[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>

2 files changed, 27 insertions, 1 deletions

diff --git a/drivers/serial/8250_pci.c b/drivers/serial/8250_pci.c
index 2a912153321e..bb9ec28ccc2b 100644
--- a/drivers/serial/8250_pci.c
+++ b/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
diff --git a/include/linux/pci_ids.h b/include/linux/pci_ids.h
index b0b908f583c5..92a619ba163f 100644
--- a/include/linux/pci_ids.h
+++ b/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