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Message-ID: <61a87b288552cad9e925a9af4eb33022d14a4617.1738680728.git.marcelo.schmitt@analog.com>
Date: Tue, 4 Feb 2025 12:01:14 -0300
From: Marcelo Schmitt <marcelo.schmitt@...log.com>
To: <linux-iio@...r.kernel.org>, <linux-kernel@...r.kernel.org>
CC: <cosmin.tanislav@...log.com>, <jic23@...nel.org>, <lars@...afoo.de>,
        <marcelo.schmitt@...log.com>, <dlechner@...libre.com>,
        <granquet@...libre.com>, <u.kleine-koenig@...libre.com>,
        <marcelo.schmitt1@...il.com>
Subject: [PATCH v4 3/3] iio: adc: ad4130: Add filter_type attributes

Make filter control also available through filter_type attributes which are
now standardized in main IIO ABI documentation.

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

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),
 	{ }
 };
 
-- 
2.47.2


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