diff --git a/qcom/tuna.dtsi b/qcom/tuna.dtsi
index 04a31470..d97094d5 100644
--- a/qcom/tuna.dtsi
+++ b/qcom/tuna.dtsi
@@ -18,6 +18,7 @@
 #include <dt-bindings/soc/qcom,ipcc.h>
 #include <dt-bindings/soc/qcom,rpmh-rsc.h>
 #include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/spmi/spmi.h>
 
 / {
 	model = "Qualcomm Technologies, Inc. Tuna";
@@ -1099,6 +1100,135 @@
 
 		status = "disabled";
 	};
+
+	spmi_bus: spmi0_bus: qcom,spmi@c42d000 {
+		compatible = "qcom,spmi-pmic-arb";
+			reg = <0xc42d000 0x4000>,
+			<0xc400000 0x3000>,
+			<0xc500000 0x400000>,
+			<0xc440000 0x80000>,
+			<0xc4c0000 0x10000>;
+		reg-names = "cnfg", "core", "chnls", "obsrvr", "intr";
+		interrupts-extended = <&pdc 1 IRQ_TYPE_LEVEL_HIGH>;
+		interrupt-names = "periph_irq";
+		interrupt-controller;
+		#interrupt-cells = <4>;
+		#address-cells = <2>;
+		#size-cells = <0>;
+		cell-index = <0>;
+		qcom,channel = <0>;
+		qcom,ee = <0>;
+		qcom,bus-id = <0>;
+	};
+
+	spmi1_bus: qcom,spmi@c432000 {
+		compatible = "qcom,spmi-pmic-arb";
+		reg = <0xc432000 0x4000>,
+			<0xc400000 0x3000>,
+			<0xc500000 0x400000>,
+			<0xc440000 0x80000>,
+			<0xc4d0000 0x10000>;
+		reg-names = "cnfg", "core", "chnls", "obsrvr", "intr";
+		interrupts-extended = <&pdc 3 IRQ_TYPE_LEVEL_HIGH>;
+		interrupt-names = "periph_irq";
+		interrupt-controller;
+		#interrupt-cells = <4>;
+		#address-cells = <2>;
+		#size-cells = <0>;
+		cell-index = <0>;
+		qcom,channel = <0>;
+		qcom,ee = <0>;
+		qcom,bus-id = <1>;
+		depends-on-supply = <&spmi0_bus>;
+		status = "disabled";
+	};
+
+	spmi0_debug_bus: qcom,spmi-debug@10b14000 {
+		compatible = "qcom,spmi-pmic-arb-debug";
+		reg = <0x10b14000 0x60>, <0x221c8784 0x4>;
+		reg-names = "core", "fuse";
+		clocks = <&aoss_qmp>;
+		clock-names = "core_clk";
+		qcom,fuse-enable-bit = <18>;
+		#address-cells = <2>;
+		#size-cells = <0>;
+		depends-on-supply = <&spmi_bus>;
+
+		pmk8550@0 {
+			compatible = "qcom,spmi-pmic";
+			reg = <0 SPMI_USID>;
+			#address-cells = <2>;
+			#size-cells = <0>;
+			qcom,can-sleep;
+		};
+
+		pmxr2230@1 {
+			compatible = "qcom,spmi-pmic";
+			reg = <1 SPMI_USID>;
+			#address-cells = <2>;
+			#size-cells = <0>;
+			qcom,can-sleep;
+		};
+
+		pm8550vs@3 {
+			compatible = "qcom,spmi-pmic";
+			reg = <3 SPMI_USID>;
+			#address-cells = <2>;
+			#size-cells = <0>;
+			qcom,can-sleep;
+		};
+
+		pmd802x@4 {
+			compatible = "qcom,spmi-pmic";
+			reg = <4 SPMI_USID>;
+			#address-cells = <2>;
+			#size-cells = <0>;
+			qcom,can-sleep;
+		};
+
+		pm8550ve@5 {
+			compatible = "qcom,spmi-pmic";
+			reg = <5 SPMI_USID>;
+			#address-cells = <2>;
+			#size-cells = <0>;
+			qcom,can-sleep;
+		};
+
+		pm8550vs@6 {
+			compatible = "qcom,spmi-pmic";
+			reg = <6 SPMI_USID>;
+			#address-cells = <2>;
+			#size-cells = <0>;
+			qcom,can-sleep;
+		};
+
+		pmg1110@8 {
+			compatible = "qcom,spmi-pmic";
+			reg = <8 SPMI_USID>;
+			#address-cells = <2>;
+			#size-cells = <0>;
+			qcom,can-sleep;
+		};
+
+		pmg1110@9 {
+			compatible = "qcom,spmi-pmic";
+			reg = <9 SPMI_USID>;
+			#address-cells = <2>;
+			#size-cells = <0>;
+			qcom,can-sleep;
+		};
+
+		pmr735d@a {
+			compatible = "qcom,spmi-pmic";
+			reg = <10 SPMI_USID>;
+			#address-cells = <2>;
+			#size-cells = <0>;
+			qcom,can-sleep;
+		};
+	};
+
+	thermal_zones: thermal-zones {
+	};
 };
 
 #include "tuna-gdsc.dtsi"