Explains the IIO Events support.

Signed-off-by: Jorge Marques <jorge.marques@analog.com>
---
 Documentation/iio/ad4062.rst | 42 +++++++++++++++++++++++++++++++++++++++---
 1 file changed, 39 insertions(+), 3 deletions(-)

diff --git a/Documentation/iio/ad4062.rst b/Documentation/iio/ad4062.rst
index 9dda4eb782a02..5afec4d8c2ddb 100644
--- a/Documentation/iio/ad4062.rst
+++ b/Documentation/iio/ad4062.rst
@@ -26,6 +26,7 @@ at the end of the read command.
 The two programmable GPIOS are optional and have a role assigned if present in
 the devicetree ``interrupt-names`` property:
 
+- GP0: Is assigned the role of Threshold Either signal.
 - GP1: Is assigned the role of Data Ready signal.
 
 Device attributes
@@ -74,8 +75,10 @@ Interrupts
 The interrupts are mapped through the ``interrupt-names`` and ``interrupts``
 properties.
 
-The ``interrupt-names`` ``gp1`` entry sets the role of Data Ready signal.
-If it is not present, the driver fallback to enabling the same role as an
+The ``interrupt-names`` ``gp0`` entry sets the role of Threshold signal, and
+entry ``gp1`` the role of Data Ready signal.
+
+If each is not present, the driver fallback to enabling the same role as an
 I3C IBI.
 
 Low-power mode
@@ -98,10 +101,43 @@ latency and internal timings, the sample rate is not configurable. The burst
 averaging mode does impact the effective sample rate, since it increases the
 internal timing to output a single sample.
 
+Threshold events
+================
+
+The ADC supports a monitoring mode to raise threshold events. The driver
+supports a single interrupt for both rising and falling readings.
+
+The feature is enabled/disabled by setting ``thresh_either_en``. During monitor
+mode, the device continuously operates in autonomous mode. Any register access
+puts the device back in configuration mode, due to this, any access disables
+monitor mode.
+
+The following event attributes are available:
+
+.. list-table:: Event attributes
+   :header-rows: 1
+
+   * - Attribute
+     - Description
+   * - ``sampling_frequency``
+     - Frequency used in the monitoring mode, sets the device internal sample
+       rate when the mode is activated.
+   * - ``sampling_frequency_available``
+     - List of available sample rates.
+   * - ``thresh_either_en``
+     - Enable monitoring mode.
+   * - ``thresh_falling_hysteresis``
+     - Set the hysteresis value for the minimum threshold.
+   * - ``thresh_falling_value``
+     - Set the minimum threshold value.
+   * - ``thresh_rising_hysteresis``
+     - Set the hysteresis value for the maximum threshold.
+   * - ``thresh_rising_value``
+     - Set the maximum threshold value.
+
 Unimplemented features
 ======================
 
-- Monitor mode
 - Trigger mode
 - Averaging mode
 - General purpose output

-- 
2.51.1