The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)

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FreeBSD/Linux Kernel Cross Reference
sys/contrib/device-tree/Bindings/regulator/max8952.txt

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    1 Maxim MAX8952 voltage regulator
    2 
    3 Required 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 
   10 Optional 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 
   31 Example:
   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         };

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