Re: [PATCH 09/16] dt-bindings: firmware: arm,scmi: Extend bindings for protocol@13

From: Rob Herring
Date: Wed Jun 14 2023 - 19:00:54 EST


On Wed, Jun 07, 2023 at 02:46:21PM +0200, Ulf Hansson wrote:
> The protocol@13 node is describing the performance scaling option for the
> ARM SCMI interface, as a clock provider. This is unnecessary limiting, as
> performance scaling is in many cases not limited to switching a clock's
> frequency.
>
> Therefore, let's extend the binding so the interface can be modelled as a
> generic "performance domain" too. The common way to describe this, is to
> use the "power-domain" bindings, so let's use that.

What's wrong with the performance-domain binding?

>
> Cc: Rob Herring <robh+dt@xxxxxxxxxx>
> Cc: Krzysztof Kozlowski <krzysztof.kozlowski+dt@xxxxxxxxxx>
> Cc: Conor Dooley <conor+dt@xxxxxxxxxx>
> Cc: devicetree@xxxxxxxxxxxxxxx
> Signed-off-by: Ulf Hansson <ulf.hansson@xxxxxxxxxx>
> ---
> Documentation/devicetree/bindings/firmware/arm,scmi.yaml | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/Documentation/devicetree/bindings/firmware/arm,scmi.yaml b/Documentation/devicetree/bindings/firmware/arm,scmi.yaml
> index 5824c43e9893..cff9d1e4cea1 100644
> --- a/Documentation/devicetree/bindings/firmware/arm,scmi.yaml
> +++ b/Documentation/devicetree/bindings/firmware/arm,scmi.yaml
> @@ -145,8 +145,8 @@ properties:
> '#clock-cells':
> const: 1
>
> - required:
> - - '#clock-cells'
> + '#power-domain-cells':
> + const: 1
>
> protocol@14:
> $ref: '#/$defs/protocol-node'
> --
> 2.34.1
>