[ARM] pxa: convert to clkdev and match clocks by struct device where possible
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
diff --git a/arch/arm/mach-pxa/clock.c b/arch/arm/mach-pxa/clock.c
index ca8e205..a3e0e19 100644
--- a/arch/arm/mach-pxa/clock.c
+++ b/arch/arm/mach-pxa/clock.c
@@ -12,6 +12,7 @@
#include <linux/platform_device.h>
#include <linux/delay.h>
+#include <asm/clkdev.h>
#include <mach/pxa2xx-regs.h>
#include <mach/pxa2xx-gpio.h>
#include <mach/hardware.h>
@@ -20,45 +21,8 @@
#include "generic.h"
#include "clock.h"
-static LIST_HEAD(clocks);
-static DEFINE_MUTEX(clocks_mutex);
static DEFINE_SPINLOCK(clocks_lock);
-static struct clk *clk_lookup(struct device *dev, const char *id)
-{
- struct clk *p;
-
- list_for_each_entry(p, &clocks, node)
- if (strcmp(id, p->name) == 0 && p->dev == dev)
- return p;
-
- return NULL;
-}
-
-struct clk *clk_get(struct device *dev, const char *id)
-{
- struct clk *p, *clk = ERR_PTR(-ENOENT);
-
- mutex_lock(&clocks_mutex);
- p = clk_lookup(dev, id);
- if (!p)
- p = clk_lookup(NULL, id);
- if (p)
- clk = p;
- mutex_unlock(&clocks_mutex);
-
- if (!IS_ERR(clk) && clk->ops == NULL)
- clk = clk->other;
-
- return clk;
-}
-EXPORT_SYMBOL(clk_get);
-
-void clk_put(struct clk *clk)
-{
-}
-EXPORT_SYMBOL(clk_put);
-
int clk_enable(struct clk *clk)
{
unsigned long flags;
@@ -116,37 +80,27 @@
.disable = clk_cken_disable,
};
-void clks_register(struct clk *clks, size_t num)
+void clks_register(struct clk_lookup *clks, size_t num)
{
int i;
- mutex_lock(&clocks_mutex);
for (i = 0; i < num; i++)
- list_add(&clks[i].node, &clocks);
- mutex_unlock(&clocks_mutex);
+ clkdev_add(&clks[i]);
}
int clk_add_alias(char *alias, struct device *alias_dev, char *id,
struct device *dev)
{
- struct clk *r = clk_lookup(dev, id);
- struct clk *new;
+ struct clk *r = clk_get(dev, id);
+ struct clk_lookup *l;
if (!r)
return -ENODEV;
- new = kzalloc(sizeof(struct clk), GFP_KERNEL);
-
- if (!new)
- return -ENOMEM;
-
- new->name = alias;
- new->dev = alias_dev;
- new->other = r;
-
- mutex_lock(&clocks_mutex);
- list_add(&new->node, &clocks);
- mutex_unlock(&clocks_mutex);
-
+ l = clkdev_alloc(r, alias, alias_dev ? dev_name(alias_dev) : NULL);
+ clk_put(r);
+ if (!l)
+ return -ENODEV;
+ clkdev_add(l);
return 0;
}