[PATCH v3 01/12] dt-bindings: clock: renesas,r8a78000-cpg: Add renesas,scmi-firmware property

Sudeep Holla sudeep.holla at kernel.org
Fri Sep 4 07:03:05 PDT 2026


On Wed, Sep 02, 2026 at 01:29:17PM +0200, Geert Uytterhoeven wrote:
> On systems using the ARM System Control and Management Interface (SCMI),
> the Clock Pulse Generator hardware registers must not be accessed
> directly.  Instead, the SCMI message protocol must be used for inquiry,
> configuration, and control of clocks.
>

Why is this node needed in the devicetree at all or why is it not disabled
so that any driver in the OSPM is not probed at all.

> Add a "renesas,scmi-firmware" property to distinguish between systems
> with and without SCMI, and to indicate which SCMI firmware interface
> provider to communicate with.
> 

I still don't see the need for this if you disable the node, so still
NACK. Sorry if I have missed some discussions, please present the information
as part of this patch in the commit log if not the actual binding itself.

-- 
Regards,
Sudeep



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