Re: [PATCH v11 5/6] arm64: dts: qcom: monaco: Add OPP-table for ICE UFS and ICE eMMC nodes

[Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>]

On 6/29/26 12:24 PM, Kuldeep Singh wrote:
>>>> Since 75 MHz and 201.6 Mhz require the same power level, is the former
>>>> OPP any useful?
>>>
>>> Yes, both use the same power requirements. However recommended by the ICE team,
>>> the DT should include all opp/freq supported by the hardware.
>>
>> Is there any reason at all where the OS would prefer the lower OPP?
>>
>> I think you at one point mentioned some dependency vs the storage
>> controller's clock frequency
> 
> I think Abhinaba captured all possible frequencies(even lowest ones) as
> what the hardware currently describes. It's upto storage controller
> running frequency and let it scale ice clocks to higher/lower to it's
> max capabilities.
> 
> Describing hardware based information also avoid revisiting DTs at later
> moment.

I agree conceptually and it would be easier to agree fully if you
gave me an answer like "this is useful when XYZ and ABC because DEF"
instead of deflecting the question to the obvious fact of the
hardware supporting that OPP

Konrad