1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/pwm/pwm-tiecap.c b/drivers/pwm/pwm-tiecap.c
index 081471fbb097..d6d4cf05565e 100644
--- a/drivers/pwm/pwm-tiecap.c
+++ b/drivers/pwm/pwm-tiecap.c
@@ -60,7 +60,7 @@ static int ecap_pwm_config(struct pwm_chip *chip, struct pwm_device *pwm,
         unsigned long period_cycles, duty_cycles;
         unsigned int reg_val;
 
-        if (period_ns < 0 || duty_ns < 0 || period_ns > NSEC_PER_SEC)
+        if (period_ns > NSEC_PER_SEC)
                 return -ERANGE;
 
         c = pc->clk_rate;