Commit 7a661c6f authored Jun 24, 2009 by Alan Cox Committed by Jesse Barnes Jun 29, 2009

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>

parent 503998ca

drivers/pci/quirks.c

+5 −0

Original line number	Diff line number	Diff line
		@@ -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.