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93cf0ae775
Add regulator driver for STM32 voltage reference buffer which can be used as voltage reference for ADCs, DACs and external components through dedicated VREF+ pin. Signed-off-by: Fabrice Gasnier <fabrice.gasnier@st.com> Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
24 lines
731 B
Plaintext
24 lines
731 B
Plaintext
STM32 VREFBUF - Voltage reference buffer
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Some STM32 devices embed a voltage reference buffer which can be used as
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voltage reference for ADCs, DACs and also as voltage reference for external
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components through the dedicated VREF+ pin.
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Required properties:
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- compatible: Must be "st,stm32-vrefbuf".
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- reg: Offset and length of VREFBUF register set.
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- clocks: Must contain an entry for peripheral clock.
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Optional properties:
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- vdda-supply: Phandle to the parent vdda supply regulator node.
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Example:
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vrefbuf: regulator@58003c00 {
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compatible = "st,stm32-vrefbuf";
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reg = <0x58003C00 0x8>;
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clocks = <&rcc VREF_CK>;
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regulator-min-microvolt = <1500000>;
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regulator-max-microvolt = <2500000>;
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vdda-supply = <&vdda>;
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};
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