1 # SPDX-License-Identifier: (GPL-2.0-only OR BS 1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2 %YAML 1.2 2 %YAML 1.2
3 --- 3 ---
4 $id: http://devicetree.org/schemas/regulator/s 4 $id: http://devicetree.org/schemas/regulator/st,stm32-vrefbuf.yaml#
5 $schema: http://devicetree.org/meta-schemas/co 5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6 6
7 title: STMicroelectronics STM32 Voltage refere 7 title: STMicroelectronics STM32 Voltage reference buffer
8 8
9 description: | 9 description: |
10 Some STM32 devices embed a voltage reference 10 Some STM32 devices embed a voltage reference buffer which can be used as
11 voltage reference for ADCs, DACs and also as 11 voltage reference for ADCs, DACs and also as voltage reference for external
12 components through the dedicated VREF+ pin. 12 components through the dedicated VREF+ pin.
13 13
14 maintainers: 14 maintainers:
15 - Fabrice Gasnier <fabrice.gasnier@foss.st.co 15 - Fabrice Gasnier <fabrice.gasnier@foss.st.com>
16 16
17 allOf: 17 allOf:
18 - $ref: regulator.yaml# 18 - $ref: regulator.yaml#
19 19
20 properties: 20 properties:
21 compatible: 21 compatible:
22 const: st,stm32-vrefbuf 22 const: st,stm32-vrefbuf
23 23
24 reg: 24 reg:
25 maxItems: 1 25 maxItems: 1
26 26
27 clocks: 27 clocks:
28 maxItems: 1 28 maxItems: 1
29 29
30 vdda-supply: 30 vdda-supply:
31 description: phandle to the vdda input ana 31 description: phandle to the vdda input analog voltage.
32 32
33 access-controllers: 33 access-controllers:
34 minItems: 1 34 minItems: 1
35 maxItems: 2 35 maxItems: 2
36 36
37 required: 37 required:
38 - compatible 38 - compatible
39 - reg 39 - reg
40 - clocks 40 - clocks
41 - vdda-supply 41 - vdda-supply
42 42
43 unevaluatedProperties: false 43 unevaluatedProperties: false
44 44
45 examples: 45 examples:
46 - | 46 - |
47 #include <dt-bindings/clock/stm32mp1-clks. 47 #include <dt-bindings/clock/stm32mp1-clks.h>
48 vrefbuf@50025000 { 48 vrefbuf@50025000 {
49 compatible = "st,stm32-vrefbuf"; 49 compatible = "st,stm32-vrefbuf";
50 reg = <0x50025000 0x8>; 50 reg = <0x50025000 0x8>;
51 regulator-min-microvolt = <1500000>; 51 regulator-min-microvolt = <1500000>;
52 regulator-max-microvolt = <2500000>; 52 regulator-max-microvolt = <2500000>;
53 clocks = <&rcc VREF>; 53 clocks = <&rcc VREF>;
54 vdda-supply = <&vdda>; 54 vdda-supply = <&vdda>;
55 }; 55 };
56 56
57 ... 57 ...
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