Linux/AM4379: am4379 Add 480 × 854 LCD display panel，How to modify the kernel? The device tree is configured, the backlight driver is configured, but the screen is still black.

Part Number:AM4379

Tool/software: Linux

lcd0: display {

  compatible = "osddisplays,osd057T0559-34ts", "panel-dpi";

  label = "lcd";

  panel-timing {

   clock-frequency = <33000000>;

   hactive = <480>;

   vactive = <854>;

   hfront-porch = <100>;

   hback-porch = <50>;

   hsync-len = <10>;

   vback-porch = <16>;

   vfront-porch = <20>;

   vsync-len = <4>;

   hsync-active = <0>;

   vsync-active = <0>;

   de-active = <1>;

   pixelclk-active = <1>;

  };