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authorVitaly Wool <vwool@ru.mvista.com>2006-06-22 10:26:20 +0100
committerRussell King <rmk+kernel@arm.linux.org.uk>2006-06-22 10:26:20 +0100
commite9931b5da6247c18cbf4db8e9e924c980758f41a (patch)
treec82648c1bc484a738c695bf88831083777534ccf /arch/arm/mach-pnx4008/clock.c
parent1a6be26d5b1a86f66ef60e5b73bae64d50873724 (diff)
downloadlinux-2.6.34-ux500-e9931b5da6247c18cbf4db8e9e924c980758f41a.tar.gz
[ARM] 3622/1: pnx4008: remove clk_use/clk_unuse
Patch from Vitaly Wool clk_use/clk_unuse functions are no longer needed, so removing those from arch/arm/mach-pnx4008/clock.c. Also, the order of functions is rearranged a bit, to avoid forward declarations. Signed-off-by: Vitaly Wool <vwool@ru.mvista.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/mach-pnx4008/clock.c')
-rw-r--r--arch/arm/mach-pnx4008/clock.c129
1 files changed, 51 insertions, 78 deletions
diff --git a/arch/arm/mach-pnx4008/clock.c b/arch/arm/mach-pnx4008/clock.c
index 285b22f631e..f582ed2ec43 100644
--- a/arch/arm/mach-pnx4008/clock.c
+++ b/arch/arm/mach-pnx4008/clock.c
@@ -767,6 +767,54 @@ static struct clk *onchip_clks[] = {
&uart6_ck,
};
+static int local_clk_enable(struct clk *clk)
+{
+ int ret = 0;
+
+ if (!(clk->flags & FIXED_RATE) && !clk->rate && clk->set_rate
+ && clk->user_rate)
+ ret = clk->set_rate(clk, clk->user_rate);
+ return ret;
+}
+
+static void local_clk_disable(struct clk *clk)
+{
+ if (!(clk->flags & FIXED_RATE) && clk->rate && clk->set_rate)
+ clk->set_rate(clk, 0);
+}
+
+static void local_clk_unuse(struct clk *clk)
+{
+ if (clk->usecount > 0 && !(--clk->usecount)) {
+ local_clk_disable(clk);
+ if (clk->parent)
+ local_clk_unuse(clk->parent);
+ }
+}
+
+static int local_clk_use(struct clk *clk)
+{
+ int ret = 0;
+ if (clk->usecount++ == 0) {
+ if (clk->parent)
+ ret = local_clk_use(clk->parent);
+
+ if (ret != 0) {
+ clk->usecount--;
+ goto out;
+ }
+
+ ret = local_clk_enable(clk);
+
+ if (ret != 0 && clk->parent) {
+ local_clk_unuse(clk->parent);
+ clk->usecount--;
+ }
+ }
+out:
+ return ret;
+}
+
static int local_set_rate(struct clk *clk, u32 rate)
{
int ret = -EINVAL;
@@ -847,28 +895,12 @@ unsigned long clk_get_rate(struct clk *clk)
}
EXPORT_SYMBOL(clk_get_rate);
-static int local_clk_enable(struct clk *clk)
-{
- int ret = 0;
-
- if (!(clk->flags & FIXED_RATE) && !clk->rate && clk->set_rate
- && clk->user_rate)
- ret = clk->set_rate(clk, clk->user_rate);
- return ret;
-}
-
-static void local_clk_disable(struct clk *clk)
-{
- if (!(clk->flags & FIXED_RATE) && clk->rate && clk->set_rate)
- clk->set_rate(clk, 0);
-}
-
int clk_enable(struct clk *clk)
{
int ret = 0;
clock_lock();
- ret = local_clk_enable(clk);
+ ret = local_clk_use(clk);
clock_unlock();
return ret;
}
@@ -878,70 +910,11 @@ EXPORT_SYMBOL(clk_enable);
void clk_disable(struct clk *clk)
{
clock_lock();
- local_clk_disable(clk);
- clock_unlock();
-}
-
-EXPORT_SYMBOL(clk_disable);
-
-static void local_clk_unuse(struct clk *clk)
-{
- if (clk->usecount > 0 && !(--clk->usecount)) {
- local_clk_disable(clk);
- if (clk->parent)
- local_clk_unuse(clk->parent);
- }
-}
-
-static int local_clk_use(struct clk *clk)
-{
- int ret = 0;
- if (clk->usecount++ == 0) {
- if (clk->parent)
- ret = local_clk_use(clk->parent);
-
- if (ret != 0) {
- clk->usecount--;
- goto out;
- }
-
- ret = local_clk_enable(clk);
-
- if (ret != 0 && clk->parent) {
- local_clk_unuse(clk->parent);
- clk->usecount--;
- }
- }
-out:
- return ret;
-}
-
-/* The main purpose of clk_use ans clk_unuse functions
- * is to control switching 13MHz oscillator and PLL1 (13'MHz),
- * so that they are disabled whenever none of PLL2-5 is using them.
- * Although in theory these functions should work with any clock,
- * please use them only on PLL2 - PLL5 to avoid confusion.
- */
-int clk_use(struct clk *clk)
-{
- int ret = 0;
-
- clock_lock();
- ret = local_clk_use(clk);
- clock_unlock();
- return ret;
-}
-EXPORT_SYMBOL(clk_use);
-
-void clk_unuse(struct clk *clk)
-{
-
- clock_lock();
local_clk_unuse(clk);
clock_unlock();
}
-EXPORT_SYMBOL(clk_unuse);
+EXPORT_SYMBOL(clk_disable);
long clk_round_rate(struct clk *clk, unsigned long rate)
{
@@ -995,7 +968,7 @@ static int __init clk_init(void)
__FUNCTION__, (*clkp)->name, (*clkp)->rate);
}
- clk_use(&ck_pll4);
+ local_clk_use(&ck_pll4);
/* if ck_13MHz is not used, disable it. */
if (ck_13MHz.usecount == 0)