Documentation: ABI: added filter mode doc in sysfs-bus-iio

The filter mode / filter type property is used for ad4130
and ad7779 drivers, therefore the ABI doc file for ad4130
was removed, merging both of them in the sysfs-bus-iio.
Since one of the drivers is available from 6.1, the version
has been set to 6.1 for these attributes.

Signed-off-by: Ramona Alexandra Nechita <ramona.nechita@analog.com>
Reviewed-by: Andy Shevchenko <andy@kernel.org>
Link: https://patch.msgid.link/20241014143204.30195-3-ramona.nechita@analog.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

2 files changed, 24 insertions, 46 deletions

diff --git a/Documentation/ABI/testing/sysfs-bus-iio b/Documentation/ABI/testing/sysfs-bus-iio
index 89943c2d54e8..9641dd2a1e4b 100644
--- a/Documentation/ABI/testing/sysfs-bus-iio
+++ b/Documentation/ABI/testing/sysfs-bus-iio
@@ -2268,6 +2268,30 @@ Description:
 		An example format is 16-bytes, 2-digits-per-byte, HEX-string
 		representing the sensor unique ID number.
 
+What:		/sys/bus/iio/devices/iio:deviceX/filter_type_available
+What:		/sys/bus/iio/devices/iio:deviceX/in_voltage-voltage_filter_mode_available
+KernelVersion:	6.1
+Contact:	linux-iio@vger.kernel.org
+Description:
+		Reading returns a list with the possible filter modes. 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.
+		* "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.
+
 What:		/sys/.../events/in_proximity_thresh_either_runningperiod
 KernelVersion:	6.6
 Contact:	linux-iio@vger.kernel.org
diff --git a/Documentation/ABI/testing/sysfs-bus-iio-adc-ad4130 b/Documentation/ABI/testing/sysfs-bus-iio-adc-ad4130
deleted file mode 100644
index f24ed6687e90..000000000000
--- a/Documentation/ABI/testing/sysfs-bus-iio-adc-ad4130
+++ /dev/null
@@ -1,46 +0,0 @@
-What:		/sys/bus/iio/devices/iio:deviceX/in_voltage-voltage_filter_mode_available
-KernelVersion:  6.2
-Contact:	linux-iio@vger.kernel.org
-Description:
-		Reading returns a list with the possible filter modes.
-
-		  * "sinc4"       - Sinc 4. Excellent noise performance. Long
-                    1st conversion time. No natural 50/60Hz rejection.
-
-		  * "sinc4+sinc1" - Sinc4 + averaging by 8. Low 1st conversion
-		    time.
-
-		  * "sinc3"	      - Sinc3. Moderate 1st conversion time.
-		    Good noise performance.
-
-		  * "sinc3+rej60" - Sinc3 + 60Hz rejection. At a sampling
-		    frequency of 50Hz, achieves simultaneous 50Hz and 60Hz
-		    rejection.
-
-		  * "sinc3+sinc1" - Sinc3 + averaging by 8. Low 1st conversion
-		    time. Best used with a sampling frequency of at least
-		    216.19Hz.
-
-		  * "sinc3+pf1"   - Sinc3 + Post Filter 1. 53dB rejection @
-		    50Hz, 58dB rejection @ 60Hz.
-
-		  * "sinc3+pf2"   - Sinc3 + Post Filter 2. 70dB rejection @
-		    50Hz, 70dB rejection @ 60Hz.
-
-		  * "sinc3+pf3"   - Sinc3 + Post Filter 3. 99dB rejection @
-		    50Hz, 103dB rejection @ 60Hz.
-
-		  * "sinc3+pf4"   - Sinc3 + Post Filter 4. 103dB rejection @
-		    50Hz, 109dB rejection @ 60Hz.
-
-What:		/sys/bus/iio/devices/iio:deviceX/in_voltageY-voltageZ_filter_mode
-KernelVersion:  6.2
-Contact:	linux-iio@vger.kernel.org
-Description:
-		Set the filter mode of the differential channel. When the filter
-		mode changes, the in_voltageY-voltageZ_sampling_frequency and
-		in_voltageY-voltageZ_sampling_frequency_available attributes
-		might also change to accommodate the new filter mode.
-		If the current sampling frequency is out of range for the new
-		filter mode, the sampling frequency will be changed to the
-		closest valid one.