linux-kernel - Re: [PATCH v2 2/7] dt-bindings: firmware: Add i.MX95 SCMI LMM and CPU protocol

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Message-ID: <20250219214608.GA3003788-robh@kernel.org>
Date: Wed, 19 Feb 2025 15:46:08 -0600
From: Rob Herring <robh@...nel.org>
To: "Peng Fan (OSS)" <peng.fan@....nxp.com>
Cc: Sudeep Holla <sudeep.holla@....com>,
	Cristian Marussi <cristian.marussi@....com>,
	Shawn Guo <shawnguo@...nel.org>,
	Sascha Hauer <s.hauer@...gutronix.de>,
	Pengutronix Kernel Team <kernel@...gutronix.de>,
	Fabio Estevam <festevam@...il.com>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Dan Carpenter <dan.carpenter@...aro.org>,
	linux-kernel@...r.kernel.org, arm-scmi@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org, imx@...ts.linux.dev,
	devicetree@...r.kernel.org, Peng Fan <peng.fan@....com>
Subject: Re: [PATCH v2 2/7] dt-bindings: firmware: Add i.MX95 SCMI LMM and
 CPU protocol

On Wed, Feb 12, 2025 at 03:40:24PM +0800, Peng Fan (OSS) wrote:
> From: Peng Fan <peng.fan@....com>
> 
> Add i.MX SCMI Extension protocols bindings for:
> - Logic Machine Management(LMM) Protocol
>   intended for boot, shutdown, and reset of other logical machines (LM).
>   It is usually used to allow one LM to manager another used as an offload
>   or accelerator engine..
> - CPU Protocol.
>   allows an agent to start or stop a CPU. It is used to manage auxiliary
>   CPUs in an LM (e.g. additional cores in an AP cluster).
> 
> Signed-off-by: Peng Fan <peng.fan@....com>
> ---
>  .../devicetree/bindings/firmware/nxp,imx95-scmi.yaml     | 16 ++++++++++++++++
>  1 file changed, 16 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/firmware/nxp,imx95-scmi.yaml b/Documentation/devicetree/bindings/firmware/nxp,imx95-scmi.yaml
> index 1a95010a546b14b1d3d97aa990c0305a551f2620..75f63819285b191a815dc4287e34d299983b1c40 100644
> --- a/Documentation/devicetree/bindings/firmware/nxp,imx95-scmi.yaml
> +++ b/Documentation/devicetree/bindings/firmware/nxp,imx95-scmi.yaml
> @@ -11,6 +11,14 @@ maintainers:
>    - Peng Fan <peng.fan@....com>
>  
>  properties:
> +  protocol@80:
> +    $ref: '/schemas/firmware/arm,scmi.yaml#/$defs/protocol-node'
> +    unevaluatedProperties: false

Please add 'description' to these to say what the protocol is.

> +
> +    properties:
> +      reg:
> +        const: 0x80
> +
>    protocol@81:
>      $ref: '/schemas/firmware/arm,scmi.yaml#/$defs/protocol-node'
>      unevaluatedProperties: false
> @@ -19,6 +27,14 @@ properties:
>        reg:
>          const: 0x81
>  
> +  protocol@82:
> +    $ref: '/schemas/firmware/arm,scmi.yaml#/$defs/protocol-node'
> +    unevaluatedProperties: false
> +
> +    properties:
> +      reg:
> +        const: 0x82
> +
>    protocol@84:
>      $ref: '/schemas/firmware/arm,scmi.yaml#/$defs/protocol-node'
>      unevaluatedProperties: false
> 
> -- 
> 2.37.1
>