Skip to content

Fix PWM Backlight

Backlight is connected to PM_C_GPIO_08:

image

  • what does this map to in DTS?
  • note that IRIS_RED, IRIS_GREEN and IRIS_BLUE LED outputs work, and they're on the same DTS node. They seem to be PWMs 0, 1 and 2 on &pm8350c_pwm.
  • I can export PWM 3 in userspace on pm8350c_pwm, but it doesn't have an effect on the backlight.