Re: [PATCH 4/4] arm64: dts: qcom: rename AOSS QMP node to pmu

[Krzysztof Kozlowski]

On 12/12/2022 14:38, Konrad Dybcio wrote:
> 
> 
> On 12.12.2022 14:33, Krzysztof Kozlowski wrote:
>> The Always On Subsystem (AOSS) QMP is not a power domain controller
>> since commit 135780456218 ("arm64: dts: qcom: sc7180: Use QMP property
>> to control load state") and few others.  In fact, it was never a power
>> domain controller but rather control of power state of remote
>> processors.  This power state control is know handled differently, thus
>> the AOSS QMP nodes do not have power-domain-cells:
>>
>>   sc7280-idp.dtb: power-controller@c300000: '#power-domain-cells' is a required property
>>   From schema: Documentation/devicetree/bindings/power/power-domain.yaml
>>
>> AOSS QMP is an interface to the actuall AOSS subsystem responsible for
>> some of power management functions, thus let's call the nodes as "pmu" -
>> Power Management Unit.
> power-management@ is used on apple and rockchip and pmu is very
> ambiguous (power management or performance measurement unit).

Sure, can be power-management. Samsung uses also pmu, but indeed it is
easy to confuse with PMU counters.

Best regards,
Krzysztof