root/include/linux/mfd/mcp.h

INCLUDED FROM

DEFINITIONS

1. mcp_priv

   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 
  12 struct mcp_ops;
  13 
  14 struct 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 
  24 struct 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 
  33 void mcp_set_telecom_divisor(struct mcp *, unsigned int);
  34 void mcp_set_audio_divisor(struct mcp *, unsigned int);
  35 void mcp_reg_write(struct mcp *, unsigned int, unsigned int);
  36 unsigned int mcp_reg_read(struct mcp *, unsigned int);
  37 void mcp_enable(struct mcp *);
  38 void mcp_disable(struct mcp *);
  39 #define mcp_get_sclk_rate(mcp)  ((mcp)->sclk_rate)
  40 
  41 struct mcp *mcp_host_alloc(struct device *, size_t);
  42 int mcp_host_add(struct mcp *, void *);
  43 void mcp_host_del(struct mcp *);
  44 void mcp_host_free(struct mcp *);
  45 
  46 struct mcp_driver {
  47         struct device_driver drv;
  48         int (*probe)(struct mcp *);
  49         void (*remove)(struct mcp *);
  50 };
  51 
  52 int mcp_driver_register(struct mcp_driver *);
  53 void 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 
  58 static inline void *mcp_priv(struct mcp *mcp)
  59 {
  60         return mcp + 1;
  61 }
  62 
  63 #endif