From 9ef53b3540338cde4fe55a5cd94dc1deabad05fe Mon Sep 17 00:00:00 2001 From: Olivier Moysan Date: Thu, 2 Oct 2025 13:22:49 +0200 Subject: [PATCH] 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 commit 8a6b7989ff0cd0a95c93be1927f2af7ad10f28de upstream. 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 Reviewed-by: Nuno Sá Cc: Signed-off-by: Jonathan Cameron Signed-off-by: Greg Kroah-Hartman --- 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 2037f73426d4..5db7f509ad57 100644 --- a/drivers/iio/adc/stm32-dfsdm-adc.c +++ b/drivers/iio/adc/stm32-dfsdm-adc.c @@ -721,9 +721,8 @@ 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);