AM4378 LCD driver DTS

您好，

我用的是ti-processor-sdk-linux-am437x-evm-06.00.00.07，DEFCONFIG=tisdk_am437x-evm_defconfig，dtsfile :am437x-gp-evm.dts

我做了个测试，将
aliases {
     display0 = &lcd0;
   };
lcd0: display {
      compatible = "osddisplays,osd070t1718-19ts", "panel-dpi";
     label = "lcd";

     backlight = <&lcd_bl>

    panel-timing {

clock-frequency = <33000000>;
hactive = <800>;
vactive = <480>;
hfront-porch = <210>;
hback-porch = <16>;
hsync-len = <30>;
vback-porch = <10>;
vfront-porch = <22>;
vsync-len = <13>;
hsync-active = <0>;
vsync-active = <0>;
de-active = <1>;
pixelclk-active = <1>;

};

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

&dss {
     status = "ok";

    pinctrl-names = "default";
    pinctrl-0 = <&dss_pins>;

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

panel {
          compatible = "ti,tilcdc,panel";
          status = "okay";
          pinctrl-names = "default";
           pinctrl-0 = <&dss_pins>;
           panel-info {
           ac-bias = <255>;
          ac-bias-intrpt = <0>;
         dma-burst-sz = <16>;
         bpp = <32>;
          fdd = <0x80>;
         sync-edge = <0>;
         sync-ctrl = <1>;
         raster-order = <0>;
         fifo-th = <0>;
    };
display-timings {
          800x480p60 {
          clock-frequency = <33000000>;
          hactive = <800>;
         vactive = <480>;
          hfront-porch = <210>;
          hback-porch = <16>;
          hsync-len = <30>;
          vback-porch = <10>;
           vfront-porch = <22>;
          vsync-len = <13>;
          hsync-active = <0>;
          vsync-active = <0>;
            de-active = <1>;
          pixelclk-active = <1>;
      };
   };

 port {
      lcd_in: endpoint {
     remote-endpoint = <&dpi_out>;
         };
       };
};
&dss {
     status = "ok";

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

发现没有输出，我采用的是示波器直接看PCLK 波形的，是否还需要进行那些设置或者配置？或者在那些地方可以观测？

谢谢！

thoms