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Diffstat (limited to 'arch/arm/mach-ns9xxx/clock.c')
-rw-r--r--arch/arm/mach-ns9xxx/clock.c215
1 files changed, 0 insertions, 215 deletions
diff --git a/arch/arm/mach-ns9xxx/clock.c b/arch/arm/mach-ns9xxx/clock.c
deleted file mode 100644
index cf81cbc57544..000000000000
--- a/arch/arm/mach-ns9xxx/clock.c
+++ /dev/null
@@ -1,215 +0,0 @@
-/*
- * arch/arm/mach-ns9xxx/clock.c
- *
- * Copyright (C) 2007 by Digi International Inc.
- * All rights reserved.
- *
- * 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/err.h>
-#include <linux/module.h>
-#include <linux/list.h>
-#include <linux/clk.h>
-#include <linux/string.h>
-#include <linux/platform_device.h>
-#include <linux/semaphore.h>
-
-#include "clock.h"
-
-static LIST_HEAD(clocks);
-static DEFINE_SPINLOCK(clk_lock);
-
-struct clk *clk_get(struct device *dev, const char *id)
-{
- struct clk *p, *ret = NULL, *retgen = NULL;
- unsigned long flags;
- int idno;
-
- if (dev == NULL || dev->bus != &platform_bus_type)
- idno = -1;
- else
- idno = to_platform_device(dev)->id;
-
- spin_lock_irqsave(&clk_lock, flags);
- list_for_each_entry(p, &clocks, node) {
- if (strcmp(id, p->name) == 0) {
- if (p->id == idno) {
- if (!try_module_get(p->owner))
- continue;
- ret = p;
- break;
- } else if (p->id == -1)
- /* remember match with id == -1 in case there is
- * no clock for idno */
- retgen = p;
- }
- }
-
- if (!ret && retgen && try_module_get(retgen->owner))
- ret = retgen;
-
- if (ret)
- ++ret->refcount;
-
- spin_unlock_irqrestore(&clk_lock, flags);
-
- return ret ? ret : ERR_PTR(-ENOENT);
-}
-EXPORT_SYMBOL(clk_get);
-
-void clk_put(struct clk *clk)
-{
- module_put(clk->owner);
- --clk->refcount;
-}
-EXPORT_SYMBOL(clk_put);
-
-static int clk_enable_unlocked(struct clk *clk)
-{
- int ret = 0;
- if (clk->parent) {
- ret = clk_enable_unlocked(clk->parent);
- if (ret)
- return ret;
- }
-
- if (clk->usage++ == 0 && clk->endisable)
- ret = clk->endisable(clk, 1);
-
- return ret;
-}
-
-int clk_enable(struct clk *clk)
-{
- int ret;
- unsigned long flags;
-
- spin_lock_irqsave(&clk_lock, flags);
-
- ret = clk_enable_unlocked(clk);
-
- spin_unlock_irqrestore(&clk_lock, flags);
-
- return ret;
-}
-EXPORT_SYMBOL(clk_enable);
-
-static void clk_disable_unlocked(struct clk *clk)
-{
- if (--clk->usage == 0 && clk->endisable)
- clk->endisable(clk, 0);
-
- if (clk->parent)
- clk_disable_unlocked(clk->parent);
-}
-
-void clk_disable(struct clk *clk)
-{
- unsigned long flags;
-
- spin_lock_irqsave(&clk_lock, flags);
-
- clk_disable_unlocked(clk);
-
- spin_unlock_irqrestore(&clk_lock, flags);
-}
-EXPORT_SYMBOL(clk_disable);
-
-unsigned long clk_get_rate(struct clk *clk)
-{
- if (clk->get_rate)
- return clk->get_rate(clk);
-
- if (clk->rate)
- return clk->rate;
-
- if (clk->parent)
- return clk_get_rate(clk->parent);
-
- return 0;
-}
-EXPORT_SYMBOL(clk_get_rate);
-
-int clk_register(struct clk *clk)
-{
- unsigned long flags;
-
- spin_lock_irqsave(&clk_lock, flags);
-
- list_add(&clk->node, &clocks);
-
- if (clk->parent)
- ++clk->parent->refcount;
-
- spin_unlock_irqrestore(&clk_lock, flags);
-
- return 0;
-}
-
-int clk_unregister(struct clk *clk)
-{
- int ret = 0;
- unsigned long flags;
-
- spin_lock_irqsave(&clk_lock, flags);
-
- if (clk->usage || clk->refcount)
- ret = -EBUSY;
- else
- list_del(&clk->node);
-
- if (clk->parent)
- --clk->parent->refcount;
-
- spin_unlock_irqrestore(&clk_lock, flags);
-
- return ret;
-}
-
-#if defined CONFIG_DEBUG_FS
-
-#include <linux/debugfs.h>
-#include <linux/seq_file.h>
-
-static int clk_debugfs_show(struct seq_file *s, void *null)
-{
- unsigned long flags;
- struct clk *p;
-
- spin_lock_irqsave(&clk_lock, flags);
-
- list_for_each_entry(p, &clocks, node)
- seq_printf(s, "%s.%d: usage=%lu refcount=%lu rate=%lu\n",
- p->name, p->id, p->usage, p->refcount,
- p->usage ? clk_get_rate(p) : 0);
-
- spin_unlock_irqrestore(&clk_lock, flags);
-
- return 0;
-}
-
-static int clk_debugfs_open(struct inode *inode, struct file *file)
-{
- return single_open(file, clk_debugfs_show, NULL);
-}
-
-static const struct file_operations clk_debugfs_operations = {
- .open = clk_debugfs_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release,
-};
-
-static int __init clk_debugfs_init(void)
-{
- struct dentry *dentry;
-
- dentry = debugfs_create_file("clk", S_IFREG | S_IRUGO, NULL, NULL,
- &clk_debugfs_operations);
- return IS_ERR(dentry) ? PTR_ERR(dentry) : 0;
-}
-subsys_initcall(clk_debugfs_init);
-
-#endif /* if defined CONFIG_DEBUG_FS */