diff --git a/arch/arm/boot/dts/rk3288-evb-act8846.dts b/arch/arm/boot/dts/rk3288-evb-act8846.dts
index 10e5c5283c6f..6dae0d005cde 100644
--- a/arch/arm/boot/dts/rk3288-evb-act8846.dts
+++ b/arch/arm/boot/dts/rk3288-evb-act8846.dts
@@ -115,6 +115,7 @@ vdd_gpu: syr828@41 {
 		regulator-min-microvolt = <850000>;
 		regulator-max-microvolt = <1350000>;
 		regulator-always-on;
+		regulator-ramp-delay = <6000>;
 		vin-supply = <&vcc_sys>;
 	};
 
diff --git a/arch/arm/boot/dts/rk3288-evb-rk808.dts b/arch/arm/boot/dts/rk3288-evb-rk808.dts
index 1045cc2c9427..79838d81ee17 100644
--- a/arch/arm/boot/dts/rk3288-evb-rk808.dts
+++ b/arch/arm/boot/dts/rk3288-evb-rk808.dts
@@ -118,6 +118,7 @@ vdd_gpu: DCDC_REG2 {
 				regulator-min-microvolt = <850000>;
 				regulator-max-microvolt = <1250000>;
 				regulator-name = "vdd_gpu";
+				regulator-ramp-delay = <6000>;
 				regulator-state-mem {
 					regulator-on-in-suspend;
 					regulator-suspend-microvolt = <1000000>;
diff --git a/arch/arm/boot/dts/rk3288-fennec.dts b/arch/arm/boot/dts/rk3288-fennec.dts
index f3a226b950c6..cd039cdcc96b 100644
--- a/arch/arm/boot/dts/rk3288-fennec.dts
+++ b/arch/arm/boot/dts/rk3288-fennec.dts
@@ -271,6 +271,7 @@ vdd_gpu: DCDC_REG2 {
 				regulator-min-microvolt = <850000>;
 				regulator-max-microvolt = <1250000>;
 				regulator-name = "vdd_gpu";
+				regulator-ramp-delay = <6000>;
 				regulator-state-mem {
 					regulator-on-in-suspend;
 					regulator-suspend-microvolt = <1000000>;
diff --git a/arch/arm/boot/dts/rk3288-firefly.dtsi b/arch/arm/boot/dts/rk3288-firefly.dtsi
index b6b5446df3f9..3f1d891fdff8 100644
--- a/arch/arm/boot/dts/rk3288-firefly.dtsi
+++ b/arch/arm/boot/dts/rk3288-firefly.dtsi
@@ -318,6 +318,7 @@ vdd_gpu: syr828@41 {
 		regulator-min-microvolt = <850000>;
 		regulator-max-microvolt = <1350000>;
 		regulator-always-on;
+		regulator-ramp-delay = <6000>;
 		vin-supply = <&vcc_sys>;
 	};
 
diff --git a/arch/arm/boot/dts/rk3288-miniarm.dts b/arch/arm/boot/dts/rk3288-miniarm.dts
index 4b7ffe430fed..e1177dd97dcb 100644
--- a/arch/arm/boot/dts/rk3288-miniarm.dts
+++ b/arch/arm/boot/dts/rk3288-miniarm.dts
@@ -216,6 +216,7 @@ vdd_gpu: DCDC_REG2 {
 				regulator-min-microvolt = <850000>;
 				regulator-max-microvolt = <1250000>;
 				regulator-name = "vdd_gpu";
+				regulator-ramp-delay = <6000>;
 				regulator-state-mem {
 					regulator-on-in-suspend;
 					regulator-suspend-microvolt = <1000000>;
diff --git a/arch/arm/boot/dts/rk3288-popmetal.dts b/arch/arm/boot/dts/rk3288-popmetal.dts
index cc2be77a2824..e240771818d3 100644
--- a/arch/arm/boot/dts/rk3288-popmetal.dts
+++ b/arch/arm/boot/dts/rk3288-popmetal.dts
@@ -256,6 +256,7 @@ vdd_gpu: DCDC_REG2 {
 				regulator-min-microvolt = <850000>;
 				regulator-max-microvolt = <1250000>;
 				regulator-name = "vdd_gpu";
+				regulator-ramp-delay = <6000>;
 				regulator-state-mem {
 					regulator-on-in-suspend;
 					regulator-suspend-microvolt = <1000000>;