diff options
Diffstat (limited to 'drivers/clk/clk.c')
| -rw-r--r-- | drivers/clk/clk.c | 16 |
1 files changed, 14 insertions, 2 deletions
diff --git a/drivers/clk/clk.c b/drivers/clk/clk.c index b775c88..fb74dc1 100644 --- a/drivers/clk/clk.c +++ b/drivers/clk/clk.c @@ -2986,9 +2986,21 @@ struct clk *of_clk_get_from_provider(struct of_phandle_args *clkspec) } EXPORT_SYMBOL_GPL(of_clk_get_from_provider); -int of_clk_get_parent_count(struct device_node *np) +/** + * of_clk_get_parent_count() - Count the number of clocks a device node has + * @np: device node to count + * + * Returns: The number of clocks that are possible parents of this node + */ +unsigned int of_clk_get_parent_count(struct device_node *np) { - return of_count_phandle_with_args(np, "clocks", "#clock-cells"); + int count; + + count = of_count_phandle_with_args(np, "clocks", "#clock-cells"); + if (count < 0) + return 0; + + return count; } EXPORT_SYMBOL_GPL(of_clk_get_parent_count); |
