diff --git a/arch/arm64/boot/dts/mediatek/mt8390-genio-700-evk.dts b/arch/arm64/boot/dts/mediatek/mt8390-genio-700-evk.dts
index 6bb1d5d112ef..9b7ad046f193 100644
--- a/arch/arm64/boot/dts/mediatek/mt8390-genio-700-evk.dts
+++ b/arch/arm64/boot/dts/mediatek/mt8390-genio-700-evk.dts
@@ -87,103 +87,113 @@
 
 	common_fixed_5v: regulator-0 {
 		compatible = "regulator-fixed";
-		regulator-name = "5v_en";
+		regulator-name = "vdd_5v";
 		regulator-min-microvolt = <5000000>;
 		regulator-max-microvolt = <5000000>;
 		gpio = <&pio 10 GPIO_ACTIVE_HIGH>;
 		enable-active-high;
 		regulator-always-on;
+		vin-supply = <&reg_vsys>;
 	};
 
 	edp_panel_fixed_3v3: regulator-1 {
 		compatible = "regulator-fixed";
-		regulator-name = "edp_panel_3v3";
+		regulator-name = "vedp_3v3";
 		regulator-min-microvolt = <3300000>;
 		regulator-max-microvolt = <3300000>;
 		enable-active-high;
 		gpio = <&pio 15 GPIO_ACTIVE_HIGH>;
 		pinctrl-names = "default";
 		pinctrl-0 = <&edp_panel_3v3_en_pins>;
+		vin-supply = <&reg_vsys>;
 	};
 
 	gpio_fixed_3v3: regulator-2 {
 		compatible = "regulator-fixed";
-		regulator-name = "gpio_3v3_en";
+		regulator-name = "ext_3v3";
 		regulator-min-microvolt = <3300000>;
 		regulator-max-microvolt = <3300000>;
 		gpio = <&pio 9 GPIO_ACTIVE_HIGH>;
 		enable-active-high;
 		regulator-always-on;
+		vin-supply = <&reg_vsys>;
 	};
 
+	/* system wide 4.2V power rail from charger */
+	reg_vsys: regulator-vsys {
+		compatible = "regulator-fixed";
+		regulator-name = "vsys";
+		regulator-always-on;
+		regulator-boot-on;
+	};
+
+	/* used by mmc2 */
 	sdio_fixed_1v8: regulator-3 {
 		compatible = "regulator-fixed";
-		regulator-name = "sdio_io";
+		regulator-name = "vio18_conn";
 		regulator-min-microvolt = <1800000>;
 		regulator-max-microvolt = <1800000>;
 		enable-active-high;
 		regulator-always-on;
 	};
 
+	/* used by mmc2 */
 	sdio_fixed_3v3: regulator-4 {
 		compatible = "regulator-fixed";
-		regulator-name = "sdio_card";
+		regulator-name = "wifi_3v3";
 		regulator-min-microvolt = <3300000>;
 		regulator-max-microvolt = <3300000>;
 		gpio = <&pio 74 GPIO_ACTIVE_HIGH>;
 		enable-active-high;
 		regulator-always-on;
+		vin-supply = <&reg_vsys>;
 	};
 
 	touch0_fixed_3v3: regulator-5 {
 		compatible = "regulator-fixed";
-		regulator-name = "touch_3v3";
+		regulator-name = "vio33_tp1";
 		regulator-min-microvolt = <3300000>;
 		regulator-max-microvolt = <3300000>;
 		gpio = <&pio 119 GPIO_ACTIVE_HIGH>;
 		enable-active-high;
+		vin-supply = <&reg_vsys>;
 	};
 
 	usb_hub_fixed_3v3: regulator-6 {
 		compatible = "regulator-fixed";
-		regulator-name = "usb_hub_3v3";
+		regulator-name = "vhub_3v3";
 		regulator-min-microvolt = <3300000>;
 		regulator-max-microvolt = <3300000>;
 		gpio = <&pio 112 GPIO_ACTIVE_HIGH>; /* HUB_3V3_EN */
 		startup-delay-us = <10000>;
 		enable-active-high;
+		vin-supply = <&reg_vsys>;
 	};
 
