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- regulator constraints (binding info: regulator.txt) 15- enable-active-high: Polarity of GPIO is Active high. If this property 16 is missing, the default assumed is Active low. 17 18 19Other kernel-style properties, are currently not used. 20 21Note: 22For the regulator constraints, driver expects that: 23- regulator-min-microvolt is equal to regulator-max-microvolt 24- regulator-min-microamp is equal to regulator-max-microamp 25 26Example: 27fixed_regulator@0 { 28 /* Mandatory */ 29 compatible = "regulator-fixed"; 30 regulator-name = "LED_3.3V"; 31 32 /* Optional: */ 33 gpio = <&gpc1 0 GPIO_ACTIVE_LOW>; 34 35 /* Optional for regulator uclass */ 36 regulator-min-microvolt = <3300000>; 37 regulator-max-microvolt = <3300000>; 38 regulator-min-microamp = <15000>; 39 regulator-max-microamp = <15000>; 40 regulator-always-on; 41 regulator-boot-on; 42 enable-active-high; 43}; 44