diff options
Diffstat (limited to 'drivers/clk/clk-gate.c')
| -rw-r--r-- | drivers/clk/clk-gate.c | 34 |
1 files changed, 19 insertions, 15 deletions
diff --git a/drivers/clk/clk-gate.c b/drivers/clk/clk-gate.c index fe2ff9e774c2..42a4b941b6e7 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; } |