[PATCH v10 11/11] Documentation: ABI: testing: add common ABI file for iio/frequency

Rodrigo Alencar via B4 Relay
2026-04-15T09:52:18Z

Add ABI documentation file for PLL/DDS devices with frequency_resolution
sysfs entry attribute used by both ADF4350 and ADF41513.

Signed-off-by: Rodrigo Alencar <rodrigo.alencar@analog.com>
---
Documentation/ABI/testing/sysfs-bus-iio-frequency | 11 +++++++++++
Documentation/ABI/testing/sysfs-bus-iio-frequency-adf4350 | 10 ----------
2 files changed, 11 insertions(+), 10 deletions(-)

diff --git a/Documentation/ABI/testing/sysfs-bus-iio-frequency b/Documentation/ABI/testing/sysfs-bus-iio-frequency
new file mode 100644
index 000000000000..1ce8ae578fd6
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-bus-iio-frequency
@@ -0,0 +1,11 @@
+What: /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_frequency_resolution
+KernelVersion: 6.20
+Contact: linux-iio@vger.kernel.org
+Description:
+ Stores channel Y frequency resolution/channel spacing in Hz for PLL
+ devices. The given value directly influences the operating mode when
+ fractional-N synthesis is required, as it derives values for
+ configurable modulus parameters used in the calculation of the output
+ frequency. It is assumed that the algorithm that is used to compute
+ the various dividers, is able to generate proper values for multiples
+ of channel spacing.
diff --git a/Documentation/ABI/testing/sysfs-bus-iio-frequency-adf4350 b/Documentation/ABI/testing/sysfs-bus-iio-frequency-adf4350
index 1254457a726e..76987a119feb 100644
--- a/Documentation/ABI/testing/sysfs-bus-iio-frequency-adf4350
+++ b/Documentation/ABI/testing/sysfs-bus-iio-frequency-adf4350
@@ -1,13 +1,3 @@
-What: /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_frequency_resolution
-KernelVersion: 3.4.0
-Contact: linux-iio@vger.kernel.org
-Description:
- Stores channel Y frequency resolution/channel spacing in Hz.
- The value given directly influences the MODULUS used by
- the fractional-N PLL. It is assumed that the algorithm
- that is used to compute the various dividers, is able to
- generate proper values for multiples of channel spacing.
-
What: /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_refin_frequency
KernelVersion: 3.4.0
Contact: linux-iio@vger.kernel.org

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2.43.0