u-boot/arch/arm/dts/stm32mp15xx-dhcor-io1v8.dtsi

// SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause)
/*
 * Copyright (C) Linaro Ltd 2019 - All Rights Reserved
 * Author: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
 * Copyright (C) 2020 Marek Vasut <marex@denx.de>
 */

/ {
	/* Enpirion EP3A8LQI U2 on the DHCOR */
	vdd_io: regulator-buck-io {
		compatible = "regulator-fixed";
		regulator-name = "buck-io";
		regulator-min-microvolt = <1800000>;
		regulator-max-microvolt = <1800000>;
		regulator-always-on;
		regulator-boot-on;
		vin-supply = <&vdd>;
	};
};

&pwr_regulators {
	vdd-supply = <&vdd_io>;
};