[PATCH v4 2/5] clk: of: helper for determining number of parent clocks
From: Mike Turquette <hidden>
Date: 2013-08-22 05:53:31
Also in:
lkml
Subsystem:
common clk framework, the rest · Maintainers:
Michael Turquette, Stephen Boyd, Linus Torvalds
Walks the "clocks" array of parent clock phandles and returns the number. Signed-off-by: Mike Turquette <redacted> Tested-by: Heiko Stuebner <heiko@sntech.de> Reviewed-by: Heiko Stuebner <heiko@sntech.de> --- No change since v3 drivers/clk/clk.c | 6 ++++++ include/linux/clk-provider.h | 1 + 2 files changed, 7 insertions(+)
diff --git a/drivers/clk/clk.c b/drivers/clk/clk.c
index bc02037..2655882 100644
--- a/drivers/clk/clk.c
+++ b/drivers/clk/clk.c@@ -2189,6 +2189,12 @@ 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 015f18c..5497739 100644
--- a/include/linux/clk-provider.h
+++ b/include/linux/clk-provider.h@@ -471,6 +471,7 @@ 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);
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1.8.1.2