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

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Message-Id: <20251019-qcom-sdm660-cdsp-adsp-dts-v1-2-9ab5f2865a6e@mainlining.org>
Date: Sun, 19 Oct 2025 19:27:07 +0300
From: Nickolay Goppen <setotau@...nlining.org>
To: 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>
Cc: linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org, 
 linux-kernel@...r.kernel.org, ~postmarketos/upstreaming@...ts.sr.ht, 
 linux@...nlining.org, Nickolay Goppen <setotau@...nlining.org>
Subject: [PATCH 2/2] arm64: dts: qcom: sdm630: Add FastRPC nodes to ADSP

This includes:
 * Add missing vote clock and GDSC to lpass_smmu
 * Add FastRPC subnode with compute-cb subnodes to ADSP node

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;
+					#address-cells = <1>;
+					#size-cells = <0>;
+
+					compute-cb@1 {
+						compatible = "qcom,fastrpc-compute-cb";
+						reg = <1>;
+						iommus = <&lpass_smmu 3>;
+					};
+
+					compute-cb@2 {
+						compatible = "qcom,fastrpc-compute-cb";
+						reg = <2>;
+						iommus = <&lpass_smmu 7>;
+					};
+
+					compute-cb@3 {
+						compatible = "qcom,fastrpc-compute-cb";
+						reg = <3>;
+						iommus = <&lpass_smmu 8>;
+					};
+
+					compute-cb@4 {
+						compatible = "qcom,fastrpc-compute-cb";
+						reg = <4>;
+						iommus = <&lpass_smmu 9>;
+					};
+				};
 			};
 		};
 

-- 
2.51.1