Hi,
we want to use the HDMI Port of the Jetson Xavier AGX on the devkit as a Display Port Connector on a Custom board.
We use a Jetson AGX Industrial
we changed following things in the devicetree:
in tegra194-p2822-disp.dtsi
before:
&head0 {
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 = <0x3>;
nvidia,fb-win = <0>;
nvidia,dc-connector = <&sor2>;
nvidia,dc-flags = <TEGRA_DC_FLAG_ENABLED>;
avdd_hdmi-supply = <&p2888_spmic_sd0>; / 1v0 /
avdd_hdmi_pll-supply = <&p2888_spmic_sd1>; / 1v8 /
vdd_hdmi_5v0-supply = <&p2822_vdd_hdmi_5v0>; / 5v0 */
after:
&head0 {
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 = <0x3>;
nvidia,fb-win = <0>;
nvidia,dc-connector = <&sor2>;
nvidia,dc-flags = <TEGRA_DC_FLAG_ENABLED>;
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>;
and
before:
&sor2 {
status = “okay”;
nvidia,active-panel = <&sor2_hdmi_display>;
};&sor2_hdmi_display {
status = “okay”;
disp-default-out {
nvidia,out-flags = <TEGRA_DC_OUT_HOTPLUG_LOW>;
};
};
after:
&sor2 {
status = “okay”;
nvidia,active-panel = <&sor2_dp_display>;
};&sor2_dp_display {
status = “okay”;
nvidia,is_ext_dp_panel = <1>;
};
at the other dp ports the dp_aux pin triggers. For the SOR2 the dp_aux pin does not work and the Monitor does not connect at all.
What do we have to change?