via82cxxx: vx855 is a single channel controller

Based on commit e4d866c for pata_via host driver
(PCI ID was later changed by commit 5993856).

Update my credits while at it.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 13 insertions, 6 deletions

diff --git a/drivers/ide/via82cxxx.c b/drivers/ide/via82cxxx.c
index 028de26a25f..29f3be311f8 100644
--- a/drivers/ide/via82cxxx.c
+++ b/drivers/ide/via82cxxx.c
@@ -6,7 +6,7 @@
  *   vt8235, vt8237, vt8237a
  *
  * Copyright (c) 2000-2002 Vojtech Pavlik
- * Copyright (c) 2007 Bartlomiej Zolnierkiewicz
+ * Copyright (c) 2007-2010 Bartlomiej Zolnierkiewicz
  *
  * Based on the work of:
  *      Michel Aubry
@@ -55,6 +55,10 @@
 #define VIA_BAD_ID              0x10 /* Has wrong vendor ID (0x1107) */
 #define VIA_BAD_AST             0x20 /* Don't touch Address Setup Timing */
 
+enum {
+        VIA_IDFLAG_SINGLE = (1 << 1), /* single channel controller */
+};
+
 /*
  * VIA SouthBridge chips.
  */
@@ -436,10 +440,13 @@ static int __devinit via_init_one(struct pci_dev *dev, const struct pci_device_i
                 via_clock = 33333;
         }
 
-        if (idx == 0)
-                d.host_flags |= IDE_HFLAG_NO_AUTODMA;
-        else
+        if (idx == 1)
                 d.enablebits[1].reg = d.enablebits[0].reg = 0;
+        else
+                d.host_flags |= IDE_HFLAG_NO_AUTODMA;
+
+        if (idx == VIA_IDFLAG_SINGLE)
+                d.host_flags |= IDE_HFLAG_SINGLE;
 
         if ((via_config->flags & VIA_NO_UNMASK) == 0)
                 d.host_flags |= IDE_HFLAG_UNMASK_IRQS;
@@ -475,7 +482,7 @@ static const struct pci_device_id via_pci_tbl[] = {
         { PCI_VDEVICE(VIA, PCI_DEVICE_ID_VIA_82C576_1),  0 },
         { PCI_VDEVICE(VIA, PCI_DEVICE_ID_VIA_82C586_1),  0 },
         { PCI_VDEVICE(VIA, PCI_DEVICE_ID_VIA_CX700_IDE), 0 },
-        { PCI_VDEVICE(VIA, PCI_DEVICE_ID_VIA_VX855_IDE), 0 },
+        { PCI_VDEVICE(VIA, PCI_DEVICE_ID_VIA_VX855_IDE), VIA_IDFLAG_SINGLE },
         { PCI_VDEVICE(VIA, PCI_DEVICE_ID_VIA_6410),      1 },
         { PCI_VDEVICE(VIA, PCI_DEVICE_ID_VIA_SATA_EIDE), 1 },
         { 0, },
@@ -504,6 +511,6 @@ static void __exit via_ide_exit(void)
 module_init(via_ide_init);
 module_exit(via_ide_exit);
 
-MODULE_AUTHOR("Vojtech Pavlik, Michel Aubry, Jeff Garzik, Andre Hedrick");
+MODULE_AUTHOR("Vojtech Pavlik, Bartlomiej Zolnierkiewicz, Michel Aubry, Jeff Garzik, Andre Hedrick");
 MODULE_DESCRIPTION("PCI driver module for VIA IDE");
 MODULE_LICENSE("GPL");