release/src-rt-6.x.4708/linux/linux-2.6.36/arch/avr32/mach-at32ap/clock.h

   1 /*
   2  * Clock management for AT32AP CPUs
   3  *
   4  * Copyright (C) 2006 Atmel Corporation
   5  *
   6  * Based on arch/arm/mach-at91/clock.c
   7  *   Copyright (C) 2005 David Brownell
   8  *   Copyright (C) 2005 Ivan Kokshaysky
   9  *
  10  * This program is free software; you can redistribute it and/or modify
  11  * it under the terms of the GNU General Public License version 2 as
  12  * published by the Free Software Foundation.
  13  */
  14 #include <linux/clk.h>
  15 #include <linux/list.h>
  16
  17
  18 void at32_clk_register(struct clk *clk);
  19
  20 struct clk {
  21         struct list_head list;          /* linking element */
  22         const char      *name;          /* Clock name/function */
  23         struct device   *dev;           /* Device the clock is used by */
  24         struct clk      *parent;        /* Parent clock, if any */
  25         void            (*mode)(struct clk *clk, int enabled);
  26         unsigned long   (*get_rate)(struct clk *clk);
  27         long            (*set_rate)(struct clk *clk, unsigned long rate,
  28                                     int apply);
  29         int             (*set_parent)(struct clk *clk, struct clk *parent);
  30         u16             users;          /* Enabled if non-zero */
  31         u16             index;          /* Sibling index */
  32 };
  33
  34 unsigned long pba_clk_get_rate(struct clk *clk);
  35 void pba_clk_mode(struct clk *clk, int enabled);