No signal from HDMI_DP1_TXD3

Hi All,
We made a customized carrier board AGX Xavier Industrial and use sor1 as hdmi output.
It connected with a FPDLINK III chip ds90ub949.
I found that there is no signal output from HDMI_DP1_TXDN/P3.

The connect path is head2->sor1.

Below are the changes we made in devicetree.

&head2 {
	status = "okay";
	nvidia,fb-bpp = <32>;
	nvidia,fbmem-size = <265420800>; /* 8K (7680*4320) 32bpp double buffered */
	nvidia,fb-flags = <TEGRA_FB_FLIP_ON_PROBE>;
	win-mask = <0x30>;
	nvidia,fb-win = <4>;
	nvidia,dc-connector = <&sor1>;
	nvidia,dc-flags = <TEGRA_DC_FLAG_ENABLED>;
	avdd_hdmi-supply = <&p2888_spmic_sd0>; /* 1v0 */
	avdd_hdmi_pll-supply = <&p2888_spmic_sd1>; /* 1v8 */
	//vdd-dp-pwr-supply = <&p2888_spmic_sd0>;
	//avdd-dp-pll-supply = <&p2888_spmic_sd1>;
	//vdd-edp-sec-mode-supply = <&battery_reg>;
	//vdd-dp-pad-supply = <&battery_reg>;
	//////
	vdd_hdmi_5v0-supply = <&p2822_vdd_hdmi_5v0>;
};

&sor1 {
	status = "okay";
	nvidia,active-panel = <&sor1_hdmi_display>;
	nvidia,xbar-ctrl = <0x0 0x1 0x2 0x3 0x4>;
};

&sor1_hdmi_display {
	status = "okay";
	//disp-out {
	disp-default-out{
		nvidia,out-flags = <TEGRA_DC_OUT_HOTPLUG_LOW>;
	};
};

I also dump the devicetree from device and the kernel log.
dest.dtsi.txt (411.3 KB)

kernel.log (118.6 KB)

Below are the schematic.


Is there any setting I need to set to fix this issue!?

Software log does not show anything. Seems a hardware issue.

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