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yaml
---
r: 54370
b: refs/heads/master
c: db62e5b
h: refs/heads/master
v: v3
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Paul Mundt authored and Paul Mundt committed May 7, 2007
1 parent aaf0d7f commit 5243c5e
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Showing 4 changed files with 47 additions and 35 deletions.
2 changes: 1 addition & 1 deletion [refs]
Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: 2a8ff4596cde3ec2a51980288ebb28a0d196d19a
refs/heads/master: db62e5bd297d1f325811c5495ad23de36db0fdd4
76 changes: 45 additions & 31 deletions trunk/arch/sh/kernel/cpu/clock.c
Original file line number Diff line number Diff line change
@@ -1,7 +1,7 @@
/*
* arch/sh/kernel/cpu/clock.c - SuperH clock framework
*
* Copyright (C) 2005, 2006 Paul Mundt
* Copyright (C) 2005, 2006, 2007 Paul Mundt
*
* This clock framework is derived from the OMAP version by:
*
Expand All @@ -23,6 +23,7 @@
#include <linux/seq_file.h>
#include <linux/err.h>
#include <linux/platform_device.h>
#include <linux/proc_fs.h>
#include <asm/clock.h>
#include <asm/timer.h>

Expand Down Expand Up @@ -108,6 +109,7 @@ int __clk_enable(struct clk *clk)

return 0;
}
EXPORT_SYMBOL_GPL(__clk_enable);

int clk_enable(struct clk *clk)
{
Expand All @@ -120,6 +122,7 @@ int clk_enable(struct clk *clk)

return ret;
}
EXPORT_SYMBOL_GPL(clk_enable);

static void clk_kref_release(struct kref *kref)
{
Expand All @@ -138,6 +141,7 @@ void __clk_disable(struct clk *clk)
clk->ops->disable(clk);
}
}
EXPORT_SYMBOL_GPL(__clk_disable);

void clk_disable(struct clk *clk)
{
Expand All @@ -147,6 +151,7 @@ void clk_disable(struct clk *clk)
__clk_disable(clk);
spin_unlock_irqrestore(&clock_lock, flags);
}
EXPORT_SYMBOL_GPL(clk_disable);

int clk_register(struct clk *clk)
{
Expand All @@ -168,23 +173,27 @@ int clk_register(struct clk *clk)

return 0;
}
EXPORT_SYMBOL_GPL(clk_register);

void clk_unregister(struct clk *clk)
{
mutex_lock(&clock_list_sem);
list_del(&clk->node);
mutex_unlock(&clock_list_sem);
}
EXPORT_SYMBOL_GPL(clk_unregister);

inline unsigned long clk_get_rate(struct clk *clk)
unsigned long clk_get_rate(struct clk *clk)
{
return clk->rate;
}
EXPORT_SYMBOL_GPL(clk_get_rate);

int clk_set_rate(struct clk *clk, unsigned long rate)
{
return clk_set_rate_ex(clk, rate, 0);
}
EXPORT_SYMBOL_GPL(clk_set_rate);

int clk_set_rate_ex(struct clk *clk, unsigned long rate, int algo_id)
{
Expand All @@ -203,6 +212,7 @@ int clk_set_rate_ex(struct clk *clk, unsigned long rate, int algo_id)

return ret;
}
EXPORT_SYMBOL_GPL(clk_set_rate_ex);

void clk_recalc_rate(struct clk *clk)
{
Expand All @@ -217,6 +227,7 @@ void clk_recalc_rate(struct clk *clk)
if (unlikely(clk->flags & CLK_RATE_PROPAGATES))
propagate_rate(clk);
}
EXPORT_SYMBOL_GPL(clk_recalc_rate);

/*
* Returns a clock. Note that we first try to use device id on the bus
Expand Down Expand Up @@ -253,18 +264,43 @@ struct clk *clk_get(struct device *dev, const char *id)

return clk;
}
EXPORT_SYMBOL_GPL(clk_get);

void clk_put(struct clk *clk)
{
if (clk && !IS_ERR(clk))
module_put(clk->owner);
}
EXPORT_SYMBOL_GPL(clk_put);

void __init __attribute__ ((weak))
arch_init_clk_ops(struct clk_ops **ops, int type)
{
}

static int show_clocks(char *buf, char **start, off_t off,
int len, int *eof, void *data)
{
struct clk *clk;
char *p = buf;

list_for_each_entry_reverse(clk, &clock_list, node) {
unsigned long rate = clk_get_rate(clk);

/*
* Don't bother listing dummy clocks with no ancestry
* that only support enable and disable ops.
*/
if (unlikely(!rate && !clk->parent))
continue;

p += sprintf(p, "%-12s\t: %ld.%02ldMHz\n", clk->name,
rate / 1000000, (rate % 1000000) / 10000);
}

return p - buf;
}

int __init clk_init(void)
{
int i, ret = 0;
Expand All @@ -285,36 +321,14 @@ int __init clk_init(void)
return ret;
}

int show_clocks(struct seq_file *m)
static int __init clk_proc_init(void)
{
struct clk *clk;

list_for_each_entry_reverse(clk, &clock_list, node) {
unsigned long rate = clk_get_rate(clk);

/*
* Don't bother listing dummy clocks with no ancestry
* that only support enable and disable ops.
*/
if (unlikely(!rate && !clk->parent))
continue;

seq_printf(m, "%-12s\t: %ld.%02ldMHz\n", clk->name,
rate / 1000000, (rate % 1000000) / 10000);
}
struct proc_dir_entry *p;
p = create_proc_read_entry("clocks", S_IRUSR, NULL,
show_clocks, NULL);
if (unlikely(!p))
return -EINVAL;

return 0;
}

EXPORT_SYMBOL_GPL(clk_register);
EXPORT_SYMBOL_GPL(clk_unregister);
EXPORT_SYMBOL_GPL(clk_get);
EXPORT_SYMBOL_GPL(clk_put);
EXPORT_SYMBOL_GPL(clk_enable);
EXPORT_SYMBOL_GPL(clk_disable);
EXPORT_SYMBOL_GPL(__clk_enable);
EXPORT_SYMBOL_GPL(__clk_disable);
EXPORT_SYMBOL_GPL(clk_get_rate);
EXPORT_SYMBOL_GPL(clk_set_rate);
EXPORT_SYMBOL_GPL(clk_recalc_rate);
EXPORT_SYMBOL_GPL(clk_set_rate_ex);
subsys_initcall(clk_proc_init);
2 changes: 1 addition & 1 deletion trunk/arch/sh/kernel/setup.c
Original file line number Diff line number Diff line change
Expand Up @@ -501,7 +501,7 @@ static int show_cpuinfo(struct seq_file *m, void *v)
c->loops_per_jiffy/(500000/HZ),
(c->loops_per_jiffy/(5000/HZ)) % 100);

return show_clocks(m);
return 0;
}

static void *c_start(struct seq_file *m, loff_t *pos)
Expand Down
2 changes: 0 additions & 2 deletions trunk/include/asm-sh/clock.h
Original file line number Diff line number Diff line change
Expand Up @@ -48,8 +48,6 @@ void clk_recalc_rate(struct clk *);
int clk_register(struct clk *);
void clk_unregister(struct clk *);

int show_clocks(struct seq_file *m);

/* the exported API, in addition to clk_set_rate */
/**
* clk_set_rate_ex - set the clock rate for a clock source, with additional parameter
Expand Down

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