1Fixed Voltage regulator 2 3Binding: 4The binding is done by the property "compatible" - this is different, than for 5binding by the node prefix (doc/device-tree-bindings/regulator/regulator.txt). 6 7Required properties: 8- compatible: "regulator-fixed" 9- regulator-name: this is required by the regulator uclass 10 11Optional properties: 12- gpio: GPIO to use for enable control 13- startup-delay-us: startup time in microseconds 14- u-boot,off-on-delay-us: off delay time in microseconds 15- regulator constraints (binding info: regulator.txt) 16- enable-active-high: Polarity of GPIO is Active high. If this property 17 is missing, the default assumed is Active low. 18 19 20Other kernel-style properties, are currently not used. 21 22Note: 23For the regulator constraints, driver expects that: 24- regulator-min-microvolt is equal to regulator-max-microvolt 25- regulator-min-microamp is equal to regulator-max-microamp 26 27Example: 28fixed_regulator@0 { 29 /* Mandatory */ 30 compatible = "regulator-fixed"; 31 regulator-name = "LED_3.3V"; 32 33 /* Optional: */ 34 gpio = <&gpc1 0 GPIO_ACTIVE_LOW>; 35 36 /* Optional for regulator uclass */ 37 regulator-min-microvolt = <3300000>; 38 regulator-max-microvolt = <3300000>; 39 regulator-min-microamp = <15000>; 40 regulator-max-microamp = <15000>; 41 regulator-always-on; 42 regulator-boot-on; 43 enable-active-high; 44}; 45