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-rw-r--r--include/linux/clk.h18
1 files changed, 18 insertions, 0 deletions
diff --git a/include/linux/clk.h b/include/linux/clk.h
index 8381bbf..68c16a6 100644
--- a/include/linux/clk.h
+++ b/include/linux/clk.h
@@ -125,6 +125,19 @@ int clk_set_phase(struct clk *clk, int degrees);
*/
int clk_get_phase(struct clk *clk);
+/**
+ * clk_is_match - check if two clk's point to the same hardware clock
+ * @p: clk compared against q
+ * @q: clk compared against p
+ *
+ * Returns true if the two struct clk pointers both point to the same hardware
+ * clock node. Put differently, returns true if struct clk *p and struct clk *q
+ * share the same struct clk_core object.
+ *
+ * Returns false otherwise. Note that two NULL clks are treated as matching.
+ */
+bool clk_is_match(const struct clk *p, const struct clk *q);
+
#else
static inline long clk_get_accuracy(struct clk *clk)
@@ -142,6 +155,11 @@ static inline long clk_get_phase(struct clk *clk)
return -ENOTSUPP;
}
+static inline bool clk_is_match(const struct clk *p, const struct clk *q)
+{
+ return p == q;
+}
+
#endif
/**
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