Messages in this thread Patch in this message | | | From | Guru Das Srinagesh <> | Subject | [PATCH v9 09/11] pwm: sun4i: Use 64-bit division function | Date | Tue, 17 Mar 2020 13:05:24 -0700 |
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Since the PWM framework is switching struct pwm_state.period's datatype to u64, prepare for this transition by using div_u64 to handle a 64-bit dividend instead of a straight division operation.
Cc: Maxime Ripard <mripard@kernel.org> Cc: Chen-Yu Tsai <wens@csie.org> Cc: Philipp Zabel <p.zabel@pengutronix.de>
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(-)
diff --git a/drivers/pwm/pwm-sun4i.c b/drivers/pwm/pwm-sun4i.c index 3e3efa6..772fdf4 100644 --- a/drivers/pwm/pwm-sun4i.c +++ b/drivers/pwm/pwm-sun4i.c @@ -286,7 +286,7 @@ 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); + usecs_to_jiffies(div_u64(cstate.period, 1000) + 1); sun4i_pwm->needs_delay[pwm->hwpwm] = true; if (state->polarity != PWM_POLARITY_NORMAL) -- The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project
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