How to cinfig display DP output lane number

[user98631]

tegra194-p2888-0001-p2822-0000.dts (357.5 KB)

[WayneWWW]

nvidia,typec-port = [00];

This one is still in your device tree, could you remove it first?

[user98631]

tegra194-p2888-0001-p2822-0000.dts (357.4 KB)
dp-4.TXT (74.7 KB)

Hi, WayneWWW
The attachments are the dts without any “nvidia,typec-port” and dmesg log.

[user98631]

Hi, WayneWWW:
How to config eDP?

[user98631]

Hi, WayneWWW:
Our DP/eDP connection is used in inter-chip case, and our hardware engineer suggest that we had better config to eDP. And our pull-down/pull-up on aux had been removed.
Can you help to config eDp?
Thanks a lot.

[WayneWWW]

Hi,

eDP configuration is not standard one as DP case. And we don’t have one enabled for AGX.

But I have one that was used for TX1.

You can refer to " tegra210-jetson-cv-p2597-2180-a00-auo-1080p-edp.dts" in Nano/TX1 source code.

Also, this needs to check the driver code. Directly adding device tree may not directly make it work.

[user98631]

Hi, WayneWWW:
If we do not pull up AUX- to 3.3V on the device side, but the device is placed very close to XAVIER, can we still use DP config?

[user98631]

dp-5.TXT (77.6 KB)

Hi, WayneWWW:
In the log-5, there many error:
[ 1.886467] tegradc 15210000.nvdisplay: dp: aux write got error (0x10000100)

Can you help what reason may cause this error?

[user98631]

Hi, WayneWWW:
While the error “dp: aux write got error (0x10000100)” appears periodically, the aux wave is like the pulse in the picture.
Is the aux signal correct?