Commit | Line | Data |
---|---|---|
3ff4aa95 TF |
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 | }; |