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/* SPDX-License-Identifier: GPL-2.0-only */
#ifndef REGMAP_INTERNAL_H_
#define REGMAP_INTERNAL_H_
#include <linux/list.h>
#include <driver.h>
struct regmap_bus;
struct regmap_format {
size_t buf_size;
size_t reg_bytes;
size_t pad_bytes;
size_t val_bytes;
void (*format_write)(struct regmap *map,
unsigned int reg, unsigned int val);
void (*format_reg)(void *buf, unsigned int reg, unsigned int shift);
void (*format_val)(void *buf, unsigned int val, unsigned int shift);
unsigned int (*parse_val)(const void *buf);
};
struct regmap {
struct device *dev;
const struct regmap_bus *bus;
const char *name;
void *bus_context;
struct list_head list;
int reg_stride;
void *work_buf; /* Scratch buffer used to format I/O */
struct regmap_format format;
unsigned int read_flag_mask;
unsigned int write_flag_mask;
int reg_shift;
unsigned int max_register;
struct cdev cdev;
int (*reg_read)(void *context, unsigned int reg,
unsigned int *val);
int (*reg_write)(void *context, unsigned int reg,
unsigned int val);
};
enum regmap_endian regmap_get_val_endian(struct device *dev,
const struct regmap_bus *bus,
const struct regmap_config *config);
#ifdef CONFIG_REGMAP_FORMATTED
int regmap_formatted_init(struct regmap *map, const struct regmap_config *);
#else
static inline int regmap_formatted_init(struct regmap *map, const struct regmap_config *cfg)
{
return -ENOSYS;
}
#endif
#endif
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