I am trying to enable Winstar TFT display on Olimex Lime2 board under the kernel 5.4. Display spec is here:
https://www.winstar.com.tw/products/tft-lcd/ips-tft/lvds-tft.html
Up to the day we've been using the legacy kernel 3.4 and the display worked fine -- the u-boot was compiled with the settings (CONFIG_VIDEO_LCD_MODE, CONFIG_VIDEO_LCD_POWER etc) suggested here:
When I try to use the same settings in the mainline sources of armbian, the display does not work. I've enabled backlight with a DTS overlay and the backlight works but the display stays b