tjh.dev
Linux kernel mirror (for testing)
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kernel
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linux
1Fixed Voltage regulators
2
3Required properties:
4- compatible: Must be "regulator-fixed";
5
6Optional properties:
7- gpio: gpio to use for enable control
8- startup-delay-us: startup time in microseconds
9- enable-active-high: Polarity of GPIO is Active high
10If this property is missing, the default assumed is Active low.
11- gpio-open-drain: GPIO is open drain type.
12 If this property is missing then default assumption is false.
13-vin-supply: Input supply name.
14
15Any property defined as part of the core regulator
16binding, defined in regulator.txt, can also be used.
17However a fixed voltage regulator is expected to have the
18regulator-min-microvolt and regulator-max-microvolt
19to be the same.
20
21Example:
22
23 abc: fixedregulator@0 {
24 compatible = "regulator-fixed";
25 regulator-name = "fixed-supply";
26 regulator-min-microvolt = <1800000>;
27 regulator-max-microvolt = <1800000>;
28 gpio = <&gpio1 16 0>;
29 startup-delay-us = <70000>;
30 enable-active-high;
31 regulator-boot-on;
32 gpio-open-drain;
33 vin-supply = <&parent_reg>;
34 };