release/src-rt-6.x.4708/linux/linux-2.6.36/arch/arm/mach-u300/clock.h

   1 /*
   2  * arch/arm/mach-u300/include/mach/clock.h
   3  *
   4  * Copyright (C) 2004 - 2005 Nokia corporation
   5  * Written by Tuukka Tikkanen <tuukka.tikkanen@elektrobit.com>
   6  * Based on clocks.h by Tony Lindgren, Gordon McNutt and RidgeRun, Inc
   7  * Copyright (C) 2007-2009 ST-Ericsson AB
   8  * Adopted to ST-Ericsson U300 platforms by
   9  * Jonas Aaberg <jonas.aberg@stericsson.com>
  10  *
  11  * This program is free software; you can redistribute it and/or modify
  12  * it under the terms of the GNU General Public License version 2 as
  13  * published by the Free Software Foundation.
  14  *
  15  */
  16
  17 #ifndef __MACH_CLOCK_H
  18 #define __MACH_CLOCK_H
  19
  20 #include <linux/clk.h>
  21
  22 struct clk {
  23         struct list_head node;
  24         struct module *owner;
  25         struct device *dev;
  26         const char *name;
  27         struct clk *parent;
  28
  29         spinlock_t lock;
  30         unsigned long rate;
  31         bool reset;
  32         __u16 clk_val;
  33         __s8 usecount;
  34         __u32 res_reg;
  35         __u16 res_mask;
  36
  37         bool hw_ctrld;
  38
  39         void (*recalc) (struct clk *);
  40         int (*set_rate) (struct clk *, unsigned long);
  41         unsigned long (*get_rate) (struct clk *);
  42         unsigned long (*round_rate) (struct clk *, unsigned long);
  43         void (*init) (struct clk *);
  44         void (*enable) (struct clk *);
  45         void (*disable) (struct clk *);
  46 };
  47
  48 int u300_clock_init(void);
  49
  50 #endif