mirror of https://gitee.com/openkylin/linux.git
46 lines
1.6 KiB
Plaintext
46 lines
1.6 KiB
Plaintext
* Maxim MAX8973 Voltage Regulator
|
|
|
|
Required properties:
|
|
|
|
- compatible: must be one of following:
|
|
"maxim,max8973"
|
|
"maxim,max77621".
|
|
- reg: the i2c slave address of the regulator. It should be 0x1b.
|
|
|
|
Any standard regulator properties can be used to configure the single max8973
|
|
DCDC.
|
|
|
|
Optional properties:
|
|
|
|
-maxim,externally-enable: boolean, externally control the regulator output
|
|
enable/disable.
|
|
-maxim,enable-gpio: GPIO for enable control. If the valid GPIO is provided
|
|
then externally enable control will be considered.
|
|
-maxim,dvs-gpio: GPIO which is connected to DVS pin of device.
|
|
-maxim,dvs-default-state: Default state of GPIO during initialisation.
|
|
1 for HIGH and 0 for LOW.
|
|
-maxim,enable-remote-sense: boolean, enable reote sense.
|
|
-maxim,enable-falling-slew-rate: boolean, enable falling slew rate.
|
|
-maxim,enable-active-discharge: boolean: enable active discharge.
|
|
-maxim,enable-frequency-shift: boolean, enable 9% frequency shift.
|
|
-maxim,enable-bias-control: boolean, enable bias control. By enabling this
|
|
startup delay can be reduce to 20us from 220us.
|
|
-maxim,enable-etr: boolean, enable Enhanced Transient Response.
|
|
-maxim,enable-high-etr-sensitivity: boolean, Enhanced transient response
|
|
circuit is enabled and set for high sensitivity. If this
|
|
property is available then etr will be enable default.
|
|
|
|
Enhanced transient response (ETR) will affect the configuration of CKADV.
|
|
|
|
Example:
|
|
|
|
max8973@1b {
|
|
compatible = "maxim,max8973";
|
|
reg = <0x1b>;
|
|
|
|
regulator-min-microvolt = <935000>;
|
|
regulator-max-microvolt = <1200000>;
|
|
regulator-boot-on;
|
|
regulator-always-on;
|
|
};
|