Adding documentation for adaq4370-4 and adaq4380-4 supported devices. In particular, document the reference voltage mechanism and the gain parameter that are specific to adaq devices. Signed-off-by: Julien Stephan <jstephan@xxxxxxxxxxxx> --- Documentation/iio/ad7380.rst | 15 +++++++++++++++ 1 file changed, 15 insertions(+) diff --git a/Documentation/iio/ad7380.rst b/Documentation/iio/ad7380.rst index 6f70b49b9ef2..eeffd19db642 100644 --- a/Documentation/iio/ad7380.rst +++ b/Documentation/iio/ad7380.rst @@ -27,6 +27,8 @@ The following chips are supported by this driver: * `AD7386-4 <https://www.analog.com/en/products/ad7386-4.html>`_ * `AD7387-4 <https://www.analog.com/en/products/ad7387-4.html>`_ * `AD7388-4 <https://www.analog.com/en/products/ad7388-4.html>`_ +* `ADAQ4370-4 <https://www.analog.com/en/products/adaq4370-4.html>`_ +* `ADAQ4380-4 <https://www.analog.com/en/products/adaq4380-4.html>`_ Supported features @@ -47,6 +49,12 @@ ad7380-4 ad7380-4 supports only an external reference voltage (2.5V to 3.3V). It must be declared in the device tree as ``refin-supply``. +adaq devices +~~~~~~~~~~~~ + +adaq4370-4 and adaq4380-4 don't have an external reference, but use a 3V +internal reference derived from one of its supplies (``refin-supply``) + All other devices from ad738x family ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ @@ -121,6 +129,13 @@ Example for AD7386/7/8 (2 channels parts): When enabling sequencer mode, the effective sampling rate is divided by two. + +Gain (adaq devices only) +~~~~~~~~~~~~~~~~~~~~~~~~ + +adaq devices have a configurable gain in front of each adc. The appropriate gain +is selectable from device tree using the ``adi,gain-milli`` property. + Unimplemented features ---------------------- -- 2.46.0
