Kernel-3.10.0-957.el7_max8952

Maxim MAX8952 voltage regulator

Required properties:

• compatible: must be equal to “maxim,max8952”
• reg: I2C slave address, usually 0x60
• max8952,dvs-mode-microvolt: array of 4 integer values defining DVS voltages
  in microvolts. All values must be from range <770000, 1400000>
• any required generic properties defined in regulator.txt

Optional properties:

• max8952,vid-gpios: array of two GPIO pins used for DVS voltage selection
• max8952,en-gpio: GPIO used to control enable status of regulator
• max8952,default-mode: index of default DVS voltage, from <0, 3> range
• max8952,sync-freq: sync frequency, must be one of following values:
  • 0: 26 MHz
  • 1: 13 MHz
  • 2: 19.2 MHz
    Defaults to 26 MHz if not specified.
• max8952,ramp-speed: voltage ramp speed, must be one of following values:
  • 0: 32mV/us
  • 1: 16mV/us
  • 2: 8mV/us
  • 3: 4mV/us
  • 4: 2mV/us
  • 5: 1mV/us
  • 6: 0.5mV/us
  • 7: 0.25mV/us
    Defaults to 32mV/us if not specified.
• any available generic properties defined in regulator.txt

Example:

vdd_arm_reg: pmic@60 {
    compatible = "maxim,max8952";
    reg = <0x60>;

    /* max8952-specific properties */
    max8952,vid-gpios = <&gpx0 3 0>, <&gpx0 4 0>;
    max8952,en-gpio = <&gpx0 1 0>;
    max8952,default-mode = <0>;
    max8952,dvs-mode-microvolt = <1250000>, <1200000>,
                    <1050000>, <950000>;
    max8952,sync-freq = <0>;
    max8952,ramp-speed = <0>;

    /* generic regulator properties */
    regulator-name = "vdd_arm";
    regulator-min-microvolt = <770000>;
    regulator-max-microvolt = <1400000>;
    regulator-always-on;
    regulator-boot-on;
};