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

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Message-ID: <20250224030157.GB9876@nxa18884-linux>
Date: Mon, 24 Feb 2025 11:01:57 +0800
From: Peng Fan <peng.fan@....nxp.com>
To: Rob Herring <robh@...nel.org>
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

Hi Rob,
On Wed, Feb 19, 2025 at 03:46:08PM -0600, Rob Herring wrote:
>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.

Waiting for comments on driver changes, then I will fix together in next
version for protocol 80,82 both.

Thanks,
Peng

>
>> +
>> +    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
>>