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Diffstat (limited to 'arch/arm/mach-pxa/clock.c')
-rw-r--r--arch/arm/mach-pxa/clock.c105
1 files changed, 19 insertions, 86 deletions
diff --git a/arch/arm/mach-pxa/clock.c b/arch/arm/mach-pxa/clock.c
index df5ae2710ab..4d466102a02 100644
--- a/arch/arm/mach-pxa/clock.c
+++ b/arch/arm/mach-pxa/clock.c
@@ -3,58 +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 <asm/arch/pxa-regs.h>
-#include <asm/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);
-
- 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;
@@ -96,58 +53,34 @@ unsigned long clk_get_rate(struct clk *clk)
}
EXPORT_SYMBOL(clk_get_rate);
-
-static void clk_gpio27_enable(struct clk *clk)
+int clk_set_rate(struct clk *clk, unsigned long rate)
{
- pxa_gpio_mode(GPIO11_3_6MHz_MD);
-}
-
-static void clk_gpio27_disable(struct clk *clk)
-{
-}
+ unsigned long flags;
+ int ret = -EINVAL;
-static const struct clkops clk_gpio27_ops = {
- .enable = clk_gpio27_enable,
- .disable = clk_gpio27_disable,
-};
+ if (clk->ops->setrate) {
+ spin_lock_irqsave(&clocks_lock, flags);
+ ret = clk->ops->setrate(clk, rate);
+ spin_unlock_irqrestore(&clocks_lock, flags);
+ }
+ return ret;
+}
+EXPORT_SYMBOL(clk_set_rate);
-void clk_cken_enable(struct clk *clk)
+void clk_dummy_enable(struct clk *clk)
{
- CKEN |= 1 << clk->cken;
}
-void clk_cken_disable(struct clk *clk)
+void clk_dummy_disable(struct clk *clk)
{
- CKEN &= ~(1 << clk->cken);
}
-const struct clkops clk_cken_ops = {
- .enable = clk_cken_enable,
- .disable = clk_cken_disable,
+const struct clkops clk_dummy_ops = {
+ .enable = clk_dummy_enable,
+ .disable = clk_dummy_disable,
};
-static struct clk common_clks[] = {
- {
- .name = "GPIO27_CLK",
- .ops = &clk_gpio27_ops,
- .rate = 3686400,
- },
+struct clk clk_dummy = {
+ .ops = &clk_dummy_ops,
};
-
-void clks_register(struct clk *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);
-}
-
-static int __init clk_init(void)
-{
- clks_register(common_clks, ARRAY_SIZE(common_clks));
- return 0;
-}
-arch_initcall(clk_init);