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Diffstat (limited to 'arch/arm/mach-pxa/clock.c')
-rw-r--r--arch/arm/mach-pxa/clock.c110
1 files changed, 22 insertions, 88 deletions
diff --git a/arch/arm/mach-pxa/clock.c b/arch/arm/mach-pxa/clock.c
index ca8e2053815..4d466102a02 100644
--- a/arch/arm/mach-pxa/clock.c
+++ b/arch/arm/mach-pxa/clock.c
@@ -3,62 +3,15 @@
*/
#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/spinlock.h>
-#include <linux/platform_device.h>
#include <linux/delay.h>
+#include <linux/clkdev.h>
-#include <mach/pxa2xx-regs.h>
-#include <mach/pxa2xx-gpio.h>
-#include <mach/hardware.h>
-
-#include "devices.h"
-#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;
@@ -100,53 +53,34 @@ unsigned long clk_get_rate(struct clk *clk)
}
EXPORT_SYMBOL(clk_get_rate);
-
-void clk_cken_enable(struct clk *clk)
+int clk_set_rate(struct clk *clk, unsigned long rate)
{
- CKEN |= 1 << clk->cken;
-}
+ unsigned long flags;
+ int ret = -EINVAL;
-void clk_cken_disable(struct clk *clk)
-{
- CKEN &= ~(1 << clk->cken);
-}
+ if (clk->ops->setrate) {
+ spin_lock_irqsave(&clocks_lock, flags);
+ ret = clk->ops->setrate(clk, rate);
+ spin_unlock_irqrestore(&clocks_lock, flags);
+ }
-const struct clkops clk_cken_ops = {
- .enable = clk_cken_enable,
- .disable = clk_cken_disable,
-};
+ return ret;
+}
+EXPORT_SYMBOL(clk_set_rate);
-void clks_register(struct clk *clks, size_t num)
+void clk_dummy_enable(struct clk *clk)
{
- int i;
-
- mutex_lock(&clocks_mutex);
- for (i = 0; i < num; i++)
- list_add(&clks[i].node, &clocks);
- mutex_unlock(&clocks_mutex);
}
-int clk_add_alias(char *alias, struct device *alias_dev, char *id,
- struct device *dev)
+void clk_dummy_disable(struct clk *clk)
{
- struct clk *r = clk_lookup(dev, id);
- struct clk *new;
-
- 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);
+const struct clkops clk_dummy_ops = {
+ .enable = clk_dummy_enable,
+ .disable = clk_dummy_disable,
+};
- return 0;
-}
+struct clk clk_dummy = {
+ .ops = &clk_dummy_ops,
+};