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yaml
---
r: 183038
b: refs/heads/master
c: 5413f74
h: refs/heads/master
v: v3
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Russell King committed Feb 12, 2010
1 parent 99ee417 commit 2cf59e3
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Showing 2 changed files with 24 additions and 33 deletions.
2 changes: 1 addition & 1 deletion [refs]
Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: 6985a5ad0d719d8c8d584a69f6e5d7138a2e19ab
refs/heads/master: 5413f7464e976e2c2ddb20686fc2e66ae8795b6e
55 changes: 23 additions & 32 deletions trunk/arch/arm/mach-pnx4008/clock.c
Original file line number Diff line number Diff line change
Expand Up @@ -808,49 +808,40 @@ static struct clk_lookup onchip_clkreg[] = {
{ .clk = &wdt_ck, .con_id = "wdt_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);
}
if (WARN_ON(clk->usecount == 0))
return;

static void local_clk_unuse(struct clk *clk)
{
if (clk->usecount > 0 && !(--clk->usecount)) {
local_clk_disable(clk);
if (!(--clk->usecount)) {
if (!(clk->flags & FIXED_RATE) && clk->rate && clk->set_rate)
clk->set_rate(clk, 0);
if (clk->parent)
local_clk_unuse(clk->parent);
local_clk_disable(clk->parent);
}
}

static int local_clk_use(struct clk *clk)
static int local_clk_enable(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;
if (clk->usecount == 0) {
if (clk->parent) {
ret = local_clk_enable(clk->parent);
if (ret != 0)
goto out;
}

ret = local_clk_enable(clk);
if (!(clk->flags & FIXED_RATE) && !clk->rate && clk->set_rate
&& clk->user_rate)
ret = clk->set_rate(clk, clk->user_rate);

if (ret != 0 && clk->parent) {
local_clk_unuse(clk->parent);
clk->usecount--;
local_clk_disable(clk->parent);
goto out;
}

clk->usecount++;
}
out:
return ret;
Expand Down Expand Up @@ -909,10 +900,10 @@ EXPORT_SYMBOL(clk_get_rate);

int clk_enable(struct clk *clk)
{
int ret = 0;
int ret;

clock_lock();
ret = local_clk_use(clk);
ret = local_clk_enable(clk);
clock_unlock();
return ret;
}
Expand All @@ -922,7 +913,7 @@ EXPORT_SYMBOL(clk_enable);
void clk_disable(struct clk *clk)
{
clock_lock();
local_clk_unuse(clk);
local_clk_disable(clk);
clock_unlock();
}

Expand Down Expand Up @@ -980,7 +971,7 @@ static int __init clk_init(void)
__func__, (*clkp)->name, (*clkp)->rate);
}

local_clk_use(&ck_pll4);
local_clk_enable(&ck_pll4);

/* if ck_13MHz is not used, disable it. */
if (ck_13MHz.usecount == 0)
Expand Down

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