Re: [PATCH v3 1/6] dt-bindings: iio: adc: ad7768-1: Document multidevice support

[David Lechner]

On 8/17/26 6:32 PM, Jonathan Santos wrote:
> The AD7768-1 family supports aggregating up to four devices on a single
> SPI controller, with each device occupying a dedicated CS line and a
> single data lane.
> 
> Extend the `reg` property to accept up to 4 entries (one per device).
> 
> Add `spi-rx-bus-width` property to declare the per-device lane count.
> Since each lane is bound to one CS, the number of entries must match
> `reg`. Make it required when `reg` has more than one entry.
> 
I don't see why we should have to require the spi-rx-bus-width property.
It seems logical that if it is not present, then we would assume one
lane per CS. This is already how bindings work.

For example, adi,ad4080 and ge,achc have multiple CS lines and don't
require any bus width properties.