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pwm: tegra: Use DIV_ROUND_CLOSEST_ULL() instead of local implementation 

Use macro DIV_ROUND_CLOSEST_ULL() for 64-bit division to closest one
instead of implementing the same locally. This increase readability.

Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
This commit is contained in:
Laxman Dewangan 2017-04-07 15:03:59 +05:30 committed by Thierry Reding
parent caf065f8fd
commit 90241fb9b5
1 changed files with 1 additions and 2 deletions
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3
drivers/pwm/pwm-tegra.c
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@ -85,8 +85,7 @@ static int tegra_pwm_config(struct pwm_chip *chip, struct pwm_device *pwm,
* nearest integer during division.
*/
c *= (1 << PWM_DUTY_WIDTH);
c += period_ns / 2;
do_div(c, period_ns);
c = DIV_ROUND_CLOSEST_ULL(c, period_ns);
val = (u32)c << PWM_DUTY_SHIFT;