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[ARM] aaec2000: convert to simple clk API

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aaec2000 only uses the clk API for the framebuffer, so there's
no point having a complicated implementation.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Russell King 2008-11-30 17:27:20 +00:00 committed by Russell King
parent eefc842a6e
commit 4ab08ecfbc
4 changed files with 24 additions and 129 deletions
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2
arch/arm/mach-aaec2000/Makefile
View file

@ -3,7 +3,7 @@
#
# Common support (must be linked before board specific support)
obj-y += core.o clock.o
obj-y += core.o
# Specific board support
obj-$(CONFIG_MACH_AAED2000) += aaed2000.o

99
arch/arm/mach-aaec2000/clock.c
View file

@ -1,99 +0,0 @@
/*
* linux/arch/arm/mach-aaec2000/clock.c
*
* Copyright (C) 2005 Nicolas Bellido Y Ortega
*
* Based on linux/arch/arm/mach-integrator/clock.c
*
* 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/list.h>
#include <linux/errno.h>
#include <linux/err.h>
#include <linux/string.h>
#include <linux/clk.h>
#include <linux/mutex.h>
#include "clock.h"
static LIST_HEAD(clocks);
static DEFINE_MUTEX(clocks_mutex);
struct clk *clk_get(struct device *dev, const char *id)
{
struct clk *p, *clk = ERR_PTR(-ENOENT);
mutex_lock(&clocks_mutex);
list_for_each_entry(p, &clocks, node) {
if (strcmp(id, p->name) == 0 && try_module_get(p->owner)) {
clk = p;
break;
}
}
mutex_unlock(&clocks_mutex);
return clk;
}
EXPORT_SYMBOL(clk_get);
void clk_put(struct clk *clk)
{
module_put(clk->owner);
}
EXPORT_SYMBOL(clk_put);
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)
{
return rate;
}
EXPORT_SYMBOL(clk_round_rate);
int clk_set_rate(struct clk *clk, unsigned long rate)
{
return 0;
}
EXPORT_SYMBOL(clk_set_rate);
int clk_register(struct clk *clk)
{
mutex_lock(&clocks_mutex);
list_add(&clk->node, &clocks);
mutex_unlock(&clocks_mutex);
return 0;
}
EXPORT_SYMBOL(clk_register);
void clk_unregister(struct clk *clk)
{
mutex_lock(&clocks_mutex);
list_del(&clk->node);
mutex_unlock(&clocks_mutex);
}
EXPORT_SYMBOL(clk_unregister);
static int __init clk_init(void)
{
return 0;
}
arch_initcall(clk_init);

23
arch/arm/mach-aaec2000/clock.h
View file

@ -1,23 +0,0 @@
/*
* linux/arch/arm/mach-aaec2000/clock.h
*
* Copyright (C) 2005 Nicolas Bellido Y Ortega
*
* Based on linux/arch/arm/mach-integrator/clock.h
*
* 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.
*/
struct module;
struct clk {
struct list_head node;
unsigned long rate;
struct module *owner;
const char *name;
void *data;
};
int clk_register(struct clk *clk);
void clk_unregister(struct clk *clk);

29
arch/arm/mach-aaec2000/core.c
View file

@ -19,6 +19,7 @@
#include <linux/interrupt.h>
#include <linux/timex.h>
#include <linux/signal.h>
#include <linux/clk.h>
#include <mach/hardware.h>
#include <asm/irq.h>
@ -30,7 +31,6 @@
#include <asm/mach/map.h>
#include "core.h"
#include "clock.h"
/*
* Common I/O mapping:
@ -229,9 +229,28 @@ static struct amba_device *amba_devs[] __initdata = {
&clcd_device,
};
static struct clk aaec2000_clcd_clk = {
.name = "CLCDCLK",
};
void clk_disable(struct clk *clk)
{
}
int clk_set_rate(struct clk *clk, unsigned long rate)
{
return 0;
}
int clk_enable(struct clk *clk)
{
return 0;
}
struct clk *clk_get(struct device *dev, const char *id)
{
return dev && strcmp(dev_name(dev), "mb:16") == 0 ? NULL : ERR_PTR(-ENOENT);
}
void clk_put(struct clk *clk)
{
}
void __init aaec2000_set_clcd_plat_data(struct aaec2000_clcd_info *clcd)
{
@ -265,8 +284,6 @@ static int __init aaec2000_init(void)
{
int i;
clk_register(&aaec2000_clcd_clk);
for (i = 0; i < ARRAY_SIZE(amba_devs); i++) {
struct amba_device *d = amba_devs[i];
amba_device_register(d, &iomem_resource);