diff --git a/arch/arm/boot/dts/rk3288-evb-act8846.dts b/arch/arm/boot/dts/rk3288-evb-act8846.dts
index a76dd44adb53..d7b8bbc0c25f 100644
--- a/arch/arm/boot/dts/rk3288-evb-act8846.dts
+++ b/arch/arm/boot/dts/rk3288-evb-act8846.dts
@@ -17,7 +17,34 @@ / {
 	compatible = "rockchip,rk3288-evb-act8846", "rockchip,rk3288";
 };
 
+&cpu0 {
+	cpu0-supply = <&vdd_cpu>;
+};
+
 &i2c0 {
+	clock-frequency = <400000>;
+
+	vdd_cpu: syr827@40 {
+		compatible = "silergy,syr827";
+		fcs,suspend-voltage-selector = <1>;
+		reg = <0x40>;
+		regulator-name = "vdd_cpu";
+		regulator-min-microvolt = <850000>;
+		regulator-max-microvolt = <1350000>;
+		regulator-always-on;
+		regulator-boot-on;
+	};
+
+	vdd_gpu: syr828@41 {
+		compatible = "silergy,syr828";
+		fcs,suspend-voltage-selector = <1>;
+		reg = <0x41>;
+		regulator-name = "vdd_gpu";
+		regulator-min-microvolt = <850000>;
+		regulator-max-microvolt = <1350000>;
+		regulator-always-on;
+	};
+
 	hym8563@51 {
 		compatible = "haoyu,hym8563";
 		reg = <0x51>;
diff --git a/arch/arm/boot/dts/rk3288-evb-rk808.dts b/arch/arm/boot/dts/rk3288-evb-rk808.dts
index d453ddd4b476..3f7aa9e2e76a 100644
--- a/arch/arm/boot/dts/rk3288-evb-rk808.dts
+++ b/arch/arm/boot/dts/rk3288-evb-rk808.dts
@@ -23,7 +23,6 @@ &cpu0 {
 
 &i2c0 {
 	clock-frequency = <400000>;
-	status = "okay";
 
 	rk808: pmic@1b {
 		compatible = "rockchip,rk808";
diff --git a/arch/arm/boot/dts/rk3288-evb.dtsi b/arch/arm/boot/dts/rk3288-evb.dtsi
index 3e067dd65d0c..86ede5893ab6 100644
--- a/arch/arm/boot/dts/rk3288-evb.dtsi
+++ b/arch/arm/boot/dts/rk3288-evb.dtsi
@@ -104,6 +104,11 @@ &emmc {
 	status = "okay";
 };
 
+&hdmi {
+	ddc-i2c-bus = <&i2c5>;
+	status = "okay";
+};
+
 &sdmmc {
 	bus-width = <4>;
 	cap-mmc-highspeed;
@@ -120,6 +125,10 @@ &i2c0 {
 	status = "okay";
 };
 
+&i2c5 {
+	status = "okay";
+};
+
 &wdt {
 	status = "okay";
 };
@@ -187,3 +196,19 @@ &usb_host0_ehci {
 &usb_host1 {
 	status = "okay";
 };
+
+&vopb {
+	status = "okay";
+};
+
+&vopb_mmu {
+	status = "okay";
+};
+
+&vopl {
+	status = "okay";
+};
+
+&vopl_mmu {
+	status = "okay";
+};
diff --git a/arch/arm/boot/dts/rk3288-firefly.dtsi b/arch/arm/boot/dts/rk3288-firefly.dtsi
index 7f0ba9b24869..e6f873abbe0d 100644
--- a/arch/arm/boot/dts/rk3288-firefly.dtsi
+++ b/arch/arm/boot/dts/rk3288-firefly.dtsi
@@ -179,6 +179,11 @@ &emmc {
 	status = "okay";
 };
 
+&hdmi {
+	ddc-i2c-bus = <&i2c5>;
+	status = "okay";
+};
+
 &i2c0 {
 	clock-frequency = <400000>;
 	status = "okay";
@@ -265,6 +270,7 @@ vdd10_lcd: REG6 {
 				regulator-name = "vdd10_lcd";
 				regulator-min-microvolt = <1000000>;
 				regulator-max-microvolt = <1000000>;
+				regulator-always-on;
 			};
 
 			vcca_18: REG7 {
@@ -303,6 +309,7 @@ vcc18_lcd: REG12 {
 				regulator-name = "vcc18_lcd";
 				regulator-min-microvolt = <1800000>;
 				regulator-max-microvolt = <1800000>;
+				regulator-always-on;
 			};
 		};
 	};
@@ -462,6 +469,22 @@ &usb_otg {
 	status = "okay";
 };
 
+&vopb {
+	status = "okay";
+};
+
+&vopb_mmu {
+	status = "okay";
+};
+
+&vopl {
+	status = "okay";
+};
+
+&vopl_mmu {
+	status = "okay";
+};
+
 &wdt {
 	status = "okay";
 };
diff --git a/arch/arm/boot/dts/rk3288.dtsi b/arch/arm/boot/dts/rk3288.dtsi
index 37847c14b449..1141850d0acb 100644
--- a/arch/arm/boot/dts/rk3288.dtsi
+++ b/arch/arm/boot/dts/rk3288.dtsi
@@ -560,6 +560,7 @@ grf: syscon@ff770000 {
 	wdt: watchdog@ff800000 {
 		compatible = "rockchip,rk3288-wdt", "snps,dw-wdt";
 		reg = <0xff800000 0x100>;
+		clocks = <&cru PCLK_WDT>;
 		interrupts = <GIC_SPI 111 IRQ_TYPE_LEVEL_HIGH>;
 		status = "disabled";
 	};
@@ -645,7 +646,6 @@ hdmi: hdmi@ff980000 {
 		compatible = "rockchip,rk3288-dw-hdmi";
 		reg = <0xff980000 0x20000>;
 		reg-io-width = <4>;
-		ddc-i2c-bus = <&i2c5>;
 		rockchip,grf = <&grf>;
 		interrupts = <GIC_SPI 103 IRQ_TYPE_LEVEL_HIGH>;
 		clocks = <&cru  PCLK_HDMI_CTRL>, <&cru SCLK_HDMI_HDCP>;
diff --git a/include/dt-bindings/clock/rk3288-cru.h b/include/dt-bindings/clock/rk3288-cru.h
index f60ce72a2b2c..1e626335acf3 100644
--- a/include/dt-bindings/clock/rk3288-cru.h
+++ b/include/dt-bindings/clock/rk3288-cru.h
@@ -80,6 +80,9 @@
 #define SCLK_SDIO0_SAMPLE	119
 #define SCLK_SDIO1_SAMPLE	120
 #define SCLK_EMMC_SAMPLE	121
+#define SCLK_USBPHY480M_SRC	122
+#define SCLK_PVTM_CORE		123
+#define SCLK_PVTM_GPU		124
 
 #define DCLK_VOP0		190
 #define DCLK_VOP1		191
@@ -154,6 +157,7 @@
 #define PCLK_PUBL0		365
 #define PCLK_DDRUPCTL1		366
 #define PCLK_PUBL1		367
+#define PCLK_WDT		368
 
 /* hclk gates */
 #define HCLK_GPS		448