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author | Mike Turquette <mturquette@linaro.org> | 2013-10-08 08:12:13 +0200 |
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committer | Mike Turquette <mturquette@linaro.org> | 2013-10-08 08:13:33 +0200 |
commit | f61027426a5bc7093aa8359a411b053a35bb4b68 (patch) | |
tree | 225758cc8fe637500ff2a9160550aabcc0ddb4ef | |
parent | clk/zynq: Fix possible memory leak (diff) | |
download | linux-f61027426a5bc7093aa8359a411b053a35bb4b68.tar.xz linux-f61027426a5bc7093aa8359a411b053a35bb4b68.zip |
clk: of: helper for determining number of parent clocks
Walks the "clocks" array of parent clock phandles and returns the
number.
Signed-off-by: Mike Turquette <mturquette@linaro.org>
-rw-r--r-- | drivers/clk/clk.c | 6 | ||||
-rw-r--r-- | include/linux/clk-provider.h | 1 |
2 files changed, 7 insertions, 0 deletions
diff --git a/drivers/clk/clk.c b/drivers/clk/clk.c index 32e2fed6d143..2cf2ea6b77a1 100644 --- a/drivers/clk/clk.c +++ b/drivers/clk/clk.c @@ -2202,6 +2202,12 @@ struct clk *of_clk_get_from_provider(struct of_phandle_args *clkspec) return clk; } +int of_clk_get_parent_count(struct device_node *np) +{ + return of_count_phandle_with_args(np, "clocks", "#clock-cells"); +} +EXPORT_SYMBOL_GPL(of_clk_get_parent_count); + const char *of_clk_get_parent_name(struct device_node *np, int index) { struct of_phandle_args clkspec; diff --git a/include/linux/clk-provider.h b/include/linux/clk-provider.h index 73bdb69f0c08..7e59253b8603 100644 --- a/include/linux/clk-provider.h +++ b/include/linux/clk-provider.h @@ -472,6 +472,7 @@ void of_clk_del_provider(struct device_node *np); struct clk *of_clk_src_simple_get(struct of_phandle_args *clkspec, void *data); struct clk *of_clk_src_onecell_get(struct of_phandle_args *clkspec, void *data); +int of_clk_get_parent_count(struct device_node *np); const char *of_clk_get_parent_name(struct device_node *np, int index); void of_clk_init(const struct of_device_id *matches); |