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nxp,pca9420

Vendor: NXP Semiconductors

Description

NXP PCA9420 PMIC

Properties

Top level properties

These property descriptions apply to “nxp,pca9420” nodes themselves. This page also describes child node properties in the following sections.

Properties not inherited from the base binding file.

Name

Type

Details

regulator-initial-mode

int

Initial operating mode of the regulator. Regulators modes can be
used for better power saving, or different voltage configurations,
and are hardware specific.

regulator-allowed-modes

array

Array of operating modes that software may configure for the
regulator at runtime. The set of possible operating modes depends on
what the hardware supports.

modesel-reg

int

Mode selection register. This register is used by the regulator driver
to select the target mode of the regulator

modesel-mask

int

Mode selection mask. Applied to a mode selection when it is written
to the modesel-reg.

Child node properties

Name

Type

Details

voltage-range

array

array of voltage values in uV, followed by the register value that
must be written to enable the voltage. For example, [3300000, 0x3]
denotes a value of 0x3 must be written to the register to set 3.3V

This property is required.

num-voltages

int

number of voltages present in the voltage-range array.

This property is required.

vsel-reg

int

I2C register to write voltage selection value to

This property is required.

vsel-mask

int

Mask to apply to the voltage range value when written to vsel
register

This property is required.

enable-reg

int

I2C register to write enable value to

This property is required.

enable-mask

int

Mask to apply to the enable bit (either 1 for enabled,
or 0 for disabled) when writing it to the I2C enable register.

This property is required.

enable-val

int

value to apply enable-mask to, and write to enable-reg in order
to enable the regulator output.

This property is required.

min-uV

int

Minimum voltage in microvolts that this regulator supports

This property is required.

max-uV

int

Maximum voltage in microvolts that this regulator supports

This property is required.

enable-inverted

boolean

If the enable bit should be zero to turn the regulator on, add this
property.

current-levels

array

Array of current limit values in uA, followed by the register value
that must be written to enable the current limit. For example,
[800000, 0x3] denotes a value of 0x3 must be written to the register
to set a current limit of 800mA

num-current-levels

int

Number of current limit levels this regulator supports. If left as
default, regulator current support will be disabled.

ilim-reg

int

Register to write the register value given in current-levels into
to set the current limit

ilim-mask

int

Mask to apply to the current-levels value before writing it to the
ilim-reg value to set the current limit

regulator-boot-on

boolean

regulator should be turned on at startup