diff --git a/arch/arm/dts/rk3399-roc-pc.dtsi b/arch/arm/dts/rk3399-roc-pc.dtsi
index 9a1ce3a..9f225e9 100644
--- a/arch/arm/dts/rk3399-roc-pc.dtsi
+++ b/arch/arm/dts/rk3399-roc-pc.dtsi
@@ -110,20 +110,6 @@
 		regulator-max-microvolt = <5000000>;
 	};
 
-	/*
-	 * should be placed inside mp8859, but not until mp8859 has
-	 * its own dt-binding.
-	 */
-	dc_12v: mp8859-dcdc1 {
-		compatible = "regulator-fixed";
-		regulator-name = "dc_12v";
-		regulator-always-on;
-		regulator-boot-on;
-		regulator-min-microvolt = <12000000>;
-		regulator-max-microvolt = <12000000>;
-		vin-supply = <&vcc_vbus_typec0>;
-	};
-
 	/* switched by pmic_sleep */
 	vcc1v8_s3: vcca1v8_s3: vcc1v8-s3 {
 		compatible = "regulator-fixed";
@@ -176,7 +162,6 @@
 		pinctrl-names = "default";
 		pinctrl-0 = <&vcc5v0_host_en &hub_rst>;
 		regulator-name = "vcc5v0_host";
-		regulator-always-on;
 		vin-supply = <&vcc_sys>;
 	};
 
@@ -198,7 +183,6 @@
 		pinctrl-names = "default";
 		pinctrl-0 = <&vcc_sys_en>;
 		regulator-name = "vcc_sys";
-		regulator-always-on;
 		regulator-boot-on;
 		regulator-min-microvolt = <5000000>;
 		regulator-max-microvolt = <5000000>;
@@ -392,7 +376,6 @@
 
 			vcc_sdio: LDO_REG4 {
 				regulator-name = "vcc_sdio";
-				regulator-always-on;
 				regulator-boot-on;
 				regulator-min-microvolt = <1800000>;
 				regulator-max-microvolt = <3000000>;
@@ -549,6 +532,24 @@
 		vbus-supply = <&vcc_vbus_typec0>;
 		status = "okay";
 	};
+
+	mp8859: regulator@66 {
+		compatible = "mps,mp8859";
+		reg = <0x66>;
+		dc_12v: mp8859_dcdc {
+			regulator-name = "dc_12v";
+			regulator-min-microvolt = <12000000>;
+			regulator-max-microvolt = <12000000>;
+			regulator-always-on;
+			regulator-boot-on;
+			vin-supply = <&vcc_vbus_typec0>;
+
+			regulator-state-mem {
+				regulator-on-in-suspend;
+				regulator-suspend-microvolt = <12000000>;
+			};
+		};
+	};
 };
 
 &i2s0 {