linux-kernel - Re: [PATCH v2 1/4] arm64: dts: qcom: ipq6018: add 1.2GHz CPU Frequency

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Message-Id: <20240307025016.91979-1-amadeus@jmu.edu.cn>
Date: Thu,  7 Mar 2024 10:50:16 +0800
From: Chukun Pan <amadeus@....edu.cn>
To: konrad.dybcio@...aro.org
Cc: amadeus@....edu.cn,
	andersson@...nel.org,
	conor+dt@...nel.org,
	devicetree@...r.kernel.org,
	krzysztof.kozlowski+dt@...aro.org,
	linux-arm-msm@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	robh@...nel.org
Subject: Re: [PATCH v2 1/4] arm64: dts: qcom: ipq6018: add 1.2GHz CPU Frequency

Hi, Konrad
>> Some IPQ6000 SoCs have CPU frequencies up to 1.2GHz,
> (which ones specifically?)

This depends on the efuse value read by the driver.
For the boards I have, there are two cases: fused 1.2GHz
without pmic, fused 1.2GHz and fused 1.5GHz with pmic.

> Looks like said SoC can *only* run the CPUs at 1.2 GHz?

Yes, if the SoC is fused to 1.2GHz.

Thanks,
Chukun

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