-	usb_hub_reset_1v8: regulator-7 {
-		compatible = "regulator-fixed";
-		regulator-name = "usb_hub_reset";
-		regulator-min-microvolt = <1800000>;
-		regulator-max-microvolt = <1800000>;
-		gpio = <&pio 7 GPIO_ACTIVE_HIGH>; /* HUB_RESET */
-		vin-supply = <&usb_hub_fixed_3v3>;
-	};
-
-	usb_p0_vbus: regulator-8 {
+	usb_p0_vbus: regulator-7 {
 		compatible = "regulator-fixed";
-		regulator-name = "usb_p0_vbus";
+		regulator-name = "vbus_p0";
 		regulator-min-microvolt = <5000000>;
 		regulator-max-microvolt = <5000000>;
 		gpio = <&pio 84 GPIO_ACTIVE_HIGH>;
 		enable-active-high;
+		vin-supply = <&reg_vsys>;
 	};
 
-	usb_p1_vbus: regulator-9 {
+	usb_p1_vbus: regulator-8 {
 		compatible = "regulator-fixed";
-		regulator-name = "usb_p1_vbus";
+		regulator-name = "vbus_p1";
 		regulator-min-microvolt = <5000000>;
 		regulator-max-microvolt = <5000000>;
 		gpio = <&pio 87 GPIO_ACTIVE_HIGH>;
 		enable-active-high;
+		vin-supply = <&reg_vsys>;
 	};
 
-	usb_p2_vbus: regulator-10 {
+	/* used by ssusb2 */
+	usb_p2_vbus: regulator-9 {
 		compatible = "regulator-fixed";
-		regulator-name = "usb_p2_vbus";
+		regulator-name = "wifi_3v3";
 		regulator-min-microvolt = <5000000>;
 		regulator-max-microvolt = <5000000>;
 		enable-active-high;
@@ -295,38 +305,47 @@
 };
 
 &mt6359_vcn18_ldo_reg {
+	regulator-name = "vcn18_pmu";
 	regulator-always-on;
 };
 
 &mt6359_vcn33_2_bt_ldo_reg {
+	regulator-name = "vcn33_2_pmu";
 	regulator-always-on;
 };
 
 &mt6359_vcore_buck_reg {
+	regulator-name = "dvdd_proc_l";
 	regulator-always-on;
 };
 
 &mt6359_vgpu11_buck_reg {
+	regulator-name = "dvdd_core";
 	regulator-always-on;
 };
 
 &mt6359_vpa_buck_reg {
+	regulator-name = "vpa_pmu";
 	regulator-max-microvolt = <3100000>;
 };
 
 &mt6359_vpu_buck_reg {
+	regulator-name = "dvdd_adsp";
 	regulator-always-on;
 };
 
 &mt6359_vrf12_ldo_reg {
+	regulator-name = "va12_abb2_pmu";
 	regulator-always-on;
 };
 
 &mt6359_vsim1_ldo_reg {
+	regulator-name = "vsim1_pmu";
 	regulator-enable-ramp-delay = <480>;
 };
 
 &mt6359_vufs_ldo_reg {
+	regulator-name = "vufs18_pmu";
 	regulator-always-on;
 };
 
@@ -871,10 +890,10 @@
 &xhci1 {
 	status = "okay";
 	vusb33-supply = <&mt6359_vusb_ldo_reg>;
-	vbus-supply = <&usb_hub_reset_1v8>;
 };
 
 &xhci2 {
 	status = "okay";
 	vusb33-supply = <&mt6359_vusb_ldo_reg>;
+	vbus-supply = <&sdio_fixed_3v3>; /* wifi_3v3 */
 };
