1Regulator of AMS AS3722 PMIC. 2Name of the regulator subnode must be "regulators". 3 4Optional properties: 5-------------------- 6The input supply of regulators are the optional properties on the 7regulator node. The AS3722 is having 7 DCDC step-down regulators as 8sd[0-6], 10 LDOs as ldo[0-7], ldo[9-11]. The input supply of these 9regulators are provided through following properties: 10vsup-sd2-supply: Input supply for SD2. 11vsup-sd3-supply: Input supply for SD3. 12vsup-sd4-supply: Input supply for SD4. 13vsup-sd5-supply: Input supply for SD5. 14vin-ldo0-supply: Input supply for LDO0. 15vin-ldo1-6-supply: Input supply for LDO1 and LDO6. 16vin-ldo2-5-7-supply: Input supply for LDO2, LDO5 and LDO7. 17vin-ldo3-4-supply: Input supply for LDO3 and LDO4. 18vin-ldo9-10-supply: Input supply for LDO9 and LDO10. 19vin-ldo11-supply: Input supply for LDO11. 20 21Optional nodes: 22-------------- 23- regulators : Must contain a sub-node per regulator from the list below. 24 Each sub-node should contain the constraints and initialization 25 information for that regulator. See regulator.txt for a 26 description of standard properties for these sub-nodes. 27 Additional custom properties are listed below. 28 sd[0-6], ldo[0-7], ldo[9-11]. 29 30 Optional sub-node properties: 31 ---------------------------- 32 ams,ext-control: External control of the rail. The option of 33 this properties will tell which external input is 34 controlling this rail. Valid values are 0, 1, 2 ad 3. 35 0: There is no external control of this rail. 36 1: Rail is controlled by ENABLE1 input pin. 37 2: Rail is controlled by ENABLE2 input pin. 38 3: Rail is controlled by ENABLE3 input pin. 39 ams,enable-tracking: Enable tracking with SD1, only supported 40 by LDO3. 41 42Example: 43------- 44 ams3722: ams3722 { 45 compatible = "ams,as3722"; 46 reg = <0x40>; 47 ... 48 49 regulators { 50 vsup-sd2-supply = <...>; 51 ... 52 53 sd0 { 54 regulator-name = "vdd_cpu"; 55 regulator-min-microvolt = <700000>; 56 regulator-max-microvolt = <1400000>; 57 regulator-always-on; 58 ams,ext-control = <2>; 59 }; 60 61 sd1 { 62 regulator-name = "vdd_core"; 63 regulator-min-microvolt = <700000>; 64 regulator-max-microvolt = <1400000>; 65 regulator-always-on; 66 ams,ext-control = <1>; 67 }; 68 69 sd2 { 70 regulator-name = "vddio_ddr"; 71 regulator-min-microvolt = <1350000>; 72 regulator-max-microvolt = <1350000>; 73 regulator-always-on; 74 }; 75 76 sd4 { 77 regulator-name = "avdd-hdmi-pex"; 78 regulator-min-microvolt = <1050000>; 79 regulator-max-microvolt = <1050000>; 80 regulator-always-on; 81 }; 82 83 sd5 { 84 regulator-name = "vdd-1v8"; 85 regulator-min-microvolt = <1800000>; 86 regulator-max-microvolt = <1800000>; 87 regulator-always-on; 88 }; 89 .... 90 }; 91 }; 92