clk: add clk_unregister_fixed_rate()

Allow to unregister fixed rate clock.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>

2 files changed, 14 insertions, 1 deletions

diff --git a/drivers/clk/clk-fixed-rate.c b/drivers/clk/clk-fixed-rate.c
index e156beb871f0..6858bfc548a9 100644
--- a/drivers/clk/clk-fixed-rate.c
+++ b/drivers/clk/clk-fixed-rate.c
@@ -104,6 +104,19 @@ struct clk *clk_register_fixed_rate(struct device *dev, const char *name,
 }
 EXPORT_SYMBOL_GPL(clk_register_fixed_rate);
 
+void clk_unregister_fixed_rate(struct clk *clk)
+{
+	struct clk_hw *hw;
+
+	hw = __clk_get_hw(clk);
+	if (!hw)
+		return;
+
+	clk_unregister(clk);
+	kfree(to_clk_fixed_rate(hw));
+}
+EXPORT_SYMBOL_GPL(clk_unregister_fixed_rate);
+
 #ifdef CONFIG_OF
 /**
  * of_fixed_clk_setup() - Setup function for simple fixed rate clock
diff --git a/include/linux/clk-provider.h b/include/linux/clk-provider.h
index 3641eecf462a..fabe5bedbba6 100644
--- a/include/linux/clk-provider.h
+++ b/include/linux/clk-provider.h
@@ -285,7 +285,7 @@ struct clk *clk_register_fixed_rate(struct device *dev, const char *name,
 struct clk *clk_register_fixed_rate_with_accuracy(struct device *dev,
 		const char *name, const char *parent_name, unsigned long flags,
 		unsigned long fixed_rate, unsigned long fixed_accuracy);
-
+void clk_unregister_fixed_rate(struct clk *clk);
 void of_fixed_clk_setup(struct device_node *np);
 
 /**