mcp.h (1647B)
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