Messages in this thread Patch in this message | | | From | Bartlomiej Zolnierkiewicz <> | Subject | [PATCH v2 1/3] pwm: pwm-samsung: remove redundant checks from pwm_samsung_config() | Date | Mon, 24 Apr 2017 12:01:07 +0200 |
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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> --- drivers/pwm/pwm-samsung.c | 3 --- 1 file changed, 3 deletions(-)
diff --git a/drivers/pwm/pwm-samsung.c b/drivers/pwm/pwm-samsung.c index f113cda..9ea7638 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)); -- 1.9.1
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