AM5729: No /dev/fb0 node

Hi,

SDK: ti-processor-sdk-linux-rt-am57xx-evm-06.00.00.07-Linux-x86

Customer customized the AM5729 board. The device tree is based on am572x-idk, no /dev/fb0 node is generated after the system boot up.

Below is LCD configuration.

lcd_bl: backlight {
compatible = "pwm-backlight";
pwms = <&ecap0 0 50000 0>;
brightness-levels = <0 51 53 56 62 75 101 152 255>;
default-brightness-level = <8>;
};

lcd: display {
compatible = "panel-dpi";
/*
enable-gpios = <&gpio3 30 GPIO_ACTIVE_HIGH>;
backlight = <&lcd_bl>;*/
label = "lcd";

panel-timing {
clock-frequency = <33300000>;
hactive = <800>;
vactive = <480>;

hfront-porch = <210>;
hback-porch = <46>;
hsync-len = <20>;

vfront-porch = <22>;
vback-porch = <23>;
vsync-len = <10>;

hsync-active = <1>;
vsync-active = <1>;

de-active = <0>;
pixelclk-active = <0>;
};

port {
lcd_in: endpoint {
remote-endpoint = <&dpi_out>;
};
};
};

&dss {
status = "okay";
vdda_video-supply = <&ldoln_reg>;
ports {
#address-cells = <1>;
#size-cells = <0>;

port {
reg = <1>;

dpi_out: endpoint {
data-lines = <24>;
remote-endpoint = <&lcd_in>;
};
};
};
};