[Bug 294406] [NEW HARDWARE] AMD Phoenix SoC - 11 none@pci devices on Dell Inspiron 14 7445 2-in-1 (Ryzen 7 8840HS)

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=294406

            Bug ID: 294406
           Summary: [NEW HARDWARE] AMD Phoenix SoC - 11 none@pci devices
                    on Dell Inspiron 14 7445 2-in-1 (Ryzen 7 8840HS)
           Product: Base System
           Version: 15.0-RELEASE
          Hardware: amd64
                OS: Any
            Status: New
          Severity: Affects Only Me
          Priority: ---
         Component: kern
          Assignee: bugs@FreeBSD.org
          Reporter: anthony.katernoza@gmail.com

Created attachment 269610
  --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=269610&action=edit
ACPI, pciconf, dmesg logs and vmstat

My FreeBSD 15.0-RELEASE system is experiencing issues of random network
shutdown, severe mouse/keyboard latency and/or malfunction, and occasional
sudden crashes. The first two behaviors occur when typing on the keyboard at a
rate over ~1 key every half second, and significant usage (like typing out a
document at higher speeds) leads to keyboard and/or mouse-pad malfunction. 

While investigating this issue, I found a number of peculiar dmesg-logged
firmware errors related to the embedded controller. 

Firmware Error (ACPI): Could not resolve symbol [\134_SB.PCI0.LPC0.EC0],
AE_NOT_FOUND (20250807/dswload2-315)

Additionally, 11 AMD drivers are listed as none@pci, including the FCH LPC
Bridge, audio controllers, sensor fusion hardware, non-VGA display drivers, and
others. Other attempts at investigation 

Drivers with errors: 9x14e9/vendor=0x1022, 0x0000/vendor=0x0000 (there are 3
such driver issues), 0x790e/vendor=0x1022, 0x15c7/vendor=0x1022,
0x15e2/vendor=0x1022, 0x164a/vendor=0x1022, 0x14ec/vendor=0x1022, 0x1502/vendor
= 0x1022

Of other note is that interrupt rates of things like acpi0, atkbd0 and ig4iic0
are extremely low.

It is my suspicion that the DELL device is having issues mapping hardware to
the system either due to some BIOS issue (though I have updated my BIOS to
latest), or missing hexcodes in the FreeBSD drivers. 

All logs I have gathered regarding this issue, including ACPI, dmesg, pciconf
and vmstat logs, are included in this bug report. 

Thank you

-Anthony Katernoza

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