diff --git a/arch/arm64/boot/dts/mediatek/mt8186.dtsi b/arch/arm64/boot/dts/mediatek/mt8186.dtsi
index 64693c17af9e..833e7037fe22 100644
--- a/arch/arm64/boot/dts/mediatek/mt8186.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt8186.dtsi
@@ -329,6 +329,194 @@
 			#interrupt-cells = <2>;
 		};
 
+		scpsys: syscon@10006000 {
+			compatible = "mediatek,mt8186-scpsys", "syscon", "simple-mfd";
+			reg = <0 0x10006000 0 0x1000>;
+
+			/* System Power Manager */
+			spm: power-controller {
+				compatible = "mediatek,mt8186-power-controller";
+				#address-cells = <1>;
+				#size-cells = <0>;
+				#power-domain-cells = <1>;
+
+				/* power domain of the SoC */
+				mfg0: power-domain@MT8186_POWER_DOMAIN_MFG0 {
+					reg = <MT8186_POWER_DOMAIN_MFG0>;
+					clocks = <&topckgen CLK_TOP_MFG>;
+					clock-names = "mfg00";
+					#address-cells = <1>;
+					#size-cells = <0>;
+					#power-domain-cells = <1>;
+
+					power-domain@MT8186_POWER_DOMAIN_MFG1 {
+						reg = <MT8186_POWER_DOMAIN_MFG1>;
+						mediatek,infracfg = <&infracfg_ao>;
+						#address-cells = <1>;
+						#size-cells = <0>;
+						#power-domain-cells = <1>;
+
+						power-domain@MT8186_POWER_DOMAIN_MFG2 {
+							reg = <MT8186_POWER_DOMAIN_MFG2>;
+							#power-domain-cells = <0>;
+						};
+
+						power-domain@MT8186_POWER_DOMAIN_MFG3 {
+							reg = <MT8186_POWER_DOMAIN_MFG3>;
+							#power-domain-cells = <0>;
+						};
+					};
+				};
+
+				power-domain@MT8186_POWER_DOMAIN_CSIRX_TOP {
+					reg = <MT8186_POWER_DOMAIN_CSIRX_TOP>;
+					clocks = <&topckgen CLK_TOP_SENINF>,
+						 <&topckgen CLK_TOP_SENINF1>;
+					clock-names = "csirx_top0", "csirx_top1";
+					#power-domain-cells = <0>;
+				};
+
+				power-domain@MT8186_POWER_DOMAIN_SSUSB {
+					reg = <MT8186_POWER_DOMAIN_SSUSB>;
+					#power-domain-cells = <0>;
+				};
+
+				power-domain@MT8186_POWER_DOMAIN_SSUSB_P1 {
+					reg = <MT8186_POWER_DOMAIN_SSUSB_P1>;
+					#power-domain-cells = <0>;
+				};
+
+				power-domain@MT8186_POWER_DOMAIN_ADSP_AO {
+					reg = <MT8186_POWER_DOMAIN_ADSP_AO>;
+					clocks = <&topckgen CLK_TOP_AUDIODSP>,
+						 <&topckgen CLK_TOP_ADSP_BUS>;
+					clock-names = "adsp_ao0", "adsp_ao1";
+					#address-cells = <1>;
+					#size-cells = <0>;
+					#power-domain-cells = <1>;
+
+					power-domain@MT8186_POWER_DOMAIN_ADSP_INFRA {
+						reg = <MT8186_POWER_DOMAIN_ADSP_INFRA>;
+						#address-cells = <1>;
+						#size-cells = <0>;
+						#power-domain-cells = <1>;
+
+						power-domain@MT8186_POWER_DOMAIN_ADSP_TOP {
+							reg = <MT8186_POWER_DOMAIN_ADSP_TOP>;
+							mediatek,infracfg = <&infracfg_ao>;
+							#power-domain-cells = <0>;
+						};
+					};
+				};
+
+				power-domain@MT8186_POWER_DOMAIN_CONN_ON {
+					reg = <MT8186_POWER_DOMAIN_CONN_ON>;
+					mediatek,infracfg = <&infracfg_ao>;
+					#power-domain-cells = <0>;
+				};
+
+				power-domain@MT8186_POWER_DOMAIN_DIS {
+					reg = <MT8186_POWER_DOMAIN_DIS>;
+					clocks = <&topckgen CLK_TOP_DISP>,
+						 <&topckgen CLK_TOP_MDP>,
+						 <&mmsys CLK_MM_SMI_INFRA>,
+						 <&mmsys CLK_MM_SMI_COMMON>,
+						 <&mmsys CLK_MM_SMI_GALS>,
