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| author | Stefan Wahren <wahrenst@gmx.net> | 2019-08-24 16:09:46 +0200 |
|---|---|---|
| committer | Thierry Reding <thierry.reding@gmail.com> | 2019-09-21 01:22:42 +0200 |
| commit | 4537e52a526698f503dcb151234414cfa46d534b (patch) | |
| tree | 02fc0999dd0085c95eb85db55331d3d6157eb4f6 /drivers/pwm/pwm-bcm2835.c | |
| parent | c79468b8955b4924b5aca858247395265201ac42 (diff) | |
| download | linux-4537e52a526698f503dcb151234414cfa46d534b.tar.gz linux-4537e52a526698f503dcb151234414cfa46d534b.tar.bz2 linux-4537e52a526698f503dcb151234414cfa46d534b.zip | |
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>
Diffstat (limited to 'drivers/pwm/pwm-bcm2835.c')
| -rw-r--r-- | drivers/pwm/pwm-bcm2835.c | 5 |
1 files changed, 1 insertions, 4 deletions
diff --git a/drivers/pwm/pwm-bcm2835.c b/drivers/pwm/pwm-bcm2835.c index f6fe0b922e1e..52763063c100 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)); |