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authorAlan Cox <alan@linux.intel.com>2009-06-24 17:02:27 +0200
committerJesse Barnes <jbarnes@virtuousgeek.org>2009-06-29 21:14:04 +0200
commit7a661c6f1082693a7e9627e9ad2d1546a9337fdc (patch)
treee6b30aeeb9e42c89861f128c3d5e634675fde512 /drivers/pci
parentPCI: fix kernel-doc warnings (diff)
downloadlinux-7a661c6f1082693a7e9627e9ad2d1546a9337fdc.tar.xz
linux-7a661c6f1082693a7e9627e9ad2d1546a9337fdc.zip
PCI: More PATA quirks for not entering D3
The ALi loses some state if it goes into D3. Unfortunately even with the chipset documents I can't figure out how to restore some bits of it. The VIA one saves/restores apparently fine but the ACPI _GTM methods break on some platforms if we do this and this causes cable misdetections. These are both effectively regressions as historically nothing matched the devices and then decided not to bind to them. Nowdays something is binding to all sorts of devices and a result they get dumped into D3. Signed-off-by: Alan Cox <alan@linux.intel.com> Acked-by: Jeff Garzik <jeff@garzik.org> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Diffstat (limited to 'drivers/pci')
-rw-r--r--drivers/pci/quirks.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
index 56552d74abea..06b965623962 100644
--- a/drivers/pci/quirks.c
+++ b/drivers/pci/quirks.c
@@ -1058,6 +1058,11 @@ static void __devinit quirk_no_ata_d3(struct pci_dev *pdev)
}
DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_SERVERWORKS, PCI_ANY_ID, quirk_no_ata_d3);
DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_ATI, PCI_ANY_ID, quirk_no_ata_d3);
+/* ALi loses some register settings that we cannot then restore */
+DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_AL, PCI_ANY_ID, quirk_no_ata_d3);
+/* VIA comes back fine but we need to keep it alive or ACPI GTM failures
+ occur when mode detecting */
+DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_VIA, PCI_ANY_ID, quirk_no_ata_d3);
/* This was originally an Alpha specific thing, but it really fits here.
* The i82375 PCI/EISA bridge appears as non-classified. Fix that.