Re: [PATCH v2 1/3] dt-bindings: regulator: Add RPMI voltage service bindings

[Mark Brown]

On Fri, Sep 25, 2026 at 05:18:08PM +0200, Krzysztof Kozlowski wrote:
> On 25/09/2026 09:14, Joshua Yeong wrote:

> > While the above method works but I'm trying to get the entire simplify to the following.

> > user-app-b {
> > 	compatible = "...";
> > 	voltage-domains = <&rpmi-voltage 0x01>;

> I see. Why power domains do not fit here?

The spec seems to map very clearly onto voltage regulators, it describes
voltages in mV:

  https://github.com/riscv-non-isa/riscv-rpmi/blob/main/src/srvgrp-voltage.adoc

I really don't see any problem describing this as regulators, it seems
to fulfil exactly the same role as SCMI regulators, supporting things
like SD slots where the OS genuinely needs to control voltages on a
mostly system power controller system.

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