LXR linux/arch/arm/mach-lpc32xx/clock.h

   1/*
   2 * arch/arm/mach-lpc32xx/clock.h
   3 *
   4 * Author: Kevin Wells <kevin.wells@nxp.com>
   5 *
   6 * Copyright (C) 2010 NXP Semiconductors
   7 *
   8 * This program is free software; you can redistribute it and/or modify
   9 * it under the terms of the GNU General Public License as published by
  10 * the Free Software Foundation; either version 2 of the License, or
  11 * (at your option) any later version.
  12 *
  13 * This program is distributed in the hope that it will be useful,
  14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16 * GNU General Public License for more details.
  17 */
  18
  19#ifndef __LPC32XX_CLOCK_H
  20#define __LPC32XX_CLOCK_H
  21
  22struct clk {
  23        struct list_head node;
  24        struct clk *parent;
  25        u32 rate;
  26        u32 usecount;
  27
  28        int (*set_rate) (struct clk *, unsigned long);
  29        unsigned long (*round_rate) (struct clk *, unsigned long);
  30        unsigned long (*get_rate) (struct clk *clk);
  31        int (*enable) (struct clk *, int);
  32
  33        /* Register address and bit mask for simple clocks */
  34        void __iomem *enable_reg;
  35        u32 enable_mask;
  36};
  37
  38#endif
  39