Hi,
Tried flashing two Orin Devkits to 36.3.0 (stock FW) and back to 35.x with different USB-C cables and, after successful flash, 36.3.0 usually prints this message “VIN_SYS_5V0: Underflow of regulator enable count” to serial non-stop. filling up syslog. Older OS never does that. If I unplug USB-C, then it stops and works normally. On some reboots this message does not appear at first, but if I re-plug USB-C, then it reappears.
I hesitate to upgrade all my Orins to 36.3.0 until this is fixed.
Thank you
please refer to this post.
The patch that you suggested is for function tegra_xhci_id_work,
but I do not see this function being called at all ( I added extra log)
May be because the post that you suggested is about USB type A, but I have problem with USB-C
I attached log from journalctl when I connected and disconnected USB-C cable.
It prints
Jul 02 20:16:28 orinX kernel: usb usb2-port2: config error
Jul 02 20:16:30 orinX kernel: tegra-xudc 3550000.usb: PLS = Inactive. Toggle VBUS
Jul 02 20:16:30 orinX kernel: VIN_SYS_5V0: Underflow of regulator enable count
and other messages.
usb_c_plug_log_to_send.txt (8.5 KB)
Was this issue resolved ?? I am having a similar issue as well ???