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| author | Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> | 2017-04-24 12:01:07 +0200 |
|---|---|---|
| committer | Thierry Reding <thierry.reding@gmail.com> | 2017-08-21 10:39:11 +0200 |
| commit | 23aa19a22e7fcb49ebe198517d0a15b46810243f (patch) | |
| tree | d09a22b062d62e11deadbe009804eb8c79ca91ed /drivers/pwm | |
| parent | 8bdb65dc8575978214785462870852a56b6a21ac (diff) | |
| download | linux-23aa19a22e7fcb49ebe198517d0a15b46810243f.tar.gz linux-23aa19a22e7fcb49ebe198517d0a15b46810243f.tar.bz2 linux-23aa19a22e7fcb49ebe198517d0a15b46810243f.zip | |
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')
| -rw-r--r-- | drivers/pwm/pwm-samsung.c | 3 |
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)); |