| Fabrice Gasnier | 93cf0ae | 2018-04-26 17:00:46 +0200 | [diff] [blame] | 1 | STM32 VREFBUF - Voltage reference buffer |
| 2 | |
| 3 | Some STM32 devices embed a voltage reference buffer which can be used as |
| 4 | voltage reference for ADCs, DACs and also as voltage reference for external |
| 5 | components through the dedicated VREF+ pin. |
| 6 | |
| 7 | Required properties: |
| 8 | - compatible: Must be "st,stm32-vrefbuf". |
| 9 | - reg: Offset and length of VREFBUF register set. |
| 10 | - clocks: Must contain an entry for peripheral clock. |
| 11 | |
| 12 | Optional properties: |
| 13 | - vdda-supply: Phandle to the parent vdda supply regulator node. |
| 14 | |
| 15 | Example: |
| 16 | vrefbuf: regulator@58003c00 { |
| 17 | compatible = "st,stm32-vrefbuf"; |
| 18 | reg = <0x58003C00 0x8>; |
| 19 | clocks = <&rcc VREF_CK>; |
| 20 | regulator-min-microvolt = <1500000>; |
| 21 | regulator-max-microvolt = <2500000>; |
| 22 | vdda-supply = <&vdda>; |
| 23 | }; |