Re: [PATCH v2 00/11] Add Mobileye EyeQ system controller support (clk, reset, pinctrl)

[Stephen Boyd]

Quoting Théo Lebrun (2024-05-03 07:20:45)
> Hello,
> 
> This builds on previous EyeQ5 system-controller revisions[0], supporting
> EyeQ5, EyeQ6L and EyeQ6H. We expose a few OLB system-controller
> features here:
>  - Clocks: some read-only PLLs derived from main crystal and some
>    divider clocks based on PLLs.
>  - Resets.
>  - Pin controller, only on EyeQ5 (rest will use generic pinctrl-single).
> 
> EyeQ6H is special in that it has seven instances of this
> system-controller. Those are spread around and cannot be seen as a
> single device, hence are exposed as seven DT nodes and seven
> compatibles.
> 
> This revision differs from previous in that it exposes all devices as a
> single DT node. Driver-wise, a MFD registers multiple cells for each
> device. Each driver is still in isolation from one another, each in
> their respective subsystem.

Why can't you use auxiliary device and driver APIs?