linux-kernel - Re: [PATCH] arm64: dts: qcom: x1e80100: Add '#cooling-cells' for CPU nodes

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Message-ID: <itksdoavfha6xnozfrh5jcc4g75gcfyxp7ns75yz7xfb6wruy3@qwkcavvxrljp>
Date: Sun, 19 Oct 2025 19:01:30 +0300
From: Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>
To: Manivannan Sadhasivam <mani@...nel.org>
Cc: andersson@...nel.org, konradybcio@...nel.org, robh@...nel.org,
        krzk+dt@...nel.org, conor+dt@...nel.org, linux-arm-msm@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        Manivannan Sadhasivam <manivannan.sadhasivam@....qualcomm.com>
Subject: Re: [PATCH] arm64: dts: qcom: x1e80100: Add '#cooling-cells' for CPU
 nodes

On Wed, Oct 15, 2025 at 12:27:03PM +0530, Manivannan Sadhasivam wrote:
> From: Manivannan Sadhasivam <manivannan.sadhasivam@....qualcomm.com>
> 
> Enable passive cooling for CPUs in the X1E80100 SoC by adding the
> '#cooling-cells' property. This will allow the OS to mitigate the CPU
> power dissipation with the help of SCMI DVFS.

#cooling-cells isn't enough, the devices need to be listed in the
thermal maps.

> 
> Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@....qualcomm.com>
> Signed-off-by: Manivannan Sadhasivam <mani@...nel.org>
> ---
>  arch/arm64/boot/dts/qcom/x1e80100.dtsi | 12 ++++++++++++
>  1 file changed, 12 insertions(+)
> 

-- 
With best wishes
Dmitry