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[v4,3/3] iio: adc: ad4130: Add filter_type attributes

Message ID 61a87b288552cad9e925a9af4eb33022d14a4617.1738680728.git.marcelo.schmitt@analog.com (mailing list archive)
State New
Headers show
Series Re-add filter_type/filter_mode | expand

Commit Message

Marcelo Schmitt Feb. 4, 2025, 3:01 p.m. UTC 
Make filter control also available through filter_type attributes which are
now standardized in main IIO ABI documentation.

Suggested-by: David Lechner <dlechner@baylibre.com>
Signed-off-by: Marcelo Schmitt <marcelo.schmitt@analog.com>
Reviewed-by: David Lechner <dlechner@baylibre.com>
---
 drivers/iio/adc/ad4130.c | 7 +++++++
 1 file changed, 7 insertions(+)
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Patch

diff --git a/drivers/iio/adc/ad4130.c b/drivers/iio/adc/ad4130.c
index de32cc9d18c5..acc241cc0a7a 100644
--- a/drivers/iio/adc/ad4130.c
+++ b/drivers/iio/adc/ad4130.c
@@ -939,9 +939,16 @@  static const struct iio_enum ad4130_filter_mode_enum = {
 };
 
 static const struct iio_chan_spec_ext_info ad4130_filter_mode_ext_info[] = {
+	/*
+	 * Intentional duplication of attributes to keep backwards compatibility
+	 * while standardizing over the main IIO ABI for digital filtering.
+	 */
 	IIO_ENUM("filter_mode", IIO_SEPARATE, &ad4130_filter_mode_enum),
 	IIO_ENUM_AVAILABLE("filter_mode", IIO_SHARED_BY_TYPE,
 			   &ad4130_filter_mode_enum),
+	IIO_ENUM("filter_type", IIO_SEPARATE, &ad4130_filter_mode_enum),
+	IIO_ENUM_AVAILABLE("filter_type", IIO_SHARED_BY_TYPE,
+			   &ad4130_filter_mode_enum),
 	{ }
 };