serial: Add support for Advantech PCM-3614I/PCM-3618I serial expansion cards

Add support for Advantech PCM-3614I/PCM-3618I serial expansion cards

Advantech makes a variety of serial port expansion cards, including the
PCM-3614 and PCM-3618
(http://www.advantech.com/products/1-2JKLU5/PCM-3618/mod_5DF8DE5A-6B49-4429-BB2F-CB35FE1D168D.aspx).
They have a driver available which was forked from the kernel driver
ages ago and has not been maintained in quite some time, available at
http://support.advantech.com.tw/Support/DownloadSRDetail_New.aspx?SR_ID=1-1W8FZ5&Doc_Source=Download
Their driver added several features to aid in communications at higher
baud rates, but at normal serial port speeds, the standard 8250_pci
driver functions just fine. This patch adds the necessary PCI IDs to
recognize this card.

See bug 75681 (https://bugzilla.kernel.org/show_bug.cgi?id=75681)

Signed-off-by: Thomee Wright <TWright@TMCDesign.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/tty/serial/8250/8250_pci.c

@@ -1753,6 +1753,8 @@ pci_wch_ch353_setup(struct serial_private *priv,
 #define PCI_VENDOR_ID_ADVANTECH		0x13fe
 #define PCI_DEVICE_ID_INTEL_CE4100_UART 0x2e66
 #define PCI_DEVICE_ID_ADVANTECH_PCI3620	0x3620
+#define PCI_DEVICE_ID_ADVANTECH_PCI3618	0x3618
+#define PCI_DEVICE_ID_ADVANTECH_PCIf618	0xf618
 #define PCI_DEVICE_ID_TITAN_200I	0x8028
 #define PCI_DEVICE_ID_TITAN_400I	0x8048
 #define PCI_DEVICE_ID_TITAN_800I	0x8088
@@ -3890,6 +3892,13 @@ static struct pci_device_id serial_pci_tbl[] = {
 	{	PCI_VENDOR_ID_ADVANTECH, PCI_DEVICE_ID_ADVANTECH_PCI3620,
 		PCI_DEVICE_ID_ADVANTECH_PCI3620, 0x0001, 0, 0,
 		pbn_b2_8_921600 },
+	/* Advantech also use 0x3618 and 0xf618 */
+	{	PCI_VENDOR_ID_ADVANTECH, PCI_DEVICE_ID_ADVANTECH_PCI3618,
+		PCI_DEVICE_ID_ADVANTECH_PCI3618, PCI_ANY_ID, 0, 0,
+		pbn_b0_4_921600 },
+	{	PCI_VENDOR_ID_ADVANTECH, PCI_DEVICE_ID_ADVANTECH_PCIf618,
+		PCI_DEVICE_ID_ADVANTECH_PCI3618, PCI_ANY_ID, 0, 0,
+		pbn_b0_4_921600 },
 	{	PCI_VENDOR_ID_V3, PCI_DEVICE_ID_V3_V960,
 		PCI_SUBVENDOR_ID_CONNECT_TECH,
 		PCI_SUBDEVICE_ID_CONNECT_TECH_BH8_232, 0, 0,