From: Stefan Wahren <wahrenst@gmx.net>
Date: Sat, 24 Aug 2019 14:09:46 +0000 (+0200)
Subject: pwm: bcm2835: Suppress error message for invalid period_ns
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=4537e52a526698f503dcb151234414cfa46d534b;p=linux.git

pwm: bcm2835: Suppress error message for invalid period_ns

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>
---

diff --git a/drivers/pwm/pwm-bcm2835.c b/drivers/pwm/pwm-bcm2835.c
index f6fe0b922e1e8..52763063c1007 100644
--- a/drivers/pwm/pwm-bcm2835.c
+++ b/drivers/pwm/pwm-bcm2835.c
@@ -72,11 +72,8 @@ static int bcm2835_pwm_config(struct pwm_chip *chip, struct pwm_device *pwm,
 
 	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));