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-rw-r--r--include/linux/clk.h20
1 files changed, 13 insertions, 7 deletions
diff --git a/include/linux/clk.h b/include/linux/clk.h
index 853a8f181394..7fd6a1febcf4 100644
--- a/include/linux/clk.h
+++ b/include/linux/clk.h
@@ -239,7 +239,8 @@ static inline int clk_prepare(struct clk *clk)
return 0;
}
-static inline int __must_check clk_bulk_prepare(int num_clks, struct clk_bulk_data *clks)
+static inline int __must_check
+clk_bulk_prepare(int num_clks, const struct clk_bulk_data *clks)
{
might_sleep();
return 0;
@@ -263,7 +264,8 @@ static inline void clk_unprepare(struct clk *clk)
{
might_sleep();
}
-static inline void clk_bulk_unprepare(int num_clks, struct clk_bulk_data *clks)
+static inline void clk_bulk_unprepare(int num_clks,
+ const struct clk_bulk_data *clks)
{
might_sleep();
}
@@ -625,6 +627,9 @@ long clk_round_rate(struct clk *clk, unsigned long rate);
* @clk: clock source
* @rate: desired clock rate in Hz
*
+ * Updating the rate starts at the top-most affected clock and then
+ * walks the tree down to the bottom-most clock that needs updating.
+ *
* Returns success (0) or negative errno.
*/
int clk_set_rate(struct clk *clk, unsigned long rate);
@@ -820,7 +825,8 @@ static inline int clk_enable(struct clk *clk)
return 0;
}
-static inline int __must_check clk_bulk_enable(int num_clks, struct clk_bulk_data *clks)
+static inline int __must_check clk_bulk_enable(int num_clks,
+ const struct clk_bulk_data *clks)
{
return 0;
}
@@ -829,7 +835,7 @@ static inline void clk_disable(struct clk *clk) {}
static inline void clk_bulk_disable(int num_clks,
- struct clk_bulk_data *clks) {}
+ const struct clk_bulk_data *clks) {}
static inline unsigned long clk_get_rate(struct clk *clk)
{
@@ -918,8 +924,8 @@ static inline void clk_disable_unprepare(struct clk *clk)
clk_unprepare(clk);
}
-static inline int __must_check clk_bulk_prepare_enable(int num_clks,
- struct clk_bulk_data *clks)
+static inline int __must_check
+clk_bulk_prepare_enable(int num_clks, const struct clk_bulk_data *clks)
{
int ret;
@@ -934,7 +940,7 @@ static inline int __must_check clk_bulk_prepare_enable(int num_clks,
}
static inline void clk_bulk_disable_unprepare(int num_clks,
- struct clk_bulk_data *clks)
+ const struct clk_bulk_data *clks)
{
clk_bulk_disable(num_clks, clks);
clk_bulk_unprepare(num_clks, clks);
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