[PATCH V2 1/4] pwm: tegra: Use DIV_ROUND_CLOSEST_ULL() instead of local implementation

Laxman Dewangan
2017-04-06T14:40:53Z

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

Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
---
Changes from V1:
None

drivers/pwm/pwm-tegra.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/pwm/pwm-tegra.c b/drivers/pwm/pwm-tegra.c
index e464784..0a688da 100644
--- a/drivers/pwm/pwm-tegra.c
+++ b/drivers/pwm/pwm-tegra.c
@@ -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;

--
2.1.4