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authorLinus Torvalds <torvalds@linux-foundation.org>2008-12-02 15:53:10 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2008-12-02 15:53:10 -0800
commite2e29831cc463f4be61d4e36b8699ae7e071a685 (patch)
treed5c40f6a328e07edb2db7186bef3a6c932c404fb /drivers/ide/amd74xx.c
parent9a689bc4f09f8b89f88e65b1b0a2ea780b4f28de (diff)
parent95964018d53f479529dfdc2b46fe30c0a14a00e0 (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/bart/ide-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/bart/ide-2.6: alim15x3: fix sparse warning ide: remove dead code from drive_is_ready() ide: fix build for DEBUG_PM ide: respect current DMA setting during resume ide: add SAMSUNG SP0822N with firmware WA100-10 to ivb_list[] amd74xx: workaround unreliable AltStatus register for nVidia controllers ide: fix the ide_release_lock imbalance
Diffstat (limited to 'drivers/ide/amd74xx.c')
-rw-r--r--drivers/ide/amd74xx.c11
1 files changed, 10 insertions, 1 deletions
diff --git a/drivers/ide/amd74xx.c b/drivers/ide/amd74xx.c
index 81ec73134ed..c6bcd3014a2 100644
--- a/drivers/ide/amd74xx.c
+++ b/drivers/ide/amd74xx.c
@@ -3,7 +3,7 @@
* IDE driver for Linux.
*
* Copyright (c) 2000-2002 Vojtech Pavlik
- * Copyright (c) 2007 Bartlomiej Zolnierkiewicz
+ * Copyright (c) 2007-2008 Bartlomiej Zolnierkiewicz
*
* Based on the work of:
* Andre Hedrick
@@ -263,6 +263,15 @@ static int __devinit amd74xx_probe(struct pci_dev *dev, const struct pci_device_
d.udma_mask = ATA_UDMA5;
}
+ /*
+ * It seems that on some nVidia controllers using AltStatus
+ * register can be unreliable so default to Status register
+ * if the device is in Compatibility Mode.
+ */
+ if (dev->vendor == PCI_VENDOR_ID_NVIDIA &&
+ ide_pci_is_in_compatibility_mode(dev))
+ d.host_flags |= IDE_HFLAG_BROKEN_ALTSTATUS;
+
printk(KERN_INFO "%s %s: UDMA%s controller\n",
d.name, pci_name(dev), amd_dma[fls(d.udma_mask) - 1]);