Re: [PATCH v11 5/6] arm64: dts: qcom: monaco: Add OPP-table for ICE UFS and ICE eMMC nodes
Kuldeep Singh <[email protected]>
| Newsgroups | org.kernel.vger.linux-mmc,org.kernel.vger.linux-arm-msm,org.kernel.vger.linux-devicetree,org.kernel.vger.linux-kernel,org.kernel.vger.linux-scsi |
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| Message-ID | <[email protected]> |
>>> 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. -- Regards Kuldeep