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Diffstat (limited to 'arch/mips/alchemy/common/clock.c')
-rw-r--r--arch/mips/alchemy/common/clock.c32
1 files changed, 21 insertions, 11 deletions
diff --git a/arch/mips/alchemy/common/clock.c b/arch/mips/alchemy/common/clock.c
index a95a894aceaf..551b0d21d9dc 100644
--- a/arch/mips/alchemy/common/clock.c
+++ b/arch/mips/alchemy/common/clock.c
@@ -111,7 +111,7 @@ static struct clk_aliastable {
/* access locks to SYS_FREQCTRL0/1 and SYS_CLKSRC registers */
static spinlock_t alchemy_clk_fg0_lock;
static spinlock_t alchemy_clk_fg1_lock;
-static spinlock_t alchemy_clk_csrc_lock;
+static DEFINE_SPINLOCK(alchemy_clk_csrc_lock);
/* CPU Core clock *****************************************************/
@@ -152,6 +152,7 @@ static struct clk __init *alchemy_clk_setup_cpu(const char *parent_name,
{
struct clk_init_data id;
struct clk_hw *h;
+ struct clk *clk;
h = kzalloc(sizeof(*h), GFP_KERNEL);
if (!h)
@@ -164,7 +165,13 @@ static struct clk __init *alchemy_clk_setup_cpu(const char *parent_name,
id.ops = &alchemy_clkops_cpu;
h->init = &id;
- return clk_register(NULL, h);
+ clk = clk_register(NULL, h);
+ if (IS_ERR(clk)) {
+ pr_err("failed to register clock\n");
+ kfree(h);
+ }
+
+ return clk;
}
/* AUXPLLs ************************************************************/
@@ -204,30 +211,34 @@ static int alchemy_clk_aux_setr(struct clk_hw *hw,
return 0;
}
-static long alchemy_clk_aux_roundr(struct clk_hw *hw,
- unsigned long rate,
- unsigned long *parent_rate)
+static int alchemy_clk_aux_determine_rate(struct clk_hw *hw,
+ struct clk_rate_request *req)
{
struct alchemy_auxpll_clk *a = to_auxpll_clk(hw);
unsigned long mult;
- if (!rate || !*parent_rate)
+ if (!req->rate || !req->best_parent_rate) {
+ req->rate = 0;
+
return 0;
+ }
- mult = rate / (*parent_rate);
+ mult = req->rate / req->best_parent_rate;
if (mult && (mult < 7))
mult = 7;
if (mult > a->maxmult)
mult = a->maxmult;
- return (*parent_rate) * mult;
+ req->rate = req->best_parent_rate * mult;
+
+ return 0;
}
static const struct clk_ops alchemy_clkops_aux = {
.recalc_rate = alchemy_clk_aux_recalc,
.set_rate = alchemy_clk_aux_setr,
- .round_rate = alchemy_clk_aux_roundr,
+ .determine_rate = alchemy_clk_aux_determine_rate,
};
static struct clk __init *alchemy_clk_setup_aux(const char *parent_name,
@@ -764,7 +775,7 @@ static int __init alchemy_clk_init_fgens(int ctype)
}
id.flags = CLK_SET_RATE_PARENT | CLK_GET_RATE_NOCACHE;
- a = kzalloc((sizeof(*a)) * 6, GFP_KERNEL);
+ a = kcalloc(6, sizeof(*a), GFP_KERNEL);
if (!a)
return -ENOMEM;
@@ -989,7 +1000,6 @@ static int __init alchemy_clk_setup_imux(int ctype)
if (!a)
return -ENOMEM;
- spin_lock_init(&alchemy_clk_csrc_lock);
ret = 0;
for (i = 0; i < 6; i++) {