From: Bartlomiej Zolnierkiewicz Date: Mon, 24 Apr 2017 10:01:07 +0000 (+0200) Subject: pwm: samsung: Remove redundant checks from pwm_samsung_config() X-Git-Tag: v4.14-rc1~62^2^2~1 X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=23aa19a22e7fcb49ebe198517d0a15b46810243f;p=thirdparty%2Flinux.git 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 Signed-off-by: Thierry Reding --- diff --git a/drivers/pwm/pwm-samsung.c b/drivers/pwm/pwm-samsung.c index f113cda47032e..9ea7638228c87 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));