Commit | Line | Data |
---|---|---|
42dc3023 GL |
1 | * Maxim MAX8973 Voltage Regulator |
2 | ||
3 | Required properties: | |
4 | ||
0f7d6ece LD |
5 | - compatible: must be one of following: |
6 | "maxim,max8973" | |
7 | "maxim,max77621". | |
42dc3023 GL |
8 | - reg: the i2c slave address of the regulator. It should be 0x1b. |
9 | ||
10 | Any standard regulator properties can be used to configure the single max8973 | |
11 | DCDC. | |
12 | ||
c2ffa973 LD |
13 | Optional properties: |
14 | ||
15 | -maxim,externally-enable: boolean, externally control the regulator output | |
16 | enable/disable. | |
69eb0980 LD |
17 | -maxim,enable-gpio: GPIO for enable control. If the valid GPIO is provided |
18 | then externally enable control will be considered. | |
c2ffa973 LD |
19 | -maxim,dvs-gpio: GPIO which is connected to DVS pin of device. |
20 | -maxim,dvs-default-state: Default state of GPIO during initialisation. | |
21 | 1 for HIGH and 0 for LOW. | |
22 | -maxim,enable-remote-sense: boolean, enable reote sense. | |
23 | -maxim,enable-falling-slew-rate: boolean, enable falling slew rate. | |
24 | -maxim,enable-active-discharge: boolean: enable active discharge. | |
25 | -maxim,enable-frequency-shift: boolean, enable 9% frequency shift. | |
26 | -maxim,enable-bias-control: boolean, enable bias control. By enabling this | |
27 | startup delay can be reduce to 20us from 220us. | |
3692db3a LD |
28 | -maxim,enable-etr: boolean, enable Enhanced Transient Response. |
29 | -maxim,enable-high-etr-sensitivity: boolean, Enhanced transient response | |
30 | circuit is enabled and set for high sensitivity. If this | |
31 | property is available then etr will be enable default. | |
32 | ||
33 | Enhanced transient response (ETR) will affect the configuration of CKADV. | |
c2ffa973 | 34 | |
42dc3023 GL |
35 | Example: |
36 | ||
37 | max8973@1b { | |
f986c356 | 38 | compatible = "maxim,max8973"; |
42dc3023 GL |
39 | reg = <0x1b>; |
40 | ||
41 | regulator-min-microvolt = <935000>; | |
42 | regulator-max-microvolt = <1200000>; | |
43 | regulator-boot-on; | |
44 | regulator-always-on; | |
45 | }; |