From: Mike Turquette Date: Fri, 9 May 2014 14:58:20 +0000 (+0100) Subject: clk: of: helper for determining number of parent clocks X-Git-Tag: firefly_0821_release~3680^2~35^2~2^2~1 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=5e657ef3fc6e8becaa3cce066f3d6793dc603183;p=firefly-linux-kernel-4.4.55.git 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 (cherry picked from commit f61027426a5bc7093aa8359a411b053a35bb4b68) Signed-off-by: Jon Medhurst Signed-off-by: Mark Brown --- diff --git a/drivers/clk/clk.c b/drivers/clk/clk.c index 1144e8c7579d..fccac4a41386 100644 --- a/drivers/clk/clk.c +++ b/drivers/clk/clk.c @@ -2084,6 +2084,12 @@ 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 11860985fecb..4c544c814d26 100644 --- a/include/linux/clk-provider.h +++ b/include/linux/clk-provider.h @@ -435,6 +435,7 @@ struct clk_onecell_data { unsigned int clk_num; }; 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);