Re: [PATCH v6 6/6] iio: dac: ad5504: support scale via output-range-microvolt property

We should probably handle range-sel-gpios here. Otherwise, if a new
DT tries to use it, it will end up falling back to this old wrong
behavior.

Either return an error here that it is not supported. Or implement
it by making IIO_CHAN_INFO_SCALE writable.

Thank you for catching that. For now I'll return an error in that
case, we can always expand it later if needed.

Best Regards,
Taha Ed-Dafili