linux/Documentation/devicetree/bindings/regulator/max8952.txt
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   1Maxim MAX8952 voltage regulator
   2
   3Required properties:
   4- compatible: must be equal to "maxim,max8952"
   5- reg: I2C slave address, usually 0x60
   6- max8952,dvs-mode-microvolt: array of 4 integer values defining DVS voltages
   7  in microvolts. All values must be from range <770000, 1400000>
   8- any required generic properties defined in regulator.txt
   9
  10Optional properties:
  11- max8952,vid-gpios: array of two GPIO pins used for DVS voltage selection
  12- max8952,en-gpio: GPIO used to control enable status of regulator
  13- max8952,default-mode: index of default DVS voltage, from <0, 3> range
  14- max8952,sync-freq: sync frequency, must be one of following values:
  15    - 0: 26 MHz
  16    - 1: 13 MHz
  17    - 2: 19.2 MHz
  18  Defaults to 26 MHz if not specified.
  19- max8952,ramp-speed: voltage ramp speed, must be one of following values:
  20    - 0: 32mV/us
  21    - 1: 16mV/us
  22    - 2: 8mV/us
  23    - 3: 4mV/us
  24    - 4: 2mV/us
  25    - 5: 1mV/us
  26    - 6: 0.5mV/us
  27    - 7: 0.25mV/us
  28  Defaults to 32mV/us if not specified.
  29- any available generic properties defined in regulator.txt
  30
  31Example:
  32
  33        vdd_arm_reg: pmic@60 {
  34                compatible = "maxim,max8952";
  35                reg = <0x60>;
  36
  37                /* max8952-specific properties */
  38                max8952,vid-gpios = <&gpx0 3 0>, <&gpx0 4 0>;
  39                max8952,en-gpio = <&gpx0 1 0>;
  40                max8952,default-mode = <0>;
  41                max8952,dvs-mode-microvolt = <1250000>, <1200000>,
  42                                                <1050000>, <950000>;
  43                max8952,sync-freq = <0>;
  44                max8952,ramp-speed = <0>;
  45
  46                /* generic regulator properties */
  47                regulator-name = "vdd_arm";
  48                regulator-min-microvolt = <770000>;
  49                regulator-max-microvolt = <1400000>;
  50                regulator-always-on;
  51                regulator-boot-on;
  52        };
  53