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diff --git a/arch/arm/boot/dts/sunxi-bananapi-m2-plus-v1.2.dtsi b/arch/arm/boot/dts/sunxi-bananapi-m2-plus-v1.2.dtsi
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--- /dev/null
+++ b/arch/arm/boot/dts/sunxi-bananapi-m2-plus-v1.2.dtsi
@@ -0,0 +1,42 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Copyright (C) 2018 Chen-Yu Tsai <wens@csie.org>
+ */
+
+#include "sunxi-bananapi-m2-plus.dtsi"
+
+/ {
+ /*
+ * Bananapi M2+ v1.2 uses a GPIO line to change the effective
+ * resistance on the CPU regulator's feedback pin.
+ */
+ reg_vdd_cpux: vdd-cpux {
+ compatible = "regulator-gpio";
+ regulator-name = "vdd-cpux";
+ regulator-type = "voltage";
+ regulator-boot-on;
+ regulator-always-on;
+ regulator-min-microvolt = <1108475>;
+ regulator-max-microvolt = <1308475>;
+ regulator-ramp-delay = <50>; /* 4ms */
+ gpios = <&r_pio 0 1 GPIO_ACTIVE_HIGH>; /* PL1 */
+ gpios-states = <0x1>;
+ states = <1108475 0>, <1308475 1>;
+ };
+};
+
+&cpu0 {
+ cpu-supply = <&reg_vdd_cpux>;
+};
+
+&cpu1 {
+ cpu-supply = <&reg_vdd_cpux>;
+};
+
+&cpu2 {
+ cpu-supply = <&reg_vdd_cpux>;
+};
+
+&cpu3 {
+ cpu-supply = <&reg_vdd_cpux>;
+};