kernel-ark/arch/arm/plat-versatile/clock.c
Russell King 9bf5b2ef67 ARM: Indirect round/set_rate operations through clk structure
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-05-02 09:35:38 +01:00

75 lines
1.5 KiB
C

/*
* linux/arch/arm/plat-versatile/clock.c
*
* 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>
#include <linux/clk.h>
#include <linux/mutex.h>
#include <asm/hardware/icst.h>
#include <mach/clkdev.h>
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)
{
long ret = -EIO;
if (clk->ops && clk->ops->round)
ret = clk->ops->round(clk, rate);
return ret;
}
EXPORT_SYMBOL(clk_round_rate);
int clk_set_rate(struct clk *clk, unsigned long rate)
{
int ret = -EIO;
if (clk->ops && clk->ops->set)
ret = clk->ops->set(clk, rate);
return ret;
}
EXPORT_SYMBOL(clk_set_rate);
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);