LVDS has no signal on firefly-reload

[actionmask]

I have got device fb0 on my firefly-reload
root@linaro-alip:~# fbset

mode "1280x800"
geometry 1280 800 1280 800 32
timings 0 0 0 0 0 0 0
accel true
rgba 8/16,8/8,8/0,0/0
endmode

And
root@linaro-alip:~# cd /sys/class/drm/card0-LVDS-1/
root@linaro-alip:/sys/class/drm/card0-LVDS-1# cat status
connected
root@linaro-alip:/sys/class/drm/card0-LVDS-1# cat enabled
enabled
root@linaro-alip:/sys/class/drm/card0-LVDS-1# cat modes
1280x800p60
root@linaro-alip:/sys/class/drm/card0-LVDS-1#

I think lvds should work but I didn't get any signal with scope.
Could any one help me?

Here is my dts

#include "rk3288-firefly.dtsi"

/ {
model = "Firefly-RK3288";
compatible = "firefly,firefly-rk3288", "rockchip,rk3288";

    lvds_panel: lvds-panel {
            compatible ="auo,b101ew05","simple-panel";
            status = "okay";
            rockchip,data-mapping = "jeida";
            rockchip,data-width = <24>;
            rockchip,output = "lvds";
            ports {
                    panel_in_lvds: endpoint {
                            remote-endpoint = <&lvds_out_panel>;
                    };
            };
    };

};
&lvds {
status = "okay";
rockchip,grf = <&grf>;
avdd1v0-supply = <&vdd10_lcd>;
avdd1v8-supply = <&vcc18_lcd>;
avdd3v3-supply = <&vcca_33>;
rockchip,data-mapping = "jeida";
rockchip,data-width = <24>;
rockchip,output = "lvds";

    ports {
             lvds_out: port@1 {
                    reg = <1>;
                    #address-cells = <1>;
                    #size-cells = <0>;

                    lvds_out_panel: endpoint {
                        reg = <0>;
                            remote-endpoint = <&panel_in_lvds>;
                    };
            };
    };

};

&lvds_in {
/delete-node/ endpoint@0;
};

&vopb_out {
/delete-node/ endpoint@3;
};