4 * Copyright 2008 Wolfson Microelectronics PLC.
6 * Author: Mark Brown <broonie@opensource.wolfsonmicro.com>
8 * Copyright (c) 2009 Nokia Corporation
9 * Roger Quadros <ext-roger.quadros@nokia.com>
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.
17 #ifndef __REGULATOR_FIXED_H
18 #define __REGULATOR_FIXED_H
20 struct regulator_init_data
;
23 * struct fixed_voltage_config - fixed_voltage_config structure
24 * @supply_name: Name of the regulator supply
25 * @microvolts: Output voltage of regulator
26 * @gpio: GPIO to use for enable control
27 * set to -EINVAL if not used
28 * @startup_delay: Start-up time in microseconds
29 * @gpio_is_open_drain: Gpio pin is open drain or normal type.
30 * If it is open drain type then HIGH will be set
31 * through PULL-UP with setting gpio as input
32 * and low will be set as gpio-output with driven
33 * to low. For non-open-drain case, the gpio will
34 * will be in output and drive to low/high accordingly.
35 * @enable_high: Polarity of enable GPIO
36 * 1 = Active high, 0 = Active low
37 * @enabled_at_boot: Whether regulator has been enabled at
38 * boot or not. 1 = Yes, 0 = No
39 * This is used to keep the regulator at
41 * @init_data: regulator_init_data
43 * This structure contains fixed voltage regulator configuration
44 * information that must be passed by platform code to the fixed
45 * voltage regulator driver.
47 struct fixed_voltage_config
{
48 const char *supply_name
;
51 unsigned startup_delay
;
52 unsigned gpio_is_open_drain
:1;
53 unsigned enable_high
:1;
54 unsigned enabled_at_boot
:1;
55 struct regulator_init_data
*init_data
;
58 struct regulator_consumer_supply
;
60 #if IS_ENABLED(CONFIG_REGULATOR)
61 struct platform_device
*regulator_register_always_on(int id
, const char *name
,
62 struct regulator_consumer_supply
*supplies
, int num_supplies
, int uv
);
64 static inline struct platform_device
*regulator_register_always_on(int id
, const char *name
,
65 struct regulator_consumer_supply
*supplies
, int num_supplies
, int uv
)
71 #define regulator_register_fixed(id, s, ns) regulator_register_always_on(id, \
72 "fixed-dummy", s, ns, 0)