consumer.h File Reference

Regulator consumer API based on linux regulator API. More...

#include <zephyr/types.h>
#include <drivers/regulator.h>

Go to the source code of this file.

Functions
int	regulator_count_voltages (const struct device *dev)
	Return the number of supported voltage levels Returns the number of selectors, or negative errno. Selectors are numbered starting at zero, and typically correspond to bitfields in hardware registers. More...
int	regulator_list_voltages (const struct device *dev, unsigned int selector)
	Return supported voltage Returns a voltage that can be passed to regulator_set_voltage(), zero if the selector code can't be used, or a negative errno. More...
int	regulator_is_supported_voltage (const struct device *dev, int min_uV, int max_uV)
	Check if a voltage range can be supported. More...
int	regulator_set_voltage (const struct device *dev, int min_uV, int max_uV)
	Set regulator output voltage. Sets a regulator to the closest supported output voltage. More...
int	regulator_get_voltage (const struct device *dev)
	Get regulator output voltage. Returns the current regulator voltage in microvolts. More...
int	regulator_set_current_limit (const struct device *dev, int min_uA, int max_uA)
	Set regulator output current limit Sets current sink to desired output current. More...
int	regulator_get_current_limit (const struct device *dev)
	Get regulator output current. Note the current limit must have been set for this call to succeed. More...

Detailed Description

Regulator consumer API based on linux regulator API.

Copyright (c) 2021 NXP

SPDX-License-Identifier: Apache-2.0

This API extends the Zephyr regulator API by implementing voltage and current level control for supported regulators. Currently, the only supported device is the NXP PCA9420 PMIC.

Function Documentation

regulator_count_voltages()

int regulator_count_voltages

(

const struct device *

dev

)

Return the number of supported voltage levels Returns the number of selectors, or negative errno. Selectors are numbered starting at zero, and typically correspond to bitfields in hardware registers.

Parameters

dev	Regulator device to count voltage levels for.

Returns

number of selectors, or negative errno.

regulator_get_current_limit()

int regulator_get_current_limit

(

const struct device *

dev

)

Get regulator output current. Note the current limit must have been set for this call to succeed.

Parameters

dev	Regulator to query

Returns

current limit in uA, or errno

regulator_get_voltage()

int regulator_get_voltage

(

const struct device *

dev

)

Get regulator output voltage. Returns the current regulator voltage in microvolts.

Parameters

dev	Regulator to query

Returns

voltage level in uV

regulator_is_supported_voltage()

int regulator_is_supported_voltage	(	const struct device *	dev,
		int	min_uV,
		int	max_uV
	)

Check if a voltage range can be supported.

Parameters

dev	Regulator to check range against.
min_uV	Minimum voltage in microvolts
max_uV	maximum voltage in microvolts

Returns

boolean or negative error code.

regulator_list_voltages()

int regulator_list_voltages	(	const struct device *	dev,
		unsigned int	selector
	)

Return supported voltage Returns a voltage that can be passed to regulator_set_voltage(), zero if the selector code can't be used, or a negative errno.

Parameters

dev	Regulator device to get voltage for.
selector	voltage selector code.

Returns

voltage level in uV, or zero if selector code can't be used.

regulator_set_current_limit()

int regulator_set_current_limit	(	const struct device *	dev,
		int	min_uA,
		int	max_uA
	)

Set regulator output current limit Sets current sink to desired output current.

Parameters

dev	Regulator to set output current level
min_uA	minimum microamps
max_uA	maximum microamps

Returns

0 on success, or errno on error

regulator_set_voltage()

int regulator_set_voltage	(	const struct device *	dev,
		int	min_uV,
		int	max_uV
	)

Set regulator output voltage. Sets a regulator to the closest supported output voltage.

Parameters

dev	Regulator to set voltage
min_uV	Minimum acceptable voltage in microvolts
max_uV	Maximum acceptable voltage in microvolts