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     1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
    2 %YAML 1.2
    3 ---
    4 $id: http://devicetree.org/schemas/regulator/st,stm32-vrefbuf.yaml#
    5 $schema: http://devicetree.org/meta-schemas/core.yaml#
    6 
    7 title: STMicroelectronics STM32 Voltage reference buffer bindings
    8 
    9 description: |
   10   Some STM32 devices embed a voltage reference buffer which can be used as
   11   voltage reference for ADCs, DACs and also as voltage reference for external
   12   components through the dedicated VREF+ pin.
   13 
   14 maintainers:
   15   - Fabrice Gasnier <fabrice.gasnier@foss.st.com>
   16 
   17 allOf:
   18   - $ref: "regulator.yaml#"
   19 
   20 properties:
   21   compatible:
   22     const: st,stm32-vrefbuf
   23 
   24   reg:
   25     maxItems: 1
   26 
   27   clocks:
   28     maxItems: 1
   29 
   30   vdda-supply:
   31     description: phandle to the vdda input analog voltage.
   32 
   33 required:
   34   - compatible
   35   - reg
   36   - clocks
   37   - vdda-supply
   38 
   39 unevaluatedProperties: false
   40 
   41 examples:
   42   - |
   43     #include <dt-bindings/clock/stm32mp1-clks.h>
   44     vrefbuf@50025000 {
   45       compatible = "st,stm32-vrefbuf";
   46       reg = <0x50025000 0x8>;
   47       regulator-min-microvolt = <1500000>;
   48       regulator-max-microvolt = <2500000>;
   49       clocks = <&rcc VREF>;
   50       vdda-supply = <&vdda>;
   51     };
   52 
   53 ...
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