Commit 5e63ff9a authored by Sascha Hauer's avatar Sascha Hauer
Browse files

[ARM] MXC: remove the now unused #ifndef CONFIG_COMMON_CLKDEV


Signed-off-by: default avatarSascha Hauer <s.hauer@pengutronix.de>
parent 7dae1134
......@@ -48,76 +48,6 @@ static DEFINE_MUTEX(clocks_mutex);
* Standard clock functions defined in include/linux/clk.h
*-------------------------------------------------------------------------*/
/*
* All the code inside #ifndef CONFIG_COMMON_CLKDEV can be removed once all
* MXC architectures have switched to using clkdev.
*/
#ifndef CONFIG_COMMON_CLKDEV
/*
* Retrieve a clock by name.
*
* Note that we first try to use device id on the bus
* and clock name. If this fails, we try to use "<name>.<id>". If this fails,
* we try to use clock name only.
* The reference count to the clock's module owner ref count is incremented.
*/
struct clk *clk_get(struct device *dev, const char *id)
{
struct clk *p, *clk = ERR_PTR(-ENOENT);
int idno;
const char *str;
if (id == NULL)
return clk;
if (dev == NULL || dev->bus != &platform_bus_type)
idno = -1;
else
idno = to_platform_device(dev)->id;
mutex_lock(&clocks_mutex);
list_for_each_entry(p, &clocks, node) {
if (p->id == idno &&
strcmp(id, p->name) == 0 && try_module_get(p->owner)) {
clk = p;
goto found;
}
}
str = strrchr(id, '.');
if (str) {
int cnt = str - id;
str++;
idno = simple_strtol(str, NULL, 10);
list_for_each_entry(p, &clocks, node) {
if (p->id == idno &&
strlen(p->name) == cnt &&
strncmp(id, p->name, cnt) == 0 &&
try_module_get(p->owner)) {
clk = p;
goto found;
}
}
}
list_for_each_entry(p, &clocks, node) {
if (strcmp(id, p->name) == 0 && try_module_get(p->owner)) {
clk = p;
goto found;
}
}
printk(KERN_WARNING "clk: Unable to get requested clock: %s\n", id);
found:
mutex_unlock(&clocks_mutex);
return clk;
}
EXPORT_SYMBOL(clk_get);
#endif
static void __clk_disable(struct clk *clk)
{
if (clk == NULL || IS_ERR(clk))
......@@ -194,16 +124,6 @@ unsigned long clk_get_rate(struct clk *clk)
}
EXPORT_SYMBOL(clk_get_rate);
#ifndef CONFIG_COMMON_CLKDEV
/* Decrement the clock's module reference count */
void clk_put(struct clk *clk)
{
if (clk && !IS_ERR(clk))
module_put(clk->owner);
}
EXPORT_SYMBOL(clk_put);
#endif
/* Round the requested clock rate to the nearest supported
* rate that is less than or equal to the requested rate.
* This is dependent on the clock's current parent.
......@@ -266,80 +186,6 @@ struct clk *clk_get_parent(struct clk *clk)
}
EXPORT_SYMBOL(clk_get_parent);
#ifndef CONFIG_COMMON_CLKDEV
/*
* Add a new clock to the clock tree.
*/
int clk_register(struct clk *clk)
{
if (clk == NULL || IS_ERR(clk))
return -EINVAL;
mutex_lock(&clocks_mutex);
list_add(&clk->node, &clocks);
mutex_unlock(&clocks_mutex);
return 0;
}
EXPORT_SYMBOL(clk_register);
/* Remove a clock from the clock tree */
void clk_unregister(struct clk *clk)
{
if (clk == NULL || IS_ERR(clk))
return;
mutex_lock(&clocks_mutex);
list_del(&clk->node);
mutex_unlock(&clocks_mutex);
}
EXPORT_SYMBOL(clk_unregister);
#ifdef CONFIG_PROC_FS
static int mxc_clock_read_proc(char *page, char **start, off_t off,
int count, int *eof, void *data)
{
struct clk *clkp;
char *p = page;
int len;
list_for_each_entry(clkp, &clocks, node) {
p += sprintf(p, "%s-%d:\t\t%lu, %d", clkp->name, clkp->id,
clk_get_rate(clkp), clkp->usecount);
if (clkp->parent)
p += sprintf(p, ", %s-%d\n", clkp->parent->name,
clkp->parent->id);
else
p += sprintf(p, "\n");
}
len = (p - page) - off;
if (len < 0)
len = 0;
*eof = (len <= count) ? 1 : 0;
*start = page + off;
return len;
}
static int __init mxc_setup_proc_entry(void)
{
struct proc_dir_entry *res;
res = create_proc_read_entry("cpu/clocks", 0, NULL,
mxc_clock_read_proc, NULL);
if (!res) {
printk(KERN_ERR "Failed to create proc/cpu/clocks\n");
return -ENOMEM;
}
return 0;
}
late_initcall(mxc_setup_proc_entry);
#endif /* CONFIG_PROC_FS */
#endif
/*
* Get the resulting clock rate from a PLL register value and the input
* frequency. PLLs with this register layout can at least be found on
......
Markdown is supported
0% or .
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment