From: Kuldeep Singh <kuldeep.singh@oss.qualcomm.com>
To: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>,
Abhinaba Rakshit <abhinaba.rakshit@oss.qualcomm.com>
Cc: Bjorn Andersson <andersson@kernel.org>,
Konrad Dybcio <konradybcio@kernel.org>,
Manivannan Sadhasivam <mani@kernel.org>,
"James E.J. Bottomley" <James.Bottomley@hansenpartnership.com>,
"Martin K. Petersen" <martin.petersen@oracle.com>,
Adrian Hunter <adrian.hunter@intel.com>,
Ulf Hansson <ulfh@kernel.org>, Rob Herring <robh@kernel.org>,
Krzysztof Kozlowski <krzk+dt@kernel.org>,
Conor Dooley <conor+dt@kernel.org>,
Neeraj Soni <neeraj.soni@oss.qualcomm.com>,
Harshal Dev <harshal.dev@oss.qualcomm.com>,
linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-scsi@vger.kernel.org, linux-mmc@vger.kernel.org,
devicetree@vger.kernel.org
Subject: Re: [PATCH v11 5/6] arm64: dts: qcom: monaco: Add OPP-table for ICE UFS and ICE eMMC nodes
Date: Mon, 29 Jun 2026 15:54:44 +0530 [thread overview]
Message-ID: <86321e30-2bee-41bb-9d63-d0e6ab4154db@oss.qualcomm.com> (raw)
In-Reply-To: <dcd6f0e3-46a6-4f57-b4a6-0b9362b1a8c4@oss.qualcomm.com>
>>> 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
next prev parent reply other threads:[~2026-06-29 10:24 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-06-08 21:47 [PATCH v11 0/6] Enable ICE clock scaling Abhinaba Rakshit
2026-06-08 21:47 ` [PATCH v11 1/6] soc: qcom: ice: Add OPP-based clock scaling support for ICE Abhinaba Rakshit
2026-06-10 10:40 ` Manivannan Sadhasivam
2026-06-11 10:13 ` Abhinaba Rakshit
2026-06-18 13:01 ` Konrad Dybcio
2026-06-22 7:34 ` Abhinaba Rakshit
2026-06-29 11:08 ` Konrad Dybcio
2026-08-21 10:47 ` Abhinaba Rakshit
2026-06-08 21:47 ` [PATCH v11 2/6] ufs: host: Add ICE clock scaling during UFS clock changes Abhinaba Rakshit
2026-06-08 21:57 ` Martin K. Petersen
2026-06-08 21:47 ` [PATCH v11 3/6] mmc: sdhci-msm: Set ICE clk to TURBO at sdhci ICE init Abhinaba Rakshit
2026-06-18 12:59 ` Konrad Dybcio
2026-06-22 7:54 ` Abhinaba Rakshit
2026-06-08 21:47 ` [PATCH v11 4/6] arm64: dts: qcom: kodiak: Add OPP-table for ICE UFS and ICE eMMC nodes Abhinaba Rakshit
2026-06-11 12:12 ` Kuldeep Singh
2026-06-15 8:03 ` Abhinaba Rakshit
2026-06-15 10:42 ` Kuldeep Singh
2026-06-18 13:03 ` Konrad Dybcio
2026-06-08 21:47 ` [PATCH v11 5/6] arm64: dts: qcom: monaco: " Abhinaba Rakshit
2026-06-11 12:20 ` Kuldeep Singh
2026-06-18 13:04 ` Konrad Dybcio
2026-06-22 7:38 ` Abhinaba Rakshit
2026-06-26 14:28 ` Konrad Dybcio
2026-06-29 10:24 ` Kuldeep Singh [this message]
2026-06-29 11:51 ` Konrad Dybcio
2026-08-21 10:36 ` Abhinaba Rakshit
2026-06-08 21:47 ` [PATCH v11 6/6] arm64: dts: qcom: lemans: Add OPP-table for ICE UFS device node Abhinaba Rakshit
2026-06-11 12:23 ` Kuldeep Singh
2026-06-18 13:05 ` Konrad Dybcio
2026-08-21 10:46 ` Abhinaba Rakshit
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