1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0-only */
2*4882a593Smuzhiyun /*
3*4882a593Smuzhiyun * linux/drivers/mfd/mcp.h
4*4882a593Smuzhiyun *
5*4882a593Smuzhiyun * Copyright (C) 2001 Russell King, All Rights Reserved.
6*4882a593Smuzhiyun */
7*4882a593Smuzhiyun #ifndef MCP_H
8*4882a593Smuzhiyun #define MCP_H
9*4882a593Smuzhiyun
10*4882a593Smuzhiyun #include <linux/device.h>
11*4882a593Smuzhiyun
12*4882a593Smuzhiyun struct mcp_ops;
13*4882a593Smuzhiyun
14*4882a593Smuzhiyun struct mcp {
15*4882a593Smuzhiyun struct module *owner;
16*4882a593Smuzhiyun struct mcp_ops *ops;
17*4882a593Smuzhiyun spinlock_t lock;
18*4882a593Smuzhiyun int use_count;
19*4882a593Smuzhiyun unsigned int sclk_rate;
20*4882a593Smuzhiyun unsigned int rw_timeout;
21*4882a593Smuzhiyun struct device attached_device;
22*4882a593Smuzhiyun };
23*4882a593Smuzhiyun
24*4882a593Smuzhiyun struct mcp_ops {
25*4882a593Smuzhiyun void (*set_telecom_divisor)(struct mcp *, unsigned int);
26*4882a593Smuzhiyun void (*set_audio_divisor)(struct mcp *, unsigned int);
27*4882a593Smuzhiyun void (*reg_write)(struct mcp *, unsigned int, unsigned int);
28*4882a593Smuzhiyun unsigned int (*reg_read)(struct mcp *, unsigned int);
29*4882a593Smuzhiyun void (*enable)(struct mcp *);
30*4882a593Smuzhiyun void (*disable)(struct mcp *);
31*4882a593Smuzhiyun };
32*4882a593Smuzhiyun
33*4882a593Smuzhiyun void mcp_set_telecom_divisor(struct mcp *, unsigned int);
34*4882a593Smuzhiyun void mcp_set_audio_divisor(struct mcp *, unsigned int);
35*4882a593Smuzhiyun void mcp_reg_write(struct mcp *, unsigned int, unsigned int);
36*4882a593Smuzhiyun unsigned int mcp_reg_read(struct mcp *, unsigned int);
37*4882a593Smuzhiyun void mcp_enable(struct mcp *);
38*4882a593Smuzhiyun void mcp_disable(struct mcp *);
39*4882a593Smuzhiyun #define mcp_get_sclk_rate(mcp) ((mcp)->sclk_rate)
40*4882a593Smuzhiyun
41*4882a593Smuzhiyun struct mcp *mcp_host_alloc(struct device *, size_t);
42*4882a593Smuzhiyun int mcp_host_add(struct mcp *, void *);
43*4882a593Smuzhiyun void mcp_host_del(struct mcp *);
44*4882a593Smuzhiyun void mcp_host_free(struct mcp *);
45*4882a593Smuzhiyun
46*4882a593Smuzhiyun struct mcp_driver {
47*4882a593Smuzhiyun struct device_driver drv;
48*4882a593Smuzhiyun int (*probe)(struct mcp *);
49*4882a593Smuzhiyun void (*remove)(struct mcp *);
50*4882a593Smuzhiyun };
51*4882a593Smuzhiyun
52*4882a593Smuzhiyun int mcp_driver_register(struct mcp_driver *);
53*4882a593Smuzhiyun void mcp_driver_unregister(struct mcp_driver *);
54*4882a593Smuzhiyun
55*4882a593Smuzhiyun #define mcp_get_drvdata(mcp) dev_get_drvdata(&(mcp)->attached_device)
56*4882a593Smuzhiyun #define mcp_set_drvdata(mcp,d) dev_set_drvdata(&(mcp)->attached_device, d)
57*4882a593Smuzhiyun
mcp_priv(struct mcp * mcp)58*4882a593Smuzhiyun static inline void *mcp_priv(struct mcp *mcp)
59*4882a593Smuzhiyun {
60*4882a593Smuzhiyun return mcp + 1;
61*4882a593Smuzhiyun }
62*4882a593Smuzhiyun
63*4882a593Smuzhiyun #endif
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