Commit b5c050c7 authored Jan 28, 2017 by Andy Shevchenko Committed by Thierry Reding Jan 30, 2017

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>

parent 684309e5

drivers/pwm/pwm-lpss.c

+0 −2

Original line number	Diff line number	Diff line
		@@ -107,8 +107,6 @@ static int pwm_lpss_config(struct pwm_chip chip, struct pwm_device pwm,

		base_unit = DIV_ROUND_CLOSEST_ULL(freq, c);

		if (duty_ns <= 0)
		duty_ns = 1;
		on_time_div = 255ULL * duty_ns;
		do_div(on_time_div, period_ns);
		on_time_div = 255ULL - on_time_div;