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path: root/drivers/clk/clk-divider.c
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Diffstat (limited to 'drivers/clk/clk-divider.c')
-rw-r--r--drivers/clk/clk-divider.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/clk/clk-divider.c b/drivers/clk/clk-divider.c
index a9204c69148..68b40210117 100644
--- a/drivers/clk/clk-divider.c
+++ b/drivers/clk/clk-divider.c
@@ -16,6 +16,7 @@
#include <linux/io.h>
#include <linux/err.h>
#include <linux/string.h>
+#include <linux/log2.h>
/*
* DOC: basic adjustable divider clock that cannot gate
@@ -29,8 +30,7 @@
#define to_clk_divider(_hw) container_of(_hw, struct clk_divider, hw)
-#define div_mask(d) ((1 << (d->width)) - 1)
-#define is_power_of_two(i) !(i & ~i)
+#define div_mask(d) ((1 << ((d)->width)) - 1)
static unsigned int _get_table_maxdiv(const struct clk_div_table *table)
{
@@ -137,7 +137,7 @@ static bool _is_valid_table_div(const struct clk_div_table *table,
static bool _is_valid_div(struct clk_divider *divider, unsigned int div)
{
if (divider->flags & CLK_DIVIDER_POWER_OF_TWO)
- return is_power_of_two(div);
+ return is_power_of_2(div);
if (divider->table)
return _is_valid_table_div(divider->table, div);
return true;