Re: [PATCH v3 01/12] dt-bindings: clock: renesas,r8a78000-cpg: Add renesas,scmi-firmware property
From: Sudeep Holla <sudeep.holla@kernel.org>
Date: 2026-09-04 14:03:12
Also in:
arm-scmi, linux-clk, linux-devicetree, linux-pm, linux-renesas-soc, lkml
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