clk: Constify clk_has_parent()

clk_has_parent() doesn't modify the clocks being passed, so let's make
it const.

Suggested-by: Stephen Boyd <[email protected]>
Signed-off-by: Maxime Ripard <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Tested-by: Linux Kernel Functional Testing <[email protected]>
Tested-by: Naresh Kamboju <[email protected]>
Signed-off-by: Stephen Boyd <[email protected]>

2 files changed, 2 insertions, 2 deletions

diff --git a/drivers/clk/clk.c b/drivers/clk/clk.c
index 8e4a8b9aa320..3b68a9b8234a 100644
--- a/drivers/clk/clk.c
+++ b/drivers/clk/clk.c
@@ -2593,7 +2593,7 @@ void clk_hw_reparent(struct clk_hw *hw, struct clk_hw *new_parent)
  *
  * Returns true if @parent is a possible parent for @clk, false otherwise.
  */
-bool clk_has_parent(struct clk *clk, struct clk *parent)
+bool clk_has_parent(const struct clk *clk, const struct clk *parent)
 {
 	/* NULL clocks should be nops, so return success if either is NULL. */
 	if (!clk || !parent)
diff --git a/include/linux/clk.h b/include/linux/clk.h
index c13061cabdfc..1ef013324237 100644
--- a/include/linux/clk.h
+++ b/include/linux/clk.h
@@ -799,7 +799,7 @@ int clk_set_rate_exclusive(struct clk *clk, unsigned long rate);
  *
  * Returns true if @parent is a possible parent for @clk, false otherwise.
  */
-bool clk_has_parent(struct clk *clk, struct clk *parent);
+bool clk_has_parent(const struct clk *clk, const struct clk *parent);
 
 /**
  * clk_set_rate_range - set a rate range for a clock source