From 23aa19a22e7fcb49ebe198517d0a15b46810243f Mon Sep 17 00:00:00 2001 From: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Date: Mon, 24 Apr 2017 12:01:07 +0200 Subject: [PATCH] pwm: samsung: Remove redundant checks from pwm_samsung_config() If the requested period_ns and duty_ns values are identical to the last programmed ones pwm_samsung_config() returns early and skips the hardware configuration. The same checks are now done by the PWM core so the driver specific ones can be removed. Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Signed-off-by: Thierry Reding <thierry.reding@gmail.com> --- drivers/pwm/pwm-samsung.c | 3 --- 1 file changed, 3 deletions(-) diff --git a/drivers/pwm/pwm-samsung.c b/drivers/pwm/pwm-samsung.c index f113cda47032..9ea7638228c8 100644 --- a/drivers/pwm/pwm-samsung.c +++ b/drivers/pwm/pwm-samsung.c @@ -312,9 +312,6 @@ static int pwm_samsung_config(struct pwm_chip *chip, struct pwm_device *pwm, if (period_ns > NSEC_PER_SEC) return -ERANGE; - if (period_ns == chan->period_ns && duty_ns == chan->duty_ns) - return 0; - tcnt = readl(our_chip->base + REG_TCNTB(pwm->hwpwm)); oldtcmp = readl(our_chip->base + REG_TCMPB(pwm->hwpwm)); -- GitLab