Fixed Voltage regulators Required properties: - compatible: Must be "regulator-fixed"; - regulator-name: Defined in regulator.txt as optional, but required here. Optional properties: - gpio: gpio to use for enable control - startup-delay-us: startup time in microseconds - enable-active-high: Polarity of GPIO is Active high If this property is missing, the default assumed is Active low. - gpio-open-drain: GPIO is open drain type. If this property is missing then default assumption is false. -vin-supply: Input supply name. Any property defined as part of the core regulator binding, defined in regulator.txt, can also be used. However a fixed voltage regulator is expected to have the regulator-min-microvolt and regulator-max-microvolt to be the same. Example: abc: fixedregulator@0 { compatible = "regulator-fixed"; regulator-name = "fixed-supply"; regulator-min-microvolt = <1800000>; regulator-max-microvolt = <1800000>; gpio = <&gpio1 16 0>; startup-delay-us = <70000>; enable-active-high; regulator-boot-on; gpio-open-drain; vin-supply = <&parent_reg>; };