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Diffstat (limited to 'doc')
| -rw-r--r-- | doc/device-tree-bindings/regulator/st,stm32-vrefbuf.txt | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/doc/device-tree-bindings/regulator/st,stm32-vrefbuf.txt b/doc/device-tree-bindings/regulator/st,stm32-vrefbuf.txt new file mode 100644 index 0000000000..0f6b6feda3 --- /dev/null +++ b/doc/device-tree-bindings/regulator/st,stm32-vrefbuf.txt @@ -0,0 +1,23 @@ +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. + +Optional properties: +- vdda-supply: Phandle to the parent vdda supply regulator node. + +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>; + }; |