On 10/24/24 3:16 AM, Julien Stephan wrote: > 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 | 18 ++++++++++++++++++ > 1 file changed, 18 insertions(+) > > diff --git a/Documentation/iio/ad7380.rst b/Documentation/iio/ad7380.rst > index 6f70b49b9ef27c1ac32acaefecd1146e5c8bd6cc..ae408ff2fa9c97427a9fef57020fb54203d2d33e 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 +129,16 @@ 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 pin selectable gain in front of each adc. The appropriate If we are doing a v4 anyway, it would be nice to use caps for acronyms like ADAQ and ADC here and elsewhere. > +gain is selectable from device tree using the ``adi,gain-milli`` property. > +Refer to the typical connection diagrams section of the datasheet for pin > +wiring. > + > + > Unimplemented features > ---------------------- > >
