diff options
Diffstat (limited to 'drivers/pwm')
| -rw-r--r-- | drivers/pwm/pwm-stm32.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/pwm/pwm-stm32.c b/drivers/pwm/pwm-stm32.c index ffe572b76174..fb714936ff8f 100644 --- a/drivers/pwm/pwm-stm32.c +++ b/drivers/pwm/pwm-stm32.c @@ -351,8 +351,9 @@ static int stm32_pwm_config(struct stm32_pwm *priv, unsigned int ch, regmap_set_bits(priv->regmap, TIM_CR1, TIM_CR1_ARPE); /* Calculate the duty cycles */ - dty = prd * duty_ns; - do_div(dty, period_ns); + dty = (unsigned long long)clk_get_rate(priv->clk) * duty_ns; + do_div(dty, prescaler + 1); + do_div(dty, NSEC_PER_SEC); regmap_write(priv->regmap, TIM_CCR1 + 4 * ch, dty); |