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

Message

Marco Felsch Sept. 25, 2020, 3:53 p.m. UTC

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(-)