Dear Maintainer

Please consider adding a backport patch to support SystemBase Multi I/O
PCI cards in the Debian kernel.

The upstream patch was authored by Michael Walle and adds the necessary
PCI IDs and configurations for the 8250 serial driver. This is a
backport of the following upstream
commit/patch:https://lore.kernel.org/all/20260225081739.946723-1-mwalle@kernel.org/

I have generated the unified diff from the backported commit and
attached it to this email.

It applies cleanly to the Debian kernel patch series.