can: add support for CAN interface cards based on the PLX90xx PCI bridge

This driver is for CAN interface cards based on the PLX90xx PCI bridge.
Driver supports now:
 - Adlink PCI-7841/cPCI-7841 card (http://www.adlinktech.com/)
 - Adlink PCI-7841/cPCI-7841 SE card
 - Marathon CAN-bus-PCI card (http://www.marathon.ru/)
 - TEWS TECHNOLOGIES TPMC810 card (http://www.tews.com/)

Changes since v1:
 - Added some defines for static inline int plx_pci_check_sja1000(...)
 - static struct pci_device_id plx_pci_tbl[] replaced by
   static DEFINE_PCI_DEVICE_TABLE(plx_pci_tbl)
 - Typo fixed

Signed-off-by: Pavel Cheblakov <P.B.Cheblakov@inp.nsk.su>
Acked-by: Wolfgang Grandegger <wg@grandegger.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/can/sja1000/Kconfig b/drivers/net/can/sja1000/Kconfig
index 4c67492..9e277d6 100644
--- a/drivers/net/can/sja1000/Kconfig
+++ b/drivers/net/can/sja1000/Kconfig
@@ -44,4 +44,16 @@
 	  This driver is for the the PCIcanx and PCIcan cards (1, 2 or
 	  4 channel) from Kvaser (http://www.kvaser.com).
 
+config CAN_PLX_PCI
+	tristate "PLX90xx PCI-bridge based Cards"
+	depends on PCI
+	---help---
+	  This driver is for CAN interface cards based on
+	  the PLX90xx PCI bridge.
+	  Driver supports now:
+	   - Adlink PCI-7841/cPCI-7841 card (http://www.adlinktech.com/)
+	   - Adlink PCI-7841/cPCI-7841 SE card
+	   - Marathon CAN-bus-PCI card (http://www.marathon.ru/)
+	   - TEWS TECHNOLOGIES TPMC810 card (http://www.tews.com/)
+
 endif