Re: [PATCH v3 1/8] dt-bindings: clock: renesas: Split out RZ/T2H CPG binding

[Lad, Prabhakar]

Hi Krzysztof,

On Mon, Jul 20, 2026 at 6:55 AM Krzysztof Kozlowski <krzk@xxxxxxxxxx> wrote:
>
> On Thu, Jul 16, 2026 at 01:34:27PM +0100, Prabhakar wrote:
> > From: Lad Prabhakar <prabhakar.mahadev-lad.rj@xxxxxxxxxxxxxx>
> >
> > Move the RZ/T2H and RZ/N2H clock controller bindings from the generic
> > renesas,cpg-mssr.yaml schema into a dedicated binding.
> >
> > Unlike the traditional Renesas CPG/MSSR block, the RZ/T2H and RZ/N2H
> > system controller integrates additional functionality beyond clock and
> > module-stop control, including reset control, clock monitor support,
> > write-protection registers and other system management features.
>
> Nothing of above differences got reflected in the code, so I do not
> understand this reasoning. Binding is exactly the same as the old one.
>
A syscon regmap is implemented [0] as part of the RZ/T2H CPG driver.
Since the RZ/T2H clock driver uses this syscon wrapper, a function
pointer is implemented to handle the RZ/T2H-specific configuration.

Also, as the initial implementation used separate device tree nodes,
Geert suggested splitting this binding schema off into a dedicated
file [1].

[0] https://lore.kernel.org/all/20260716123434.2576253-3-prabhakar.mahadev-lad.rj@xxxxxxxxxxxxxx/
[1] https://lore.kernel.org/all/CAMuHMdU62updtKeBBk-vO3YP+qaWTGqHQnzKvFJbrz4J5eEPMQ@xxxxxxxxxxxxxx/
Cheers, Prabhakar

Cheers,
Prabhakar