diff options
| author | Fabrice Gasnier <fabrice.gasnier@st.com> | 2017-08-30 17:55:27 +0200 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2017-08-30 18:28:31 +0100 |
| commit | ef7bb293a670c7a81c7a5b8aad6b93ba32e0e9ec (patch) | |
| tree | 88eed9d256facb151fb4cca0ace277560a7669c5 /Documentation/devicetree | |
| parent | 5771a8c08880cdca3bfb4a3fc6d309d6bba20877 (diff) | |
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: Fabrice Gasnier <fabrice.gasnier@st.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'Documentation/devicetree')
| -rw-r--r-- | Documentation/devicetree/bindings/regulator/st,stm32-vrefbuf.txt | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/regulator/st,stm32-vrefbuf.txt b/Documentation/devicetree/bindings/regulator/st,stm32-vrefbuf.txt new file mode 100644 index 000000000000..3944ee3e731e --- /dev/null +++ b/Documentation/devicetree/bindings/regulator/st,stm32-vrefbuf.txt @@ -0,0 +1,20 @@ +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>; + }; |