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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 the7regulator node. The AS3722 is having 7 DCDC step-down regulators as8sd[0-6], 10 LDOs as ldo[0-7], ldo[9-11]. The input supply of these9regulators 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 initialization25 information for that regulator. See regulator.txt for a26 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 of33 this properties will tell which external input is34 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 supported40 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