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pwm: lpss: Allow duty cycle to be 0
A duty cycle is represented by values [0..<period>] which reflects [0%..100%]. 0% of the duty cycle means always off (logical "0") on output. Allow this in the driver. Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
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@ -107,8 +107,6 @@ static int pwm_lpss_config(struct pwm_chip *chip, struct pwm_device *pwm,
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base_unit = DIV_ROUND_CLOSEST_ULL(freq, c);
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if (duty_ns <= 0)
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duty_ns = 1;
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on_time_div = 255ULL * duty_ns;
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do_div(on_time_div, period_ns);
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on_time_div = 255ULL - on_time_div;
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