1 GPIO controlled regulators
4 - compatible : Must be "regulator-gpio".
7 - gpio-enable : GPIO to use to enable/disable the regulator.
8 - gpios : GPIO group used to control voltage.
9 - states : Selection of available voltages and GPIO configs.
10 - startup-delay-us : Startup time in microseconds.
11 - enable-active-high : Polarity of GPIO is active high (default is low).
13 Any property defined as part of the core regulator binding defined in
14 regulator.txt can also be used.
18 mmciv: gpio-regulator {
19 compatible = "regulator-gpio";
21 regulator-name = "mmci-gpio-supply";
22 regulator-min-microvolt = <1800000>;
23 regulator-max-microvolt = <2600000>;
26 gpio-enable = <&gpio0 23 0x4>;
27 gpios = <&gpio0 24 0x4
34 startup-delay-us = <100000>;