38 lines
986 B
C
38 lines
986 B
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
/*
|
|
* Copyright (c) 2021 MediaTek Inc.
|
|
* Author: Gene Chen <gene_chen@richtek.com>
|
|
*/
|
|
|
|
#ifndef _EXTDEV_IO_CLASS_H
|
|
#define _EXTDEV_IO_CLASS_H
|
|
|
|
#include <linux/regmap.h>
|
|
|
|
struct extdev_desc {
|
|
const char *dirname;
|
|
const char *devname;
|
|
const char *typestr;
|
|
int (*io_read)(void *drvdata, u16 reg, void *val, u16 size);
|
|
int (*io_write)(void *drvdata, u16 reg, const void *val, u16 size);
|
|
struct regmap *rmap;
|
|
};
|
|
|
|
struct extdev_io_device {
|
|
struct device *dev;
|
|
struct mutex io_lock;
|
|
struct extdev_desc *desc;
|
|
u16 reg;
|
|
u16 size;
|
|
bool access_lock;
|
|
void *data_buffer;
|
|
u16 data_buffer_size;
|
|
};
|
|
|
|
extern struct extdev_io_device * extdev_io_device_register(struct device *parent,
|
|
struct extdev_desc *desc);
|
|
extern void extdev_io_device_unregister(struct extdev_io_device *extdev);
|
|
extern struct extdev_io_device * devm_extdev_io_device_register(struct device *parent,
|
|
struct extdev_desc *desc);
|
|
|
|
#endif /* _EXTDEV_IO_CLASS_H */
|