9a7b7594de
Update bindings to describe support for buffered and unbuffered external voltage references selection, and add adi,internal-ref-microvolt for internal voltage reference selection. Signed-off-by: Liam Beguin <lvb@xiphos.com> Reviewed-by: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/20210815213309.2847711-5-liambeguin@gmail.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>