[PATCH v2 0/5] PWM i.MX27 fix disabled state for inverted signals

From: Marco Felsch <m.felsch@pengutronix.de>
To: thierry.reding@gmail.com, u.kleine-koenig@pengutronix.de,
	lee.jones@linaro.org, shawnguo@kernel.org,
	s.hauer@pengutronix.de, festevam@gmail.com, linux-imx@nxp.com,
	Anson.Huang@nxp.com, michal.vokac@ysoft.com,
	l.majewski@majess.pl
Cc: linux-pwm@vger.kernel.org, kernel@pengutronix.de,
	linux-arm-kernel@lists.infradead.org
Subject: [PATCH v2 0/5] PWM i.MX27 fix disabled state for inverted signals
Date: Fri, 25 Sep 2020 17:53:25 +0200	[thread overview]
Message-ID: <20200925155330.32301-1-m.felsch@pengutronix.de> (raw)

Hi,

this small series fixes the pwm disabled behaviour in case of an
inverted pwm signal. The current state is that in such a case the pwm
signal goes to 0V which means logical '1' for inverted pwm signals. IMO
this is wrong and should be fixed.

I've tested my patches on a custom imx6 board which uses the pwm as
backlight.

Each patch has a dedicated changelog so I skip it here.

Comments and testers are welcome :)

Regards,
  Marco

Marco Felsch (5):
  pwm: imx27: enable clock unconditional for register access
  pwm: imx27: move constant PWMCR register values into probe
  pwm: imx27: reset the PWM if it is not running
  pwm: imx27: fix disable state for inverted PWMs
  pwm: imx27: wait till the duty cycle is applied

 drivers/pwm/pwm-imx27.c | 166 +++++++++++++++++++++++++++++-----------
 1 file changed, 120 insertions(+), 46 deletions(-)

-- 
2.20.1