[PATCH v6 15/16] iio: ABI: add docs for ad9910 sysfs entries

[Rodrigo Alencar via B4 Relay]

From: Rodrigo Alencar <rodrigo.alencar@xxxxxxxxxx>

Add custom ABI documentation file for the DDS AD9910 with sysfs entries to
control some parameters from the Digital Ramp Generator and OSK engine.

Signed-off-by: Rodrigo Alencar <rodrigo.alencar@xxxxxxxxxx>
---
 .../ABI/testing/sysfs-bus-iio-frequency-ad9910     | 27 ++++++++++++++++++++++
 MAINTAINERS                                        |  1 +
 2 files changed, 28 insertions(+)

diff --git a/Documentation/ABI/testing/sysfs-bus-iio-frequency-ad9910 b/Documentation/ABI/testing/sysfs-bus-iio-frequency-ad9910
new file mode 100644
index 000000000000..a54afeb64302
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-bus-iio-frequency-ad9910
@@ -0,0 +1,27 @@
+What:		/sys/bus/iio/devices/iio:deviceX/out_altcurrentY_dwell_en
+KernelVersion:
+Contact:	linux-iio@xxxxxxxxxxxxxxx
+Description:
+		For a channel that produces parametric sweeps, this attribute controls
+		the sweep behavior at the configured limit. It enables dwell mode at a
+		sweep limit when set to 1, i.e., after the sweep is complete the output
+		value stays at the limit. Otherwise (setting this value to 0), the sweep
+		may stop or restart from the initial position, or even continue by
+		reversing the sweep direction.
+
+What:		/sys/bus/iio/devices/iio:deviceX/out_altcurrentY_raw_roc
+KernelVersion:
+Contact:	linux-iio@xxxxxxxxxxxxxxx
+Description:
+		For a channel that produces parametric sweeps, this attribute controls
+		the rate of change of the parameter in raw units per second (slope).
+		This value may be influenced by the channel sampling_frequency attribute
+		if available. Multiplying this value by the scale attribute of the
+		channel yields the rate of change in physical units per second.
+
+What:		/sys/bus/iio/devices/iio:deviceX/out_altcurrentY_raw_roc_available
+KernelVersion:
+Contact:	linux-iio@xxxxxxxxxxxxxxx
+Description:
+		Lists the available roc values for the channel. Values are
+		space-separated in ascending order.
diff --git a/MAINTAINERS b/MAINTAINERS
index 9b8cef7923ca..a76a15f02183 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -1650,6 +1650,7 @@ M:	Rodrigo Alencar <rodrigo.alencar@xxxxxxxxxx>
 L:	linux-iio@xxxxxxxxxxxxxxx
 S:	Supported
 W:	https://ez.analog.com/linux-software-drivers
+F:	Documentation/ABI/testing/sysfs-bus-iio-frequency-ad9910
 F:	Documentation/devicetree/bindings/iio/frequency/adi,ad9910.yaml
 F:	drivers/iio/frequency/ad9910.c
 

-- 
2.43.0