include/linux/regulator/fixed.h

   1 /*
   2  * fixed.h
   3  *
   4  * Copyright 2008 Wolfson Microelectronics PLC.
   5  *
   6  * Author: Mark Brown <broonie@opensource.wolfsonmicro.com>
   7  *
   8  * Copyright (c) 2009 Nokia Corporation
   9  * Roger Quadros <ext-roger.quadros@nokia.com>
  10  *
  11  * This program is free software; you can redistribute it and/or
  12  * modify it under the terms of the GNU General Public License as
  13  * published by the Free Software Foundation; either version 2 of the
  14  * License, or (at your option) any later version.
  15  */
  16
  17 #ifndef __REGULATOR_FIXED_H
  18 #define __REGULATOR_FIXED_H
  19
  20 struct regulator_init_data;
  21
  22 /**
  23  * struct fixed_voltage_config - fixed_voltage_config structure
  24  * @supply_name:        Name of the regulator supply
  25  * @input_supply:       Name of the input regulator supply
  26  * @microvolts:         Output voltage of regulator
  27  * @startup_delay:      Start-up time in microseconds
  28  * @enabled_at_boot:    Whether regulator has been enabled at
  29  *                      boot or not. 1 = Yes, 0 = No
  30  *                      This is used to keep the regulator at
  31  *                      the default state
  32  * @init_data:          regulator_init_data
  33  *
  34  * This structure contains fixed voltage regulator configuration
  35  * information that must be passed by platform code to the fixed
  36  * voltage regulator driver.
  37  */
  38 struct fixed_voltage_config {
  39         const char *supply_name;
  40         const char *input_supply;
  41         int microvolts;
  42         unsigned startup_delay;
  43         unsigned enabled_at_boot:1;
  44         struct regulator_init_data *init_data;
  45 };
  46
  47 struct regulator_consumer_supply;
  48
  49 #if IS_ENABLED(CONFIG_REGULATOR)
  50 struct platform_device *regulator_register_always_on(int id, const char *name,
  51                 struct regulator_consumer_supply *supplies, int num_supplies, int uv);
  52 #else
  53 static inline struct platform_device *regulator_register_always_on(int id, const char *name,
  54                 struct regulator_consumer_supply *supplies, int num_supplies, int uv)
  55 {
  56         return NULL;
  57 }
  58 #endif
  59
  60 #define regulator_register_fixed(id, s, ns) regulator_register_always_on(id, \
  61                                                 "fixed-dummy", s, ns, 0)
  62
  63 #endif