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Diffstat (limited to 'Documentation/devicetree/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 | }; | ||