dt-bindings: iio: dac: ad7293: add vrefin support
Add support for vrefin supply responsible for providing external
reference to the SAR ADC within the part.
Signed-off-by: Antoniu Miclaus <antoniu.miclaus@analog.com>
Acked-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://patch.msgid.link/20250422085529.4407-1-antoniu.miclaus@analog.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
authored by