From 1825ac5e2ad27ad72d1a550f6e19f8cc1ae90afe Mon Sep 17 00:00:00 2001
From: Pengyu Luo <mitltlatltl@gmail.com>
Date: Fri, 3 Apr 2026 20:07:52 +0800
Subject: [PATCH] arm64: dts: qcom: sc8280xp: Add ADSP FastRPC node

Add the FastRPC node to enable offloading compute tasks to the ADSP
via the FastRPC framework.

Signed-off-by: Pengyu Luo <mitltlatltl@gmail.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20260403120753.105869-1-mitltlatltl@gmail.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
---
 arch/arm64/boot/dts/qcom/sc8280xp.dtsi | 27 ++++++++++++++++++++++++++
 1 file changed, 27 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/sc8280xp.dtsi b/arch/arm64/boot/dts/qcom/sc8280xp.dtsi
index 761f229e8f47..ee02acd18856 100644
--- a/arch/arm64/boot/dts/qcom/sc8280xp.dtsi
+++ b/arch/arm64/boot/dts/qcom/sc8280xp.dtsi
@@ -2966,6 +2966,33 @@ IPCC_MPROC_SIGNAL_GLINK_QMP
 				label = "lpass";
 				qcom,remote-pid = <2>;
 
+				fastrpc {
+					compatible = "qcom,fastrpc";
+					qcom,glink-channels = "fastrpcglink-apps-dsp";
+					label = "adsp";
+					qcom,non-secure-domain;
+					#address-cells = <1>;
+					#size-cells = <0>;
+
+					compute-cb@3 {
+						compatible = "qcom,fastrpc-compute-cb";
+						reg = <3>;
+						iommus = <&apps_smmu 0x0c03 0x0>;
+					};
+
+					compute-cb@4 {
+						compatible = "qcom,fastrpc-compute-cb";
+						reg = <4>;
+						iommus = <&apps_smmu 0x0c04 0x0>;
+					};
+
+					compute-cb@5 {
+						compatible = "qcom,fastrpc-compute-cb";
+						reg = <5>;
+						iommus = <&apps_smmu 0x0c05 0x0>;
+					};
+				};
+
 				gpr {
 					compatible = "qcom,gpr";
 					qcom,glink-channels = "adsp_apps";