LXR linux/arch/arm/mach-nomadik/clock.c

   1/*
   2 *  linux/arch/arm/mach-nomadik/clock.c
   3 *
   4 *  Copyright (C) 2009 Alessandro Rubini
   5 */
   6#include <linux/kernel.h>
   7#include <linux/module.h>
   8#include <linux/errno.h>
   9#include <linux/clk.h>
  10#include <asm/clkdev.h>
  11#include "clock.h"
  12
  13/*
  14 * The nomadik board uses generic clocks, but the serial pl011 file
  15 * calls clk_enable(), clk_disable(), clk_get_rate(), so we provide them
  16 */
  17unsigned long clk_get_rate(struct clk *clk)
  18{
  19        return clk->rate;
  20}
  21EXPORT_SYMBOL(clk_get_rate);
  22
  23/* enable and disable do nothing */
  24int clk_enable(struct clk *clk)
  25{
  26        return 0;
  27}
  28EXPORT_SYMBOL(clk_enable);
  29
  30void clk_disable(struct clk *clk)
  31{
  32}
  33EXPORT_SYMBOL(clk_disable);
  34
  35/* Create a clock structure with the given name */
  36int nmdk_clk_create(struct clk *clk, const char *dev_id)
  37{
  38        struct clk_lookup *clkdev;
  39
  40        clkdev = clkdev_alloc(clk, NULL, dev_id);
  41        if (!clkdev)
  42                return -ENOMEM;
  43        clkdev_add(clkdev);
  44        return 0;
  45}
  46