+						 <&mmsys CLK_MM_SMI_IOMMU>;
+					clock-names = "dis0", "dis1", "dis-0", "dis-1",
+						     "dis-2", "dis-3";
+					mediatek,infracfg = <&infracfg_ao>;
+					#address-cells = <1>;
+					#size-cells = <0>;
+					#power-domain-cells = <1>;
+
+					power-domain@MT8186_POWER_DOMAIN_VDEC {
+						reg = <MT8186_POWER_DOMAIN_VDEC>;
+						clocks = <&topckgen CLK_TOP_VDEC>,
+							 <&vdecsys CLK_VDEC_LARB1_CKEN>;
+						clock-names = "vdec0", "vdec-0";
+						mediatek,infracfg = <&infracfg_ao>;
+						#power-domain-cells = <0>;
+					};
+
+					power-domain@MT8186_POWER_DOMAIN_CAM {
+						reg = <MT8186_POWER_DOMAIN_CAM>;
+						clocks = <&topckgen CLK_TOP_CAM>,
+							 <&topckgen CLK_TOP_SENINF>,
+							 <&topckgen CLK_TOP_SENINF1>,
+							 <&topckgen CLK_TOP_SENINF2>,
+							 <&topckgen CLK_TOP_SENINF3>,
+							 <&topckgen CLK_TOP_CAMTM>,
+							 <&camsys CLK_CAM2MM_GALS>;
+						clock-names = "cam0", "cam1", "cam2", "cam3",
+							     "cam4", "cam5", "cam-0";
+						mediatek,infracfg = <&infracfg_ao>;
+						#address-cells = <1>;
+						#size-cells = <0>;
+						#power-domain-cells = <1>;
+
+						power-domain@MT8186_POWER_DOMAIN_CAM_RAWB {
+							reg = <MT8186_POWER_DOMAIN_CAM_RAWB>;
+							#power-domain-cells = <0>;
+						};
+
+						power-domain@MT8186_POWER_DOMAIN_CAM_RAWA {
+							reg = <MT8186_POWER_DOMAIN_CAM_RAWA>;
+							#power-domain-cells = <0>;
+						};
+					};
+
+					power-domain@MT8186_POWER_DOMAIN_IMG {
+						reg = <MT8186_POWER_DOMAIN_IMG>;
+						clocks = <&topckgen CLK_TOP_IMG1>,
+							 <&imgsys1 CLK_IMG1_GALS_IMG1>;
+						clock-names = "img0", "img-0";
+						mediatek,infracfg = <&infracfg_ao>;
+						#address-cells = <1>;
+						#size-cells = <0>;
+						#power-domain-cells = <1>;
+
+						power-domain@MT8186_POWER_DOMAIN_IMG2 {
+							reg = <MT8186_POWER_DOMAIN_IMG2>;
+							#power-domain-cells = <0>;
+						};
+					};
+
+					power-domain@MT8186_POWER_DOMAIN_IPE {
+						reg = <MT8186_POWER_DOMAIN_IPE>;
+						clocks = <&topckgen CLK_TOP_IPE>,
+							 <&ipesys CLK_IPE_LARB19>,
+							 <&ipesys CLK_IPE_LARB20>,
+							 <&ipesys CLK_IPE_SMI_SUBCOM>,
+							 <&ipesys CLK_IPE_GALS_IPE>;
+						clock-names = "ipe0", "ipe-0", "ipe-1", "ipe-2",
+							     "ipe-3";
+						mediatek,infracfg = <&infracfg_ao>;
+						#power-domain-cells = <0>;
+					};
+
+					power-domain@MT8186_POWER_DOMAIN_VENC {
+						reg = <MT8186_POWER_DOMAIN_VENC>;
+						clocks = <&topckgen CLK_TOP_VENC>,
+							 <&vencsys CLK_VENC_CKE1_VENC>;
+						clock-names = "venc0", "venc-0";
+						mediatek,infracfg = <&infracfg_ao>;
+						#power-domain-cells = <0>;
+					};
+
+					power-domain@MT8186_POWER_DOMAIN_WPE {
+						reg = <MT8186_POWER_DOMAIN_WPE>;
+						clocks = <&topckgen CLK_TOP_WPE>,
+							 <&wpesys CLK_WPE_SMI_LARB8_CK_EN>,
+							 <&wpesys CLK_WPE_SMI_LARB8_PCLK_EN>;
+						clock-names = "wpe0", "wpe-0", "wpe-1";
+						mediatek,infracfg = <&infracfg_ao>;
+						#power-domain-cells = <0>;
+					};
+				};
+			};
+		};
+
 		watchdog: watchdog@10007000 {
 			compatible = "mediatek,mt8186-wdt",
 				     "mediatek,mt6589-wdt";
