Re: [PATCH V2 1/2] dt-bindings: mailbox: Document qcom,tmel-qmp

[Krzysztof Kozlowski <krzk@kernel.org>]

On 03/01/2025 19:34, Sricharan Ramabadhran wrote:
>>> +description:
>>> +  TMEL SS provides different kinds of services like secureboot, remote image
>>> +  authentication, key management, crypto, OEM provisioning etc. This patch adds
>>> +  support for remote image authentication. Support for rest of the services can
>>> +  be added.
>>> +
>>> +  The QMP mailbox is the primary means of communication between TMEL SS and
>>> +  other subsystem on the SoC. A dedicated pair of inbound and outbound mailboxes
>>> +  is implemented for each subsystem/external execution environment which needs to
>>> +  communicate with TMEL for security services. The inbound mailboxes are used to
>>> +  send IPC requests to TMEL, which are then processed by TMEL firmware and
>>> +  accordingly the responses are sent to the requestor via outbound mailboxes.
>>> +
>>> +properties:
>>> +  compatible:
>>> +    items:
>>> +      - enum:
>>> +          - qcom,ipq5424-tmel-qmp
>>
>>
>> Why qmp? Can TMEL on IPQ5424 be anything else? Can TMEL be SMEM or using
>> any other remoteproc?
>>
> TMEL on IPQ5424 uses only QMP protocol for communication.


Then keep just "tmel". It completely defines this device.

> 
Best regards,
Krzysztof