Walks the "clocks" array of parent clock phandles and returns the
number.
Signed-off-by: Mike Turquette <mturque...@linaro.org>
---
DT gurus, please let me know if this is stupid. I am unfamiliar with
parsing DT blobs and associated APIs.
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 af0dbcc..73e0358 100644
--- a/drivers/clk/clk.c
+++ b/drivers/clk/clk.c
@@ -2082,6 +2082,12 @@ 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 265f384..f8d38f2 100644
--- a/include/linux/clk-provider.h
+++ b/include/linux/clk-provider.h
@@ -442,6 +442,7 @@ 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);
--
1.8.1.2
--
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