[PATCH 1/3] dt-bindings: firmware: google,gs101-acpm-ipc: add clocks node

Krzysztof Kozlowski krzk at kernel.org
Sun Aug 24 10:00:22 PDT 2025


On 22/08/2025 17:03, Tudor Ambarus wrote:
> Hi, Rob,
> 
> On 8/22/25 2:55 PM, Rob Herring wrote:
>> On Tue, Aug 19, 2025 at 11:45:36AM +0000, Tudor Ambarus wrote:
>>> The firmware exposes clocks that can be controlled via the ACPM
>>> interface. Describe the clocks exposed by the APM firmware.
>>
>> ACPM? APM is Advanced Power Management aka the predecessor to ACPI?
> 
> ACPM (Alive Clock and Power Manager) is a firmware that operates on the     

Please unwrap the acronym in one place of bindings commit msgs.

> APM (Active Power Management) module that handles overall power management                              
> activities. APM is built around a GREBE processor.
> 
> In linux we have an ACPM protocol driver that communicates with the firmware
> via mailbox channels. It's similar to arm,scmi if you want.

Rest of Rob's comment seems valid, so this also invalidates the DTS.


Best regards,
Krzysztof



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