Release 4.12 include/linux/regulator/fixed.h

/*
 * fixed.h
 *
 * Copyright 2008 Wolfson Microelectronics PLC.
 *
 * Author: Mark Brown <broonie@opensource.wolfsonmicro.com>
 *
 * Copyright (c) 2009 Nokia Corporation
 * Roger Quadros <ext-roger.quadros@nokia.com>
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as
 * published by the Free Software Foundation; either version 2 of the
 * License, or (at your option) any later version.
 */

#ifndef __REGULATOR_FIXED_H

#define __REGULATOR_FIXED_H

struct regulator_init_data;

/**
 * struct fixed_voltage_config - fixed_voltage_config structure
 * @supply_name:        Name of the regulator supply
 * @input_supply:       Name of the input regulator supply
 * @microvolts:         Output voltage of regulator
 * @gpio:               GPIO to use for enable control
 *                      set to -EINVAL if not used
 * @startup_delay:      Start-up time in microseconds
 * @gpio_is_open_drain: Gpio pin is open drain or normal type.
 *                      If it is open drain type then HIGH will be set
 *                      through PULL-UP with setting gpio as input
 *                      and low will be set as gpio-output with driven
 *                      to low. For non-open-drain case, the gpio will
 *                      will be in output and drive to low/high accordingly.
 * @enable_high:        Polarity of enable GPIO
 *                      1 = Active high, 0 = Active low
 * @enabled_at_boot:    Whether regulator has been enabled at
 *                      boot or not. 1 = Yes, 0 = No
 *                      This is used to keep the regulator at
 *                      the default state
 * @init_data:          regulator_init_data
 *
 * This structure contains fixed voltage regulator configuration
 * information that must be passed by platform code to the fixed
 * voltage regulator driver.
 */

struct fixed_voltage_config {
	
const char *supply_name;
	
const char *input_supply;
	
int microvolts;
	
int gpio;
	
unsigned startup_delay;
	
unsigned gpio_is_open_drain:1;
	
unsigned enable_high:1;
	
unsigned enabled_at_boot:1;
	
struct regulator_init_data *init_data;
};

struct regulator_consumer_supply;

#if IS_ENABLED(CONFIG_REGULATOR)
struct platform_device *regulator_register_always_on(int id, const char *name,
		struct regulator_consumer_supply *supplies, int num_supplies, int uv);
#else


static inline struct platform_device *regulator_register_always_on(int id, const char *name,
		struct regulator_consumer_supply *supplies, int num_supplies, int uv)
{
	return NULL;
}
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#endif


#define regulator_register_fixed(id, s, ns) regulator_register_always_on(id, \
                                                "fixed-dummy", s, ns, 0)

#endif
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Directory: include/linux/regulator

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