forked from Minki/linux
53 lines
1.6 KiB
Plaintext
53 lines
1.6 KiB
Plaintext
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Maxim MAX8952 voltage regulator
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Required properties:
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- compatible: must be equal to "maxim,max8952"
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- reg: I2C slave address, usually 0x60
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- max8952,dvs-mode-microvolt: array of 4 integer values defining DVS voltages
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in microvolts. All values must be from range <770000, 1400000>
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- any required generic properties defined in regulator.txt
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Optional properties:
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- max8952,vid-gpios: array of two GPIO pins used for DVS voltage selection
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- max8952,en-gpio: GPIO used to control enable status of regulator
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- max8952,default-mode: index of default DVS voltage, from <0, 3> range
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- max8952,sync-freq: sync frequency, must be one of following values:
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- 0: 26 MHz
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- 1: 13 MHz
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- 2: 19.2 MHz
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Defaults to 26 MHz if not specified.
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- max8952,ramp-speed: voltage ramp speed, must be one of following values:
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- 0: 32mV/us
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- 1: 16mV/us
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- 2: 8mV/us
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- 3: 4mV/us
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- 4: 2mV/us
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- 5: 1mV/us
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- 6: 0.5mV/us
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- 7: 0.25mV/us
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Defaults to 32mV/us if not specified.
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- any available generic properties defined in regulator.txt
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Example:
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vdd_arm_reg: pmic@60 {
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compatible = "maxim,max8952";
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reg = <0x60>;
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/* max8952-specific properties */
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max8952,vid-gpios = <&gpx0 3 0>, <&gpx0 4 0>;
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max8952,en-gpio = <&gpx0 1 0>;
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max8952,default-mode = <0>;
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max8952,dvs-mode-microvolt = <1250000>, <1200000>,
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<1050000>, <950000>;
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max8952,sync-freq = <0>;
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max8952,ramp-speed = <0>;
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/* generic regulator properties */
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regulator-name = "vdd_arm";
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regulator-min-microvolt = <770000>;
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regulator-max-microvolt = <1400000>;
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regulator-always-on;
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regulator-boot-on;
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};
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