2005-04-17 05:20:36 +07:00
|
|
|
/*
|
2010-01-14 19:48:06 +07:00
|
|
|
* linux/arch/arm/plat-versatile/clock.c
|
2005-04-17 05:20:36 +07:00
|
|
|
*
|
|
|
|
* Copyright (C) 2004 ARM Limited.
|
|
|
|
* Written by Deep Blue Solutions Limited.
|
|
|
|
*
|
|
|
|
* This program is free software; you can redistribute it and/or modify
|
|
|
|
* it under the terms of the GNU General Public License version 2 as
|
|
|
|
* published by the Free Software Foundation.
|
|
|
|
*/
|
|
|
|
#include <linux/module.h>
|
|
|
|
#include <linux/kernel.h>
|
|
|
|
#include <linux/errno.h>
|
2006-01-07 23:15:52 +07:00
|
|
|
#include <linux/clk.h>
|
2006-01-13 01:42:23 +07:00
|
|
|
#include <linux/mutex.h>
|
2005-04-17 05:20:36 +07:00
|
|
|
|
2010-01-17 03:16:10 +07:00
|
|
|
#include <asm/hardware/icst.h>
|
2010-01-14 19:48:06 +07:00
|
|
|
|
2008-11-09 03:08:08 +07:00
|
|
|
#include <mach/clkdev.h>
|
2005-04-17 05:20:36 +07:00
|
|
|
|
|
|
|
int clk_enable(struct clk *clk)
|
|
|
|
{
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
EXPORT_SYMBOL(clk_enable);
|
|
|
|
|
|
|
|
void clk_disable(struct clk *clk)
|
|
|
|
{
|
|
|
|
}
|
|
|
|
EXPORT_SYMBOL(clk_disable);
|
|
|
|
|
|
|
|
unsigned long clk_get_rate(struct clk *clk)
|
|
|
|
{
|
|
|
|
return clk->rate;
|
|
|
|
}
|
|
|
|
EXPORT_SYMBOL(clk_get_rate);
|
|
|
|
|
|
|
|
long clk_round_rate(struct clk *clk, unsigned long rate)
|
|
|
|
{
|
2010-03-01 23:18:39 +07:00
|
|
|
long ret = -EIO;
|
|
|
|
if (clk->ops && clk->ops->round)
|
|
|
|
ret = clk->ops->round(clk, rate);
|
|
|
|
return ret;
|
2005-04-17 05:20:36 +07:00
|
|
|
}
|
|
|
|
EXPORT_SYMBOL(clk_round_rate);
|
|
|
|
|
|
|
|
int clk_set_rate(struct clk *clk, unsigned long rate)
|
|
|
|
{
|
|
|
|
int ret = -EIO;
|
2010-03-01 23:18:39 +07:00
|
|
|
if (clk->ops && clk->ops->set)
|
|
|
|
ret = clk->ops->set(clk, rate);
|
2008-11-09 03:08:08 +07:00
|
|
|
return ret;
|
2005-04-17 05:20:36 +07:00
|
|
|
}
|
|
|
|
EXPORT_SYMBOL(clk_set_rate);
|
2010-03-01 23:18:39 +07:00
|
|
|
|
|
|
|
long icst_clk_round(struct clk *clk, unsigned long rate)
|
|
|
|
{
|
|
|
|
struct icst_vco vco;
|
|
|
|
vco = icst_hz_to_vco(clk->params, rate);
|
|
|
|
return icst_hz(clk->params, vco);
|
|
|
|
}
|
|
|
|
EXPORT_SYMBOL(icst_clk_round);
|
|
|
|
|
|
|
|
int icst_clk_set(struct clk *clk, unsigned long rate)
|
|
|
|
{
|
|
|
|
struct icst_vco vco;
|
|
|
|
|
|
|
|
vco = icst_hz_to_vco(clk->params, rate);
|
|
|
|
clk->rate = icst_hz(clk->params, vco);
|
|
|
|
clk->ops->setvco(clk, vco);
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
EXPORT_SYMBOL(icst_clk_set);
|