1STM32 VREFBUF - Voltage reference buffer 2 3Some STM32 devices embed a voltage reference buffer which can be used as 4voltage reference for ADCs, DACs and also as voltage reference for external 5components through the dedicated VREF+ pin. 6 7Required properties: 8- compatible: Must be "st,stm32-vrefbuf". 9- reg: Offset and length of VREFBUF register set. 10- clocks: Must contain an entry for peripheral clock. 11 12Optional properties: 13- vdda-supply: Phandle to the parent vdda supply regulator node. 14 15Example: 16 vrefbuf: regulator@58003c00 { 17 compatible = "st,stm32-vrefbuf"; 18 reg = <0x58003C00 0x8>; 19 clocks = <&rcc VREF_CK>; 20 regulator-min-microvolt = <1500000>; 21 regulator-max-microvolt = <2500000>; 22 vdda-supply = <&vdda>; 23 }; 24