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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/regulator/st,stm32-vrefbuf.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: STMicroelectronics STM32 Voltage reference buffer
description: |
Some STM32 devices embed a voltage reference buffer which can be used as
voltage reference for ADCs, DACs and also as voltage reference for external
components through the dedicated VREF+ pin.
maintainers:
- Fabrice Gasnier <fabrice.gasnier@foss.st.com>
allOf:
- $ref: regulator.yaml#
properties:
compatible:
const: st,stm32-vrefbuf
reg:
maxItems: 1
clocks:
maxItems: 1
vdda-supply:
description: phandle to the vdda input analog voltage.
required:
- compatible
- reg
- clocks
- vdda-supply
unevaluatedProperties: false
examples:
- |
#include <dt-bindings/clock/stm32mp1-clks.h>
vrefbuf@50025000 {
compatible = "st,stm32-vrefbuf";
reg = <0x50025000 0x8>;
regulator-min-microvolt = <1500000>;
regulator-max-microvolt = <2500000>;
clocks = <&rcc VREF>;
vdda-supply = <&vdda>;
};
...
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