Kernel-4.18.0-80.el8_as3722-regulator

Regulator of AMS AS3722 PMIC.
Name of the regulator subnode must be “regulators”.

Optional properties:

The input supply of regulators are the optional properties on the
regulator node. The AS3722 is having 7 DCDC step-down regulators as
sd[0-6], 10 LDOs as ldo[0-7], ldo[9-11]. The input supply of these
regulators are provided through following properties:
vsup-sd2-supply: Input supply for SD2.
vsup-sd3-supply: Input supply for SD3.
vsup-sd4-supply: Input supply for SD4.
vsup-sd5-supply: Input supply for SD5.
vin-ldo0-supply: Input supply for LDO0.
vin-ldo1-6-supply: Input supply for LDO1 and LDO6.
vin-ldo2-5-7-supply: Input supply for LDO2, LDO5 and LDO7.
vin-ldo3-4-supply: Input supply for LDO3 and LDO4.
vin-ldo9-10-supply: Input supply for LDO9 and LDO10.
vin-ldo11-supply: Input supply for LDO11.

Optional nodes:

• regulators : Must contain a sub-node per regulator from the list below.

       Each sub-node should contain the constraints and initialization
       information for that regulator. See regulator.txt for a
       description of standard properties for these sub-nodes.
       Additional custom properties  are listed below.
       sd[0-6], ldo[0-7], ldo[9-11].
  
       Optional sub-node properties:
       ----------------------------
    ams,ext-control: External control of the rail. The option of
        this properties will tell which external input is
        controlling this rail. Valid values are 0, 1, 2 ad 3.
        0: There is no external control of this rail.
        1: Rail is controlled by ENABLE1 input pin.
        2: Rail is controlled by ENABLE2 input pin.
        3: Rail is controlled by ENABLE3 input pin.
    ams,enable-tracking: Enable tracking with SD1, only supported
        by LDO3.
  

Example:

ams3722: ams3722 {
    compatible = "ams,as3722";
    reg = <0x40>;
    ...

    regulators {
        vsup-sd2-supply = <...>;
        ...

        sd0 {
            regulator-name = "vdd_cpu";
            regulator-min-microvolt = <700000>;
            regulator-max-microvolt = <1400000>;
            regulator-always-on;
            ams,ext-control = <2>;
        };

        sd1 {
            regulator-name = "vdd_core";
            regulator-min-microvolt = <700000>;
            regulator-max-microvolt = <1400000>;
            regulator-always-on;
            ams,ext-control = <1>;
        };

        sd2 {
            regulator-name = "vddio_ddr";
            regulator-min-microvolt = <1350000>;
            regulator-max-microvolt = <1350000>;
            regulator-always-on;
        };

        sd4 {
            regulator-name = "avdd-hdmi-pex";
            regulator-min-microvolt = <1050000>;
            regulator-max-microvolt = <1050000>;
            regulator-always-on;
        };

        sd5 {
            regulator-name = "vdd-1v8";
            regulator-min-microvolt = <1800000>;
            regulator-max-microvolt = <1800000>;
            regulator-always-on;
        };
        ....
    };
};