linux-kernel - Re: [PATCH v4 2/2] arm64: dts: qcom: qcs615: Add CPU scaling clock node

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Message-ID: <xkvn3r7yphlccurdqzncz5qegs7xc254xc2ou2dzuilatk5f5j@eq5ynce4aepg>
Date: Wed, 25 Jun 2025 14:36:54 +0300
From: Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>
To: Taniya Das <quic_tdas@...cinc.com>
Cc: Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konradybcio@...nel.org>, Rob Herring <robh@...nel.org>,
        Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Ajit Pandey <quic_ajipan@...cinc.com>,
        Imran Shaik <quic_imrashai@...cinc.com>,
        Jagadeesh Kona <quic_jkona@...cinc.com>, linux-arm-msm@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v4 2/2] arm64: dts: qcom: qcs615: Add CPU scaling clock
 node

On Wed, Jun 25, 2025 at 04:44:01PM +0530, Taniya Das wrote:
> Add cpufreq-hw node to support CPU frequency scaling.
> 
> Signed-off-by: Taniya Das <quic_tdas@...cinc.com>
> ---
>  arch/arm64/boot/dts/qcom/qcs615.dtsi | 29 +++++++++++++++++++++++++++++
>  1 file changed, 29 insertions(+)
> 
> @@ -3891,6 +3907,19 @@ glink_edge: glink-edge {
>  				qcom,remote-pid = <2>;
>  			};
>  		};
> +
> +		cpufreq_hw: cpufreq@...23000 {
> +			compatible = "qcom,sc7180-cpufreq-hw", "qcom,cpufreq-hw";

Why? Other platforms use a true SoC as the first entry.

> +			reg = <0 0x18323000 0 0x1400>, <0 0x18325800 0 0x1400>;
> +			reg-names = "freq-domain0", "freq-domain1";
> +
> +			clocks = <&rpmhcc RPMH_CXO_CLK>, <&gcc GPLL0>;
> +			clock-names = "xo", "alternate";
> +
> +			#freq-domain-cells = <1>;
> +			#clock-cells = <1>;
> +		};
> +
>  	};
>  
>  	arch_timer: timer {
> 
> -- 
> 2.34.1
> 

-- 
With best wishes
Dmitry