Hi!

This patch add support for the Decision PCCOM 4 (1) ports pci cards.
The patch was made and tested on a 2.2.19 kernel with the 5.0.5
serial driver.

bye,
luca

(1) 
Serial controller: Decision Computer International Co. PCCOM4 (rev 02) (prog-if 02 [16550])
Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
Status: Cap- 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
Interrupt: pin A routed to IRQ 5
Region 0: Memory at e9002000 (32-bit, non-prefetchable)
Region 1: I/O ports at e400
Region 3: I/O ports at e800