[PATCH v2] arm64: dts: qcom: kaanapali: Add memory-region for audio PD

[PATCH v2] arm64: dts: qcom: kaanapali: Add memory-region for audio PD

[Ekansh Gupta]

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

Reviewed-by: Abel Vesa <abel.vesa@oss.qualcomm.com>
Signed-off-by: Ekansh Gupta <ekansh.gupta@oss.qualcomm.com>
---
Changes in v2:
- Make the audio PD remote heap no-map.
- Link to v1: https://lore.kernel.org/r/20260922-knp-rh-v1-1-35e29b104809@oss.qualcomm.com
---
 arch/arm64/boot/dts/qcom/kaanapali.dtsi | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/kaanapali.dtsi b/arch/arm64/boot/dts/qcom/kaanapali.dtsi
index 131fd2a16c54..8a1b53e9f73b 100644
--- a/arch/arm64/boot/dts/qcom/kaanapali.dtsi
+++ b/arch/arm64/boot/dts/qcom/kaanapali.dtsi
@@ -451,6 +451,14 @@ rmtfs_mem: rmtfs@d7c00000 {
 			qcom,client-id = <1>;
 			qcom,vmid = <QCOM_SCM_VMID_MSS_MSA>;
 		};
+
+		adsp_rpc_remote_heap_mem: adsp-rpc-remote-heap {
+			compatible = "shared-dma-pool";
+			alloc-ranges = <0x0 0x0 0x1 0x0>;
+			no-map;
+			alignment = <0x0 0x400000>;
+			size = <0x0 0x800000>;
+		};
 	};
 
 	smp2p-adsp {
@@ -2755,6 +2763,9 @@ fastrpc {
 					compatible = "qcom,kaanapali-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>;
 

---
base-commit: 5c4d4169604b335c38bbc79bc1fc03042981fc6f
change-id: 20260922-knp-rh-b090f9ec1572

Best regards,
-- 
Ekansh Gupta <ekansh.gupta@oss.qualcomm.com>