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pwm: samsung: Remove redundant checks from pwm_samsung_config()

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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>
This commit is contained in:
Bartlomiej Zolnierkiewicz 2017-04-24 12:01:07 +02:00 committed by Thierry Reding
parent 8bdb65dc85
commit 23aa19a22e
1 changed files with 0 additions and 3 deletions
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3
drivers/pwm/pwm-samsung.c
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@ -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));