LXR linux/include/linux/regulator/fixed.h

   1/* SPDX-License-Identifier: GPL-2.0-or-later */
   2/*
   3 * fixed.h
   4 *
   5 * Copyright 2008 Wolfson Microelectronics PLC.
   6 *
   7 * Author: Mark Brown <broonie@opensource.wolfsonmicro.com>
   8 *
   9 * Copyright (c) 2009 Nokia Corporation
  10 * Roger Quadros <ext-roger.quadros@nokia.com>
  11 */
  12
  13#ifndef __REGULATOR_FIXED_H
  14#define __REGULATOR_FIXED_H
  15
  16struct regulator_init_data;
  17
  18/**
  19 * struct fixed_voltage_config - fixed_voltage_config structure
  20 * @supply_name:        Name of the regulator supply
  21 * @input_supply:       Name of the input regulator supply
  22 * @microvolts:         Output voltage of regulator
  23 * @startup_delay:      Start-up time in microseconds
  24 * @enabled_at_boot:    Whether regulator has been enabled at
  25 *                      boot or not. 1 = Yes, 0 = No
  26 *                      This is used to keep the regulator at
  27 *                      the default state
  28 * @init_data:          regulator_init_data
  29 *
  30 * This structure contains fixed voltage regulator configuration
  31 * information that must be passed by platform code to the fixed
  32 * voltage regulator driver.
  33 */
  34struct fixed_voltage_config {
  35        const char *supply_name;
  36        const char *input_supply;
  37        int microvolts;
  38        unsigned startup_delay;
  39        unsigned int off_on_delay;
  40        unsigned enabled_at_boot:1;
  41        struct regulator_init_data *init_data;
  42};
  43
  44struct regulator_consumer_supply;
  45
  46#if IS_ENABLED(CONFIG_REGULATOR)
  47struct platform_device *regulator_register_always_on(int id, const char *name,
  48                struct regulator_consumer_supply *supplies, int num_supplies, int uv);
  49#else
  50static inline struct platform_device *regulator_register_always_on(int id, const char *name,
  51                struct regulator_consumer_supply *supplies, int num_supplies, int uv)
  52{
  53        return NULL;
  54}
  55#endif
  56
  57#define regulator_register_fixed(id, s, ns) regulator_register_always_on(id, \
  58                                                "fixed-dummy", s, ns, 0)
  59
  60#endif
  61