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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>
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1 changed files with 1 additions and 4 deletions
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@ -72,11 +72,8 @@ static int bcm2835_pwm_config(struct pwm_chip *chip, struct pwm_device *pwm,
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scaler = DIV_ROUND_CLOSEST(NSEC_PER_SEC, rate);
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if (period_ns <= MIN_PERIOD) {
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dev_err(pc->dev, "period %d not supported, minimum %d\n",
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period_ns, MIN_PERIOD);
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if (period_ns <= MIN_PERIOD)
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return -EINVAL;
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}
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writel(DIV_ROUND_CLOSEST(duty_ns, scaler),
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pc->base + DUTY(pwm->hwpwm));
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