mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-12-04 17:44:14 +08:00
c360a6df02
Some regulator consumers would like to make the regulator device keeping a voltage range output when the system entering into suspend states. Making regulator voltage be an array can allow consumers to set voltage for normal state as well as for suspend states through the same code. Signed-off-by: Chunyan Zhang <zhang.chunyan@linaro.org> Signed-off-by: Mark Brown <broonie@kernel.org>
79 lines
1.9 KiB
C
79 lines
1.9 KiB
C
/*
|
|
* internal.h -- Voltage/Current Regulator framework internal code
|
|
*
|
|
* Copyright 2007, 2008 Wolfson Microelectronics PLC.
|
|
* Copyright 2008 SlimLogic Ltd.
|
|
*
|
|
* Author: Liam Girdwood <lrg@slimlogic.co.uk>
|
|
*
|
|
* 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_INTERNAL_H
|
|
#define __REGULATOR_INTERNAL_H
|
|
|
|
#include <linux/suspend.h>
|
|
|
|
#define REGULATOR_STATES_NUM (PM_SUSPEND_MAX + 1)
|
|
|
|
struct regulator_voltage {
|
|
int min_uV;
|
|
int max_uV;
|
|
};
|
|
|
|
/*
|
|
* struct regulator
|
|
*
|
|
* One for each consumer device.
|
|
* @voltage - a voltage array for each state of runtime, i.e.:
|
|
* PM_SUSPEND_ON
|
|
* PM_SUSPEND_TO_IDLE
|
|
* PM_SUSPEND_STANDBY
|
|
* PM_SUSPEND_MEM
|
|
* PM_SUSPEND_MAX
|
|
*/
|
|
struct regulator {
|
|
struct device *dev;
|
|
struct list_head list;
|
|
unsigned int always_on:1;
|
|
unsigned int bypass:1;
|
|
int uA_load;
|
|
struct regulator_voltage voltage[REGULATOR_STATES_NUM];
|
|
const char *supply_name;
|
|
struct device_attribute dev_attr;
|
|
struct regulator_dev *rdev;
|
|
struct dentry *debugfs;
|
|
};
|
|
|
|
#ifdef CONFIG_OF
|
|
struct regulator_init_data *regulator_of_get_init_data(struct device *dev,
|
|
const struct regulator_desc *desc,
|
|
struct regulator_config *config,
|
|
struct device_node **node);
|
|
#else
|
|
static inline struct regulator_init_data *
|
|
regulator_of_get_init_data(struct device *dev,
|
|
const struct regulator_desc *desc,
|
|
struct regulator_config *config,
|
|
struct device_node **node)
|
|
{
|
|
return NULL;
|
|
}
|
|
#endif
|
|
|
|
enum regulator_get_type {
|
|
NORMAL_GET,
|
|
EXCLUSIVE_GET,
|
|
OPTIONAL_GET,
|
|
MAX_GET_TYPE
|
|
};
|
|
|
|
struct regulator *_regulator_get(struct device *dev, const char *id,
|
|
enum regulator_get_type get_type);
|
|
|
|
#endif
|