[v16,08/11] pwm: sun4i: Use nsecs_to_jiffies to avoid a division
diff mbox series

Message ID 1e530350d0b953ac959f7efb20c881d69d0faed6.1591136989.git.gurus@codeaurora.org
State New
Headers show
Series
  • Convert PWM period and duty cycle to u64
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Commit Message

Guru Das Srinagesh June 2, 2020, 10:31 p.m. UTC
Since the PWM framework is switching struct pwm_state.period's datatype
to u64, prepare for this transition by using nsecs_to_jiffies() which
does away with the need for a division operation.

Signed-off-by: Guru Das Srinagesh <gurus@codeaurora.org>
Acked-by: Chen-Yu Tsai <wens@csie.org>
---
 drivers/pwm/pwm-sun4i.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Patch
diff mbox series

diff --git a/drivers/pwm/pwm-sun4i.c b/drivers/pwm/pwm-sun4i.c
index 18fbbe3..961c59c 100644
--- a/drivers/pwm/pwm-sun4i.c
+++ b/drivers/pwm/pwm-sun4i.c
@@ -285,7 +285,7 @@  static int sun4i_pwm_apply(struct pwm_chip *chip, struct pwm_device *pwm,
 	val = (duty & PWM_DTY_MASK) | PWM_PRD(period);
 	sun4i_pwm_writel(sun4i_pwm, val, PWM_CH_PRD(pwm->hwpwm));
 	sun4i_pwm->next_period[pwm->hwpwm] = jiffies +
-		usecs_to_jiffies(cstate.period / 1000 + 1);
+		nsecs_to_jiffies(cstate.period + 1000);
 
 	if (state->polarity != PWM_POLARITY_NORMAL)
 		ctrl &= ~BIT_CH(PWM_ACT_STATE, pwm->hwpwm);