driver already has this information available in odr_start_value
and uses it when checking valid values when writing to the
sampling_frequency attribute, but failed to set the correct initial
value in the probe function.

Fixes: 37ae8381ccda ("iio: adc: ad7173: add support for additional models")
Signed-off-by: David Lechner <dlechner@baylibre.com>
Link: https://patch.msgid.link/20250710-iio-adc-ad7173-fix-setting-odr-in-probe-v1-1-78a100fec998@baylibre.com
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
---
 drivers/iio/adc/ad7173.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/iio/adc/ad7173.c b/drivers/iio/adc/ad7173.c
index 2173455c0169..4413207be28f 100644
--- a/drivers/iio/adc/ad7173.c
+++ b/drivers/iio/adc/ad7173.c
@@ -1589,6 +1589,7 @@ static int ad7173_fw_parse_channel_config(struct iio_dev *indio_dev)
 		chan_st_priv->cfg.bipolar = false;
 		chan_st_priv->cfg.input_buf = st->info->has_input_buf;
 		chan_st_priv->cfg.ref_sel = AD7173_SETUP_REF_SEL_INT_REF;
+		chan_st_priv->cfg.odr = st->info->odr_start_value;
 		chan_st_priv->cfg.openwire_comp_chan = -1;
 		st->adc_mode |= AD7173_ADC_MODE_REF_EN;
 		if (st->info->data_reg_only_16bit)
@@ -1655,7 +1656,7 @@ static int ad7173_fw_parse_channel_config(struct iio_dev *indio_dev)
 		chan->scan_index = chan_index;
 		chan->channel = ain[0];
 		chan_st_priv->cfg.input_buf = st->info->has_input_buf;
-		chan_st_priv->cfg.odr = 0;
+		chan_st_priv->cfg.odr = st->info->odr_start_value;
 		chan_st_priv->cfg.openwire_comp_chan = -1;
 
 		chan_st_priv->cfg.bipolar = fwnode_property_read_bool(child, "bipolar");
-- 
2.50.1