[SERIAL] SIIG 8-port serial boards support

This patch adds support for SIIG 8-port boards. These boards have 4 ports in
separate bars and another 4 ports in the single bar. Because of this strange
port arrangement these cards need special setup function. Fortunately no other
SIIG cards have more than 4 port, so this setup function could be used for them
too.
Signed-off-by: Andrey Panin <pazke@donpac.ru>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

drivers/serial/8250_pci.c

@@ -439,6 +439,20 @@ static int pci_siig_init(struct pci_dev *dev)
 	return -ENODEV;
 }
 
+static int pci_siig_setup(struct serial_private *priv,
+			  struct pciserial_board *board,
+			  struct uart_port *port, int idx)
+{
+	unsigned int bar = FL_GET_BASE(board->flags) + idx, offset = 0;
+
+	if (idx > 3) {
+		bar = 4;
+		offset = (idx - 4) * 8;
+	}
+
+	return setup_port(priv, port, bar, offset, 0);
+}
+
 /*
  * Timedia has an explosion of boards, and to avoid the PCI table from
  * growing *huge*, we use this function to collapse some 70 entries
@@ -748,7 +762,7 @@ static struct pci_serial_quirk pci_serial_quirks[] = {
 		.subvendor	= PCI_ANY_ID,
 		.subdevice	= PCI_ANY_ID,
 		.init		= pci_siig_init,
-		.setup		= pci_default_setup,
+		.setup		= pci_siig_setup,
 	},
 	/*
 	 * Titan cards
@@ -2141,6 +2155,15 @@ static struct pci_device_id serial_pci_tbl[] = {
 	{	PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_4S_20x_850,
 		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
 		pbn_b0_bt_4_921600 },
+	{	PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_8S_20x_550,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_b0_bt_8_921600 },
+	{	PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_8S_20x_650,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_b0_bt_8_921600 },
+	{	PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_8S_20x_850,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_b0_bt_8_921600 },
 
 	/*
 	 * Computone devices submitted by Doug McNash dmcnash@computone.com

include/linux/pci_ids.h

@@ -1670,6 +1670,9 @@
 #define PCI_DEVICE_ID_SIIG_2S1P_20x_550	0x2060
 #define PCI_DEVICE_ID_SIIG_2S1P_20x_650	0x2061
 #define PCI_DEVICE_ID_SIIG_2S1P_20x_850	0x2062
+#define PCI_DEVICE_ID_SIIG_8S_20x_550	0x2080
+#define PCI_DEVICE_ID_SIIG_8S_20x_650	0x2081
+#define PCI_DEVICE_ID_SIIG_8S_20x_850	0x2082
 #define PCI_SUBDEVICE_ID_SIIG_QUARTET_SERIAL	0x2050
 
 #define PCI_VENDOR_ID_RADISYS		0x1331