diff options
| author | Fabrice Gasnier <fabrice.gasnier@st.com> | 2018-04-26 18:00:46 +0300 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2018-05-08 16:07:39 +0300 |
| commit | 93cf0ae7758d66475963a6b2186e41c51a1840aa (patch) | |
| tree | 888f61744cfc5af325ecaf78de55420014f00e70 /doc | |
| parent | 743f6c4ae12ee62d42c5a0626aa19ea6d2cdceb3 (diff) | |
| download | u-boot-93cf0ae7758d66475963a6b2186e41c51a1840aa.tar.xz | |
power: regulator: Add support for stm32-vrefbuf
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>
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>; + }; |