clk: add clk_unregister_fixed_factor()

Allow to unregister fixed factor clock.

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

2 files changed, 14 insertions, 0 deletions

diff --git a/drivers/clk/clk-fixed-factor.c b/drivers/clk/clk-fixed-factor.c
index f0ddf37d5e15..053448e2453d 100644
--- a/drivers/clk/clk-fixed-factor.c
+++ b/drivers/clk/clk-fixed-factor.c
@@ -100,6 +100,19 @@ struct clk *clk_register_fixed_factor(struct device *dev, const char *name,
 }
 EXPORT_SYMBOL_GPL(clk_register_fixed_factor);
 
+void clk_unregister_fixed_factor(struct clk *clk)
+{
+	struct clk_hw *hw;
+
+	hw = __clk_get_hw(clk);
+	if (!hw)
+		return;
+
+	clk_unregister(clk);
+	kfree(to_clk_fixed_factor(hw));
+}
+EXPORT_SYMBOL_GPL(clk_unregister_fixed_factor);
+
 #ifdef CONFIG_OF
 /**
  * of_fixed_factor_clk_setup() - Setup function for simple fixed factor clock
diff --git a/include/linux/clk-provider.h b/include/linux/clk-provider.h
index 33dc814d0f43..3641eecf462a 100644
--- a/include/linux/clk-provider.h
+++ b/include/linux/clk-provider.h
@@ -498,6 +498,7 @@ extern const struct clk_ops clk_fixed_factor_ops;
 struct clk *clk_register_fixed_factor(struct device *dev, const char *name,
 		const char *parent_name, unsigned long flags,
 		unsigned int mult, unsigned int div);
+void clk_unregister_fixed_factor(struct clk *clk);
 
 /**
  * struct clk_fractional_divider - adjustable fractional divider clock