I am working on DSI LCD bringup on a custom carrier board. And I have a very weird situation now.
After modified the panel-s-wuxge-8-0.dtsi, tegra186-quill-p3489-0888-a00-00-base.dts and panel-s-wuxga-8-0.c, I got half of the panel showing correct content:
But the backlight is not working, the backlight in the picture above is from a dc input.
Using “dmesg”, I found there is an error: display reset gpio invalid. Because we don’t design a reset gpio for LCD panel, I commented relevant code in the driver. Backlight from TX2 is working after changes in driver, but nothing is shown on the panel.
Does anyone have advise for such situation?
Thanks in advance.