[PATCH 2/3] clk: Merge prepare and unprepare sections

From: Geert Uytterhoeven
Date: Mon Dec 01 2025 - 04:43:16 EST


<linux/clk.h> contains two consecutive #ifdef/#else/#endif sections
that check for CONFIG_HAVE_CLK_PREPARE: one for prepare-related
functionality, and a second for unprepare-related functionality.
Reduce #ifdef clutter by merging them.

Signed-off-by: Geert Uytterhoeven <geert@xxxxxxxxxxxxxx>
---
include/linux/clk.h | 46 ++++++++++++++++++++++-----------------------
1 file changed, 23 insertions(+), 23 deletions(-)

diff --git a/include/linux/clk.h b/include/linux/clk.h
index 64ff118ffb1a1d7d..9e5291f37c50c78a 100644
--- a/include/linux/clk.h
+++ b/include/linux/clk.h
@@ -329,8 +329,21 @@ static inline void clk_restore_context(void) {}
* Must not be called from within atomic context.
*/
int clk_prepare(struct clk *clk);
+
+/**
+ * clk_unprepare - undo preparation of a clock source
+ * @clk: clock source
+ *
+ * This undoes a previously prepared clock. The caller must balance
+ * the number of prepare and unprepare calls.
+ *
+ * Must not be called from within atomic context.
+ */
+void clk_unprepare(struct clk *clk);
+
int __must_check clk_bulk_prepare(int num_clks,
const struct clk_bulk_data *clks);
+void clk_bulk_unprepare(int num_clks, const struct clk_bulk_data *clks);

/**
* clk_is_enabled_when_prepared - indicate if preparing a clock also enables it.
@@ -355,41 +368,28 @@ static inline int clk_prepare(struct clk *clk)
return 0;
}

-static inline int __must_check
-clk_bulk_prepare(int num_clks, const struct clk_bulk_data *clks)
+static inline void clk_unprepare(struct clk *clk)
{
might_sleep();
- return 0;
}

-static inline bool clk_is_enabled_when_prepared(struct clk *clk)
-{
- return false;
-}
-#endif
-
-/**
- * clk_unprepare - undo preparation of a clock source
- * @clk: clock source
- *
- * This undoes a previously prepared clock. The caller must balance
- * the number of prepare and unprepare calls.
- *
- * Must not be called from within atomic context.
- */
-#ifdef CONFIG_HAVE_CLK_PREPARE
-void clk_unprepare(struct clk *clk);
-void clk_bulk_unprepare(int num_clks, const struct clk_bulk_data *clks);
-#else
-static inline void clk_unprepare(struct clk *clk)
+static inline int __must_check
+clk_bulk_prepare(int num_clks, const struct clk_bulk_data *clks)
{
might_sleep();
+ return 0;
}
+
static inline void clk_bulk_unprepare(int num_clks,
const struct clk_bulk_data *clks)
{
might_sleep();
}
+
+static inline bool clk_is_enabled_when_prepared(struct clk *clk)
+{
+ return false;
+}
#endif

#ifdef CONFIG_HAVE_CLK
--
2.43.0