Commit 23aa19a2 authored Apr 24, 2017 by Bartlomiej Zolnierkiewicz Committed by Thierry Reding Aug 21, 2017

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>

parent 8bdb65dc

drivers/pwm/pwm-samsung.c

+0 −3

Original line number	Diff line number	Diff line
		@@ -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));