[PATCH V1 2/4] dt-bindings: soc: qcom,mpm-sleep-counter: Add the dtschema
Krzysztof Kozlowski
krzysztof.kozlowski at linaro.org
Wed Mar 22 09:29:51 PDT 2023
On 22/03/2023 14:46, Souradeep Chowdhury wrote:
>>> + - const: qcom,mpm2-sleep-counter
>>
>> SoC specific compatible.
>>
>
> This is a generic Module Power Manager Sleep Counter which is present in
> all Qcom Socs, so SoC specific compatible is not given here.
Not really a good reason and it is actually very difficult to verify
this. If I understand correctly any moment FW can change and this will
stop being valid, so no.
>
>>> +
>>> + reg:
>>> + items:
>>> + - description: MPM Sleep Counter Base
>>
>> just maxItems: 1
>>
>
> Ack
>>> +
>>> + clock-frequency:
>>> + description: Frequency for the sleep counter
>>
>> Since this does not have clocks, what frequency you are setting here?
>
> Module Power Manager(MPM) Sleep Counter is a clock that starts ticking
> from Primary Boot Loader(PBL) Stage. This is usually a 32 Khz clock and
> the frequency for the same is stored here.
You just said all devices have the same MPM, so I would argue that all
devices have the same clock.
Anyway, this is a legacy property.
Best regards,
Krzysztof
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