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clk: add of_clk_src_onecell_get() support

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For those SoCs that have hundreds of clock outputs, their clock
DT bindings could reasonably define #clock-cells as 1 and require
the client device specify the index of the clock it consumes in the
cell of its "clocks" phandle.

Add a generic of_clk_src_onecell_get() function for this purpose.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Reviewed-by: Rob Herring <rob.herring@calxeda.com>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
This commit is contained in:
Shawn Guo
2012-08-22 21:36:27 +08:00
committed by Mike Turquette
parent 09b9b2b204
commit 494bfec999
2 changed files with 19 additions and 0 deletions
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5
include/linux/clk-provider.h
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@@ -361,6 +361,11 @@ int of_clk_add_provider(struct device_node *np,
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_onecell_data {
struct clk **clks;
unsigned int clk_num;
};
struct clk *of_clk_src_onecell_get(struct of_phandle_args *clkspec, void *data);
const char *of_clk_get_parent_name(struct device_node *np, int index);
void of_clk_init(const struct of_device_id *matches);