add clk_valid() to check for optional clocks are valid.
Signed-off-by: Fabrice Gasnier <fabrice.gasn...@st.com>
---
include/clk.h | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/include/clk.h b/include/clk.h
index 9a35764..71679a9 100644
--- a/include/clk.h
+++ b/include/clk.h
@@ -294,4 +294,14 @@ int clk_disable_bulk(struct clk_bulk *bulk);
int soc_clk_dump(void);
+/**
+ * clk_valid() - check if clk is valid
+ *
+ * @clk: the clock to check
+ * @return TRUE if valid, or FALSE
+ */
+static inline bool clk_valid(struct clk *clk)
+{
+ return !!clk->dev;
+}
#endif
--
1.9.1
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