1 Versatile Express voltage regulators 1 Versatile Express voltage regulators
2 ------------------------------------ 2 ------------------------------------
3 3
4 Requires node properties: 4 Requires node properties:
5 - "compatible" value: "arm,vexpress-volt" 5 - "compatible" value: "arm,vexpress-volt"
6 - "arm,vexpress-sysreg,func" when controlled v 6 - "arm,vexpress-sysreg,func" when controlled via vexpress-sysreg
7 (see Documentation/devicetree/bindings/arm/v 7 (see Documentation/devicetree/bindings/arm/vexpress-config.yaml
8 for more details) 8 for more details)
9 9
10 Required regulator properties: 10 Required regulator properties:
11 - "regulator-name" 11 - "regulator-name"
12 - "regulator-always-on" 12 - "regulator-always-on"
13 13
14 Optional regulator properties: 14 Optional regulator properties:
15 - "regulator-min-microvolt" 15 - "regulator-min-microvolt"
16 - "regulator-max-microvolt" 16 - "regulator-max-microvolt"
17 17
18 See Documentation/devicetree/bindings/regulato 18 See Documentation/devicetree/bindings/regulator/regulator.txt
19 for more details about the regulator propertie 19 for more details about the regulator properties.
20 20
21 When no "regulator-[min|max]-microvolt" proper 21 When no "regulator-[min|max]-microvolt" properties are defined,
22 the device is treated as fixed (or rather "rea 22 the device is treated as fixed (or rather "read-only") regulator.
23 23
24 Example: 24 Example:
25 volt@0 { 25 volt@0 {
26 compatible = "arm,vexpress-vol 26 compatible = "arm,vexpress-volt";
27 arm,vexpress-sysreg,func = <2 27 arm,vexpress-sysreg,func = <2 0>;
28 regulator-name = "Cores"; 28 regulator-name = "Cores";
29 regulator-min-microvolt = <800 29 regulator-min-microvolt = <800000>;
30 regulator-max-microvolt = <105 30 regulator-max-microvolt = <1050000>;
31 regulator-always-on; 31 regulator-always-on;
32 }; 32 };
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