clk_register_fractional_divider
clk = clk_register_fractional_divider(NULL, clk_name, parent,
EXPORT_SYMBOL_GPL(clk_register_fractional_divider);
tmp = clk_register_fractional_divider(NULL, name, __clk_get_name(tmp),
struct clk *clk_register_fractional_divider(struct device *dev,