path: root/drivers/pwm/pwm-samsung.c
diff options
authorBartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>2017-04-24 12:01:07 +0200
committerThierry Reding <thierry.reding@gmail.com>2017-08-21 10:39:11 +0200
commit23aa19a22e7fcb49ebe198517d0a15b46810243f (patch)
treed09a22b062d62e11deadbe009804eb8c79ca91ed /drivers/pwm/pwm-samsung.c
parent8bdb65dc8575978214785462870852a56b6a21ac (diff)
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>
Diffstat (limited to 'drivers/pwm/pwm-samsung.c')
1 files changed, 0 insertions, 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));

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