linux-kernel - [PATCH v2 3/3] Documentation: ABI: IIO: Drop AD4130 specific filter_type

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Message-ID: <5b86acb56fd2aa337223a6467c1caf2a06682fcd.1736261048.git.marcelo.schmitt@analog.com>
Date: Tue, 7 Jan 2025 12:13:58 -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 v2 3/3] Documentation: ABI: IIO: Drop AD4130 specific filter_type_available options

The only driver exporting filter_type_available attribute is ad7779 and it
only supports sinc3 and sinc5 filters. Remove options that are not
presented through filter_type_available attribute.

Signed-off-by: Marcelo Schmitt <marcelo.schmitt@...log.com>
---
Maybe this is not worth it (or desirable?) since the options may come back in
the future if new drivers happen to need them.

 Documentation/ABI/testing/sysfs-bus-iio | 21 +++++----------------
 1 file changed, 5 insertions(+), 16 deletions(-)

diff --git a/Documentation/ABI/testing/sysfs-bus-iio b/Documentation/ABI/testing/sysfs-bus-iio
index 1ddf3d7dd2b3..946c519f8687 100644
--- a/Documentation/ABI/testing/sysfs-bus-iio
+++ b/Documentation/ABI/testing/sysfs-bus-iio
@@ -2280,24 +2280,13 @@ What:		/sys/bus/iio/devices/iio:deviceX/filter_type_available
 KernelVersion:	6.1
 Contact:	linux-iio@...r.kernel.org
 Description:
-		Reading returns a list with the possible filter modes. Options
-		for the attribute:
+		Lists all available filter types. Possible options for the
+		attribute:
 
-		* "sinc3" - The digital sinc3 filter. Moderate 1st
-		  conversion time. Good noise performance.
-		* "sinc4" - Sinc 4. Excellent noise performance. Long
-		  1st conversion time.
+		* "sinc3" - The digital sinc3 filter. Moderate 1st conversion
+		  time. Good noise performance.
 		* "sinc5" - The digital sinc5 filter. Excellent noise
-		  performance
-		* "sinc4+sinc1" - Sinc4 + averaging by 8. Low 1st conversion
-		  time.
-		* "sinc3+rej60" - Sinc3 + 60Hz rejection.
-		* "sinc3+sinc1" - Sinc3 + averaging by 8. Low 1st conversion
-		  time.
-		* "sinc3+pf1" - Sinc3 + device specific Post Filter 1.
-		* "sinc3+pf2" - Sinc3 + device specific Post Filter 2.
-		* "sinc3+pf3" - Sinc3 + device specific Post Filter 3.
-		* "sinc3+pf4" - Sinc3 + device specific Post Filter 4.
+		  performance.
 
 What:		/sys/bus/iio/devices/iio:deviceX/filter_type
 KernelVersion:	6.1
-- 
2.45.2