This is a note to let you know that I've just added the patch titled
iio: adc: stm32-dfsdm: fix st,adc-alt-channel property handling
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 8a6b7989ff0cd0a95c93be1927f2af7ad10f28de Mon Sep 17 00:00:00 2001 From: Olivier Moysan olivier.moysan@foss.st.com Date: Thu, 2 Oct 2025 13:22:49 +0200 Subject: iio: adc: stm32-dfsdm: fix st,adc-alt-channel property handling MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit
Initially st,adc-alt-channel property was defined as an enum in the DFSDM binding. The DFSDM binding has been changed to use the new IIO backend framework, along with the adoption of IIO generic channels. In this new binding st,adc-alt-channel is defined as a boolean property, but it is still handled has an enum in DFSDM driver. Fix st,adc-alt-channel property handling in DFSDM driver.
Fixes: 3208fa0cd919 ("iio: adc: stm32-dfsdm: adopt generic channels bindings") Signed-off-by: Olivier Moysan olivier.moysan@foss.st.com Reviewed-by: Nuno Sá nuno.sa@analog.com Cc: Stable@vger.kernel.org Signed-off-by: Jonathan Cameron Jonathan.Cameron@huawei.com --- drivers/iio/adc/stm32-dfsdm-adc.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-)
diff --git a/drivers/iio/adc/stm32-dfsdm-adc.c b/drivers/iio/adc/stm32-dfsdm-adc.c index 74b1b4dc6e81..9664b9bd75d4 100644 --- a/drivers/iio/adc/stm32-dfsdm-adc.c +++ b/drivers/iio/adc/stm32-dfsdm-adc.c @@ -725,9 +725,8 @@ static int stm32_dfsdm_generic_channel_parse_of(struct stm32_dfsdm *dfsdm, } df_ch->src = val;
- ret = fwnode_property_read_u32(node, "st,adc-alt-channel", &df_ch->alt_si); - if (ret != -EINVAL) - df_ch->alt_si = 0; + if (fwnode_property_present(node, "st,adc-alt-channel")) + df_ch->alt_si = 1;
if (adc->dev_data->type == DFSDM_IIO) { backend = devm_iio_backend_fwnode_get(&indio_dev->dev, NULL, node);