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-rw-r--r--include/linux/clk.h14
1 files changed, 14 insertions, 0 deletions
diff --git a/include/linux/clk.h b/include/linux/clk.h
index 0dd91148165e..fb5e097d8f72 100644
--- a/include/linux/clk.h
+++ b/include/linux/clk.h
@@ -78,8 +78,22 @@ struct clk_notifier_data {
unsigned long new_rate;
};
+/**
+ * clk_notifier_register: register a clock rate-change notifier callback
+ * @clk: clock whose rate we are interested in
+ * @nb: notifier block with callback function pointer
+ *
+ * ProTip: debugging across notifier chains can be frustrating. Make sure that
+ * your notifier callback function prints a nice big warning in case of
+ * failure.
+ */
int clk_notifier_register(struct clk *clk, struct notifier_block *nb);
+/**
+ * clk_notifier_unregister: unregister a clock rate-change notifier callback
+ * @clk: clock whose rate we are no longer interested in
+ * @nb: notifier block which will be unregistered
+ */
int clk_notifier_unregister(struct clk *clk, struct notifier_block *nb);
/**