Commit c7dcccae authored Jun 02, 2020 by Guru Das Srinagesh Committed by Thierry Reding Jun 17, 2020

pwm: sun4i: Use nsecs_to_jiffies to avoid a division



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>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>

parent 4cc23430

drivers/pwm/pwm-sun4i.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -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);

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