1/* SPDX-License-Identifier: GPL-2.0-only */
2/*
3 *  linux/drivers/mfd/mcp.h
4 *
5 *  Copyright (C) 2001 Russell King, All Rights Reserved.
6 */
7#ifndef MCP_H
8#define MCP_H
9
10#include <linux/device.h>
11
12struct mcp_ops;
13
14struct mcp {
15	struct module	*owner;
16	struct mcp_ops	*ops;
17	spinlock_t	lock;
18	int		use_count;
19	unsigned int	sclk_rate;
20	unsigned int	rw_timeout;
21	struct device	attached_device;
22};
23
24struct mcp_ops {
25	void		(*set_telecom_divisor)(struct mcp *, unsigned int);
26	void		(*set_audio_divisor)(struct mcp *, unsigned int);
27	void		(*reg_write)(struct mcp *, unsigned int, unsigned int);
28	unsigned int	(*reg_read)(struct mcp *, unsigned int);
29	void		(*enable)(struct mcp *);
30	void		(*disable)(struct mcp *);
31};
32
33void mcp_set_telecom_divisor(struct mcp *, unsigned int);
34void mcp_set_audio_divisor(struct mcp *, unsigned int);
35void mcp_reg_write(struct mcp *, unsigned int, unsigned int);
36unsigned int mcp_reg_read(struct mcp *, unsigned int);
37void mcp_enable(struct mcp *);
38void mcp_disable(struct mcp *);
39#define mcp_get_sclk_rate(mcp)	((mcp)->sclk_rate)
40
41struct mcp *mcp_host_alloc(struct device *, size_t);
42int mcp_host_add(struct mcp *, void *);
43void mcp_host_del(struct mcp *);
44void mcp_host_free(struct mcp *);
45
46struct mcp_driver {
47	struct device_driver drv;
48	int (*probe)(struct mcp *);
49	void (*remove)(struct mcp *);
50};
51
52int mcp_driver_register(struct mcp_driver *);
53void mcp_driver_unregister(struct mcp_driver *);
54
55#define mcp_get_drvdata(mcp)	dev_get_drvdata(&(mcp)->attached_device)
56#define mcp_set_drvdata(mcp,d)	dev_set_drvdata(&(mcp)->attached_device, d)
57
58static inline void *mcp_priv(struct mcp *mcp)
59{
60	return mcp + 1;
61}
62
63#endif
64