x-powers,axp192-regulator

Vendor: X-Powers

Description

AXP192 PMIC

The PMIC has three DCDC converters and two LDOs (LDO1 cannot be disabled).
All need to be defined as children nodes.
For example:

i2c {
  pmic@34 {
    reg = <0x34>;
    ...
    regulators {
      compatible = "x-powers,axp192-regulator";

      DCDC1 {
        /* all properties for DCDC1 */
      };
      DCDC2 {
        /* all properties for DCDC2 */
      };
      DCDC3 {
        /* all properties for DCDC3 */
      };
      LDOIO0 {
        /* all properties for LDOIO0 */
      };
      LDO2 {
        /* all properties for LDO2 */
      };
      LDO3 {
        /* all properties for LDO3 */
      };
    };
  };
};

Properties

Top level properties

These property descriptions apply to “x-powers,axp192-regulator” nodes themselves. This page also describes child node properties in the following sections.

Properties not inherited from the base binding file.

(None)

Child node properties

Name

Type

Details

regulator-init-microvolt

int

Voltage set during initialisation

regulator-min-microvolt

int

smallest voltage consumers may set

regulator-max-microvolt

int

largest voltage consumers may set

regulator-always-on

boolean

boolean, regulator should never be disabled

regulator-boot-on

boolean

bootloader/firmware enabled regulator.
It's expected that this regulator was left on by the bootloader.
If the bootloader didn't leave it on then OS should turn it on
at boot but shouldn't prevent it from being turned off later.
This property is intended to only be used for regulators where
software cannot read the state of the regulator.

regulator-boot-off

boolean

Regulator should be disabled on boot.

regulator-initial-mode

int

Initial operating mode. AXP192 supports 2 different power modes:
AXP192_DCDC_MODE_AUTO: Auto (0, default)
AXP192_DCDC_MODE_PWM:  PWM

Legal values: 0, 1

regulator-allowed-modes

array

List of operating modes that software is allowed to configure for the
regulator at run-time. Elements may be specified in any order. The set of
possible operating modes depends on the capabilities of every hardware so
each device binding document explains which values the regulator supports.