115 lines
2.6 KiB
C
115 lines
2.6 KiB
C
/* SPDX-License-Identifier: GPL-2.0-or-later */
|
|
/*
|
|
* 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>
|
|
*/
|
|
|
|
#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;
|
|
unsigned int device_link:1;
|
|
int uA_load;
|
|
unsigned int enable_count;
|
|
unsigned int deferred_disables;
|
|
struct regulator_voltage voltage[REGULATOR_STATES_NUM];
|
|
const char *supply_name;
|
|
struct device_attribute dev_attr;
|
|
struct regulator_dev *rdev;
|
|
struct dentry *debugfs;
|
|
};
|
|
|
|
extern struct class regulator_class;
|
|
|
|
static inline struct regulator_dev *dev_to_rdev(struct device *dev)
|
|
{
|
|
return container_of(dev, struct regulator_dev, dev);
|
|
}
|
|
|
|
#ifdef CONFIG_OF
|
|
struct regulator_dev *of_find_regulator_by_node(struct device_node *np);
|
|
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);
|
|
|
|
struct regulator_dev *of_parse_coupled_regulator(struct regulator_dev *rdev,
|
|
int index);
|
|
|
|
int of_get_n_coupled(struct regulator_dev *rdev);
|
|
|
|
bool of_check_coupling_data(struct regulator_dev *rdev);
|
|
|
|
#else
|
|
static inline struct regulator_dev *
|
|
of_find_regulator_by_node(struct device_node *np)
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
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;
|
|
}
|
|
|
|
static inline struct regulator_dev *
|
|
of_parse_coupled_regulator(struct regulator_dev *rdev,
|
|
int index)
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
static inline int of_get_n_coupled(struct regulator_dev *rdev)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static inline bool of_check_coupling_data(struct regulator_dev *rdev)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
#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
|