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Member "linux-5.3.1/Documentation/devicetree/bindings/regulator/as3722-regulator.txt" (21 Sep 2019, 2740 Bytes) of package /linux/kernel/v5.3/linux-5.3.1.tar.xz:


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    1 Regulator of AMS AS3722 PMIC.
    2 Name of the regulator subnode must be "regulators".
    3 
    4 Optional properties:
    5 --------------------
    6 The input supply of regulators are the optional properties on the
    7 regulator node. The AS3722 is having 7 DCDC step-down regulators as
    8 sd[0-6], 10 LDOs as ldo[0-7], ldo[9-11]. The input supply of these
    9 regulators are provided through following properties:
   10 vsup-sd2-supply: Input supply for SD2.
   11 vsup-sd3-supply: Input supply for SD3.
   12 vsup-sd4-supply: Input supply for SD4.
   13 vsup-sd5-supply: Input supply for SD5.
   14 vin-ldo0-supply: Input supply for LDO0.
   15 vin-ldo1-6-supply: Input supply for LDO1 and LDO6.
   16 vin-ldo2-5-7-supply: Input supply for LDO2, LDO5 and LDO7.
   17 vin-ldo3-4-supply: Input supply for LDO3 and LDO4.
   18 vin-ldo9-10-supply: Input supply for LDO9 and LDO10.
   19 vin-ldo11-supply: Input supply for LDO11.
   20 
   21 Optional 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 
   42 Example:
   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 	};