linux-kernel - Re: [PATCH 2/2] arm64: dts: qcom: sdm630: Add FastRPC nodes to ADSP

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Message-ID: <9e4afde2-1171-4cdb-adac-3a496b8c53c3@oss.qualcomm.com>
Date: Mon, 20 Oct 2025 14:29:25 +0200
From: Konrad Dybcio <konrad.dybcio@....qualcomm.com>
To: Nickolay Goppen <setotau@...nlining.org>,
        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>,
        Srinivas Kandagatla <srinivas.kandagatla@....qualcomm.com>
Cc: linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, ~postmarketos/upstreaming@...ts.sr.ht,
        linux@...nlining.org
Subject: Re: [PATCH 2/2] arm64: dts: qcom: sdm630: Add FastRPC nodes to ADSP

On 10/19/25 6:27 PM, Nickolay Goppen wrote:
> This includes:
>  * Add missing vote clock and GDSC to lpass_smmu

This is a separate fix
>  * Add FastRPC subnode with compute-cb subnodes to ADSP node

And this is a feature addon

please separate this into two commits

> 
> Signed-off-by: Nickolay Goppen <setotau@...nlining.org>
> ---
>  arch/arm64/boot/dts/qcom/sdm630.dtsi | 38 ++++++++++++++++++++++++++++++++++++
>  1 file changed, 38 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/qcom/sdm630.dtsi b/arch/arm64/boot/dts/qcom/sdm630.dtsi
> index a6a1933229b9..2764666714e6 100644
> --- a/arch/arm64/boot/dts/qcom/sdm630.dtsi
> +++ b/arch/arm64/boot/dts/qcom/sdm630.dtsi
> @@ -1217,6 +1217,11 @@ lpass_smmu: iommu@...0000 {
>  			reg = <0x05100000 0x40000>;
>  			#iommu-cells = <1>;
>  
> +			clocks = <&gcc GCC_HLOS1_VOTE_LPASS_ADSP_SMMU_CLK>;
> +			clock-names = "bus";
> +
> +			power-domains = <&gcc HLOS1_VOTE_LPASS_ADSP_GDSC>;
> +
>  			#global-interrupts = <2>;
>  			interrupts =
>  				<GIC_SPI 229 IRQ_TYPE_LEVEL_HIGH>,
> @@ -2337,6 +2342,39 @@ q6routing: routing {
>  						};
>  					};
>  				};
> +
> +				fastrpc {
> +					compatible = "qcom,fastrpc";
> +					qcom,glink-channels = "fastrpcglink-apps-dsp";
> +					label = "adsp";
> +					qcom,non-secure-domain;

I don't think this is valid for ADSP, +Srini please confirm

Konrad