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path: root/drivers/clk/clk-gate.c
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Diffstat (limited to 'drivers/clk/clk-gate.c')
-rw-r--r--drivers/clk/clk-gate.c34
1 files changed, 19 insertions, 15 deletions
diff --git a/drivers/clk/clk-gate.c b/drivers/clk/clk-gate.c
index fe2ff9e774c..42a4b941b6e 100644
--- a/drivers/clk/clk-gate.c
+++ b/drivers/clk/clk-gate.c
@@ -105,6 +105,17 @@ const struct clk_ops clk_gate_ops = {
};
EXPORT_SYMBOL_GPL(clk_gate_ops);
+/**
+ * clk_register_gate - register a gate clock with the clock framework
+ * @dev: device that is registering this clock
+ * @name: name of this clock
+ * @parent_name: name of this clock's parent
+ * @flags: framework-specific flags for this clock
+ * @reg: register address to control gating of this clock
+ * @bit_idx: which bit in the register controls gating of this clock
+ * @clk_gate_flags: gate-specific flags for this clock
+ * @lock: shared register lock for this clock
+ */
struct clk *clk_register_gate(struct device *dev, const char *name,
const char *parent_name, unsigned long flags,
void __iomem *reg, u8 bit_idx,
@@ -113,11 +124,11 @@ struct clk *clk_register_gate(struct device *dev, const char *name,
struct clk_gate *gate;
struct clk *clk;
+ /* allocate the gate */
gate = kzalloc(sizeof(struct clk_gate), GFP_KERNEL);
-
if (!gate) {
pr_err("%s: could not allocate gated clk\n", __func__);
- return NULL;
+ return ERR_PTR(-ENOMEM);
}
/* struct clk_gate assignments */
@@ -126,22 +137,15 @@ struct clk *clk_register_gate(struct device *dev, const char *name,
gate->flags = clk_gate_flags;
gate->lock = lock;
- if (parent_name) {
- gate->parent[0] = kstrdup(parent_name, GFP_KERNEL);
- if (!gate->parent[0])
- goto out;
- }
-
+ /* register the clock */
clk = clk_register(dev, name,
&clk_gate_ops, &gate->hw,
- gate->parent,
+ (parent_name ? &parent_name : NULL),
(parent_name ? 1 : 0),
flags);
- if (clk)
- return clk;
-out:
- kfree(gate->parent[0]);
- kfree(gate);
- return NULL;
+ if (IS_ERR(clk))
+ kfree(gate);
+
+ return clk;
}