diff options
Diffstat (limited to 'drivers/clk/qcom/clk-rcg2.c')
| -rw-r--r-- | drivers/clk/qcom/clk-rcg2.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/drivers/clk/qcom/clk-rcg2.c b/drivers/clk/qcom/clk-rcg2.c index 2375e8122012..28019edd2a50 100644 --- a/drivers/clk/qcom/clk-rcg2.c +++ b/drivers/clk/qcom/clk-rcg2.c @@ -13,6 +13,7 @@ #include <linux/rational.h> #include <linux/regmap.h> #include <linux/math64.h> +#include <linux/minmax.h> #include <linux/slab.h> #include <asm/div64.h> @@ -461,9 +462,11 @@ static int clk_rcg2_set_duty_cycle(struct clk_hw *hw, struct clk_duty *duty) /* Calculate 2d value */ d = DIV_ROUND_CLOSEST(n * duty_per * 2, 100); - /* Check bit widths of 2d. If D is too big reduce duty cycle. */ - if (d > mask) - d = mask; + /* + * Check bit widths of 2d. If D is too big reduce duty cycle. + * Also make sure it is never zero. + */ + d = clamp_val(d, 1, mask); if ((d / 2) > (n - m)) d = (n - m) * 2; |