The PWM config can be triggered via sysfs, so we better suppress the
error message in case of an invalid period to avoid kernel log spamming.
Signed-off-by: Stefan Wahren <wahrenst@gmx.net>
Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
scaler = DIV_ROUND_CLOSEST(NSEC_PER_SEC, rate);
- if (period_ns <= MIN_PERIOD) {
- dev_err(pc->dev, "period %d not supported, minimum %d\n",
- period_ns, MIN_PERIOD);
+ if (period_ns <= MIN_PERIOD)
return -EINVAL;
- }
writel(DIV_ROUND_CLOSEST(duty_ns, scaler),
pc->base + DUTY(pwm->hwpwm));