From mboxrd@z Thu Jan 1 00:00:00 1970 From: Andy Shevchenko Subject: [PATCH v2 2/4] pwm: lpss: Allow duty cycle to be 0 Date: Mon, 2 Jan 2017 11:16:45 +0200 Message-ID: <20170102091647.86910-3-andriy.shevchenko@linux.intel.com> References: <20170102091647.86910-1-andriy.shevchenko@linux.intel.com> Return-path: Received: from mga05.intel.com ([192.55.52.43]:4750 "EHLO mga05.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755228AbdABJRw (ORCPT ); Mon, 2 Jan 2017 04:17:52 -0500 In-Reply-To: <20170102091647.86910-1-andriy.shevchenko@linux.intel.com> Sender: linux-pwm-owner@vger.kernel.org List-Id: linux-pwm@vger.kernel.org To: Thierry Reding , linux-pwm@vger.kernel.org, Mika Westerberg , Linus Torvalds , Ilkka Koskinen Cc: Andy Shevchenko A duty cycle is represented by values [0..] 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 Signed-off-by: Andy Shevchenko --- drivers/pwm/pwm-lpss.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/drivers/pwm/pwm-lpss.c b/drivers/pwm/pwm-lpss.c index 8642feeb8abd..ffa01ab907a6 100644 --- a/drivers/pwm/pwm-lpss.c +++ b/drivers/pwm/pwm-lpss.c @@ -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; -- 2.11.0