Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit ef7bb293 authored by Fabrice Gasnier's avatar Fabrice Gasnier Committed by Mark Brown
Browse files

regulator: Add STM32 Voltage Reference Buffer 



Document STM32 VREFBUF (voltage reference buffer) which can be used as
voltage reference for ADCs, DACs and external components.

Signed-off-by: default avatarFabrice Gasnier <fabrice.gasnier@st.com>
Acked-by: default avatarRob Herring <robh@kernel.org>
Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent 5771a8c0

Documentation/devicetree/bindings/regulator/st,stm32-vrefbuf.txt

0 → 100644
+20 −0
Original line number Diff line number Diff line 
STM32 VREFBUF - Voltage reference buffer



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.



Required properties:

- compatible:		Must be "st,stm32-vrefbuf".

- reg:			Offset and length of VREFBUF register set.

- clocks:		Must contain an entry for peripheral clock.



Example:

	vrefbuf: regulator@58003C00 {

		compatible = "st,stm32-vrefbuf";

		reg = <0x58003C00 0x8>;

		clocks = <&rcc VREF_CK>;

		regulator-min-microvolt = <1500000>;

		regulator-max-microvolt = <2500000>;

		vdda-supply = <&vdda>;

	};