From 531ce288b6dd43c1ce90e0b501c209783f0e0ab2 Mon Sep 17 00:00:00 2001
From: Vinayak Katoch <vinayak.katoch@oss.qualcomm.com>
Date: Fri, 19 Jun 2026 15:20:08 +0530
Subject: [PATCH] arm64: dts: qcom: sm8250: 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.

Signed-off-by: Vinayak Katoch <vinayak.katoch@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20260619-sm8250-audio-v1-1-8a76e033e209@oss.qualcomm.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
---
 arch/arm64/boot/dts/qcom/sm8250.dtsi | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/sm8250.dtsi b/arch/arm64/boot/dts/qcom/sm8250.dtsi
index 271778f16895..afdd3378f0ab 100644
--- a/arch/arm64/boot/dts/qcom/sm8250.dtsi
+++ b/arch/arm64/boot/dts/qcom/sm8250.dtsi
@@ -10,6 +10,7 @@
 #include <dt-bindings/clock/qcom,gpucc-sm8250.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/gpio/gpio.h>
 #include <dt-bindings/interconnect/qcom,osm-l3.h>
 #include <dt-bindings/interconnect/qcom,sm8250.h>
@@ -863,6 +864,14 @@ cdsp_secure_heap: memory@8bf00000 {
 			reg = <0x0 0x8bf00000 0x0 0x4600000>;
 			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>;
+		};
 	};
 
 	smem {
@@ -6084,6 +6093,9 @@ fastrpc {
 					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>;
 					qcom,non-secure-domain;
 					#address-cells = <1>;
 					#size-cells = <0>;