linux-kernel - Re: [PATCH] arm64: dts: qcom: hamoa: fastrpc: set ADSP on secure domain

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Message-ID: <dg6xdvvdlp4dhlhsdykus4a3cwc4g6pkhy4gijiepb66g5s3fk@2l25tq7ihxth>
Date: Wed, 24 Dec 2025 11:34:24 +0200
From: Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>
To: Jianping Li <jianping.li@....qualcomm.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>, linux-arm-msm@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        ekansh.gupta@....qualcomm.com, quic_chennak@...cinc.com
Subject: Re: [PATCH] arm64: dts: qcom: hamoa: fastrpc: set ADSP on secure
 domain

On Wed, Dec 24, 2025 at 04:57:09PM +0800, Jianping Li wrote:
> On Hamoa platforms, ADSP FastRPC should be instantiated as a secure
> domain. The presence of `qcom,non-secure-domain` under the ADSP fastrpc
> node causes the kernel to expose a non-secure device node, which is not
> desired for Hamoa.

Why? You made some claims, but provided no explanation for them.

> 
> Signed-off-by: Jianping Li <jianping.li@....qualcomm.com>
> ---
>  arch/arm64/boot/dts/qcom/hamoa.dtsi | 1 -
>  1 file changed, 1 deletion(-)
> 
> diff --git a/arch/arm64/boot/dts/qcom/hamoa.dtsi b/arch/arm64/boot/dts/qcom/hamoa.dtsi
> index a17900eacb20..da62c5741350 100644
> --- a/arch/arm64/boot/dts/qcom/hamoa.dtsi
> +++ b/arch/arm64/boot/dts/qcom/hamoa.dtsi
> @@ -4193,7 +4193,6 @@ fastrpc {
>  					compatible = "qcom,fastrpc";
>  					qcom,glink-channels = "fastrpcglink-apps-dsp";
>  					label = "adsp";
> -					qcom,non-secure-domain;
>  					#address-cells = <1>;
>  					#size-cells = <0>;
>  
> -- 
> 2.43.0
> 

-- 
With best wishes
Dmitry