diff --git a/qcom/sun.dtsi b/qcom/sun.dtsi
index 035b7837..9c90bc06 100644
--- a/qcom/sun.dtsi
+++ b/qcom/sun.dtsi
@@ -243,6 +243,107 @@
 		#mbox-cells = <1>;
 	};
 
+	qcom,smp2p-adsp {
+		compatible = "qcom,smp2p";
+		qcom,smem = <443>, <429>;
+		interrupt-parent = <&ipcc_mproc>;
+		interrupts = <IPCC_CLIENT_LPASS IPCC_MPROC_SIGNAL_SMP2P
+			      IRQ_TYPE_EDGE_RISING>;
+		mboxes = <&ipcc_mproc IPCC_CLIENT_LPASS
+			  IPCC_MPROC_SIGNAL_SMP2P>;
+		qcom,local-pid = <0>;
+		qcom,remote-pid = <2>;
+
+		adsp_smp2p_out: master-kernel {
+			qcom,entry-name = "master-kernel";
+			#qcom,smem-state-cells = <1>;
+		};
+
+		adsp_smp2p_in: slave-kernel {
+			qcom,entry-name = "slave-kernel";
+			interrupt-controller;
+			#interrupt-cells = <2>;
+		};
+
+		sleepstate_smp2p_out: sleepstate-out {
+			qcom,entry-name = "sleepstate";
+			#qcom,smem-state-cells = <1>;
+		};
+
+		sleepstate_smp2p_in: qcom,sleepstate-in {
+			qcom,entry-name = "sleepstate_see";
+			interrupt-controller;
+			#interrupt-cells = <2>;
+		};
+	};
+
+
+	qcom,smp2p-cdsp {
+		compatible = "qcom,smp2p";
+		qcom,smem = <94>, <432>;
+		interrupt-parent = <&ipcc_mproc>;
+		interrupts = <IPCC_CLIENT_CDSP IPCC_MPROC_SIGNAL_SMP2P
+			      IRQ_TYPE_EDGE_RISING>;
+		mboxes = <&ipcc_mproc IPCC_CLIENT_CDSP IPCC_MPROC_SIGNAL_SMP2P>;
+		qcom,local-pid = <0>;
+		qcom,remote-pid = <5>;
+
+		cdsp_smp2p_out: master-kernel {
+			qcom,entry-name = "master-kernel";
+			#qcom,smem-state-cells = <1>;
+		};
+
+		cdsp_smp2p_in: slave-kernel {
+			qcom,entry-name = "slave-kernel";
+			interrupt-controller;
+			#interrupt-cells = <2>;
+		};
+	};
+
+	qcom,smp2p-modem {
+		compatible = "qcom,smp2p";
+		qcom,smem = <435>, <428>;
+		interrupt-parent = <&ipcc_mproc>;
+		interrupts = <IPCC_CLIENT_MPSS IPCC_MPROC_SIGNAL_SMP2P
+			      IRQ_TYPE_EDGE_RISING>;
+		mboxes = <&ipcc_mproc IPCC_CLIENT_MPSS IPCC_MPROC_SIGNAL_SMP2P>;
+		qcom,local-pid = <0>;
+		qcom,remote-pid = <1>;
+
+		modem_smp2p_out: master-kernel {
+			qcom,entry-name = "master-kernel";
+			#qcom,smem-state-cells = <1>;
+		};
+
+		modem_smp2p_in: slave-kernel {
+			qcom,entry-name = "slave-kernel";
+			interrupt-controller;
+			#interrupt-cells = <2>;
+		};
+	};
+
+	qcom,smp2p-soccp {
+		compatible = "qcom,smp2p";
+		qcom,smem = <617>, <616>;
+		interrupt-parent = <&ipcc_mproc>;
+		interrupts = <IPCC_CLIENT_SOCCP IPCC_MPROC_SIGNAL_SMP2P
+			      IRQ_TYPE_EDGE_RISING>;
+		mboxes = <&ipcc_mproc IPCC_CLIENT_SOCCP IPCC_MPROC_SIGNAL_SMP2P>;
+		qcom,local-pid = <0>;
+		qcom,remote-pid = <19>;
+
+		soccp_smp2p_out: master-kernel {
+			qcom,entry-name = "master-kernel";
+			#qcom,smem-state-cells = <1>;
+		};
+
+		soccp_smp2p_in: slave-kernel {
+			qcom,entry-name = "slave-kernel";
+			interrupt-controller;
+			#interrupt-cells = <2>;
+		};
+	};
+
 	tlmm: pinctrl@f000000 {
 		compatible = "qcom,sun-tlmm";
 		reg = <0xf000000 0x1000000>;