From b0b51a5f1911fd812004eb6b16d178468fece237 Mon Sep 17 00:00:00 2001
From: Ekansh Gupta <ekansh.gupta@oss.qualcomm.com>
Date: Mon, 29 Jun 2026 12:04:38 +0530
Subject: [PATCH] arm64: dts: qcom: talos: Add memory-region for audio PD

Reserve memory region for audio PD dynamic loading and remote heap
requirements. Add the required VMID list for memory ownership
transfers.

Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Signed-off-by: Ekansh Gupta <ekansh.gupta@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20260629-talos-remoteheap-v3-1-4e23366c9196@oss.qualcomm.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
---
 arch/arm64/boot/dts/qcom/talos.dtsi | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/talos.dtsi b/arch/arm64/boot/dts/qcom/talos.dtsi
index 6bd1118167e9..c8d877a6b472 100644
--- a/arch/arm64/boot/dts/qcom/talos.dtsi
+++ b/arch/arm64/boot/dts/qcom/talos.dtsi
@@ -11,6 +11,7 @@
 #include <dt-bindings/clock/qcom,qcs615-videocc.h>
 #include <dt-bindings/clock/qcom,rpmh.h>
 #include <dt-bindings/dma/qcom-gpi.h>
+#include <dt-bindings/firmware/qcom,scm.h>
 #include <dt-bindings/interconnect/qcom,icc.h>
 #include <dt-bindings/interconnect/qcom,osm-l3.h>
 #include <dt-bindings/interconnect/qcom,qcs615-rpmh.h>
@@ -677,6 +678,14 @@
 			reg = <0x0 0x97715000 0x0 0x2000>;
 			no-map;
 		};
+
+		adsp_rpc_remote_heap_mem: adsp-rpc-remote-heap {
+			compatible = "shared-dma-pool";
+			alloc-ranges = <0x0 0x80000000 0x0 0x80000000>;
+			reusable;
+			alignment = <0x0 0x400000>;
+			size = <0x0 0x800000>;
+		};
 	};
 
 	soc: soc@0 {
@@ -5254,6 +5263,9 @@
 					compatible = "qcom,fastrpc";
 					qcom,glink-channels = "fastrpcglink-apps-dsp";
 					label = "adsp";
+					memory-region = <&adsp_rpc_remote_heap_mem>;
+					qcom,vmids = <QCOM_SCM_VMID_LPASS
+						      QCOM_SCM_VMID_ADSP_HEAP>;
 					#address-cells = <1>;
 					#size-cells = <0>;