As question above, I get a trouble when approach GPIO in iMX6UL-EVK board.
After find out location of GPIO 25 pin, I try to configure it by:
And I test with a red LED. But LED is still no light. (LED is working good with other device and GPIO pin is exactly. )
Does this problem is belong to declare GPIO pin devicetree ? And what should I do now ?
Thank you so much,