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

46 lines
906 B
C

/*
* linux/arch/arm/mach-nomadik/clock.c
*
* Copyright (C) 2009 Alessandro Rubini
*/
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/errno.h>
#include <linux/clk.h>
#include <asm/clkdev.h>
#include "clock.h"
/*
* The nomadik board uses generic clocks, but the serial pl011 file
* calls clk_enable(), clk_disable(), clk_get_rate(), so we provide them
*/
unsigned long clk_get_rate(struct clk *clk)
{
return clk->rate;
}
EXPORT_SYMBOL(clk_get_rate);
/* enable and disable do nothing */
int clk_enable(struct clk *clk)
{
return 0;
}
EXPORT_SYMBOL(clk_enable);
void clk_disable(struct clk *clk)
{
}
EXPORT_SYMBOL(clk_disable);
/* Create a clock structure with the given name */
int nmdk_clk_create(struct clk *clk, const char *dev_id)
{
struct clk_lookup *clkdev;
clkdev = clkdev_alloc(clk, NULL, dev_id);
if (!clkdev)
return -ENOMEM;
clkdev_add(clkdev);
return 0;
}