1 Fixed Voltage regulator 2 3 Binding: 4 The binding is done by the property "compatible" - this is different, than for 5 binding by the node prefix (doc/device-tree-bindings/regulator/regulator.txt). 6 7 Required properties: 8 - compatible: "regulator-fixed" 9 - regulator-name: this is required by the regulator uclass 10 11 Optional 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 19 Other kernel-style properties, are currently not used. 20 21 Note: 22 For 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 26 Example: 27 fixed_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
