Commit f39aa30d authored Aug 31, 2011 by Ming Lei Committed by Stefan Richter Sep 16, 2011

firewire: ohci: add no MSI quirk for O2Micro controller

This fixes https://bugs.launchpad.net/ubuntu/+source/linux/+bug/801719

 .

An O2Micro PCI Express FireWire controller,
"FireWire (IEEE 1394) [0c00]: O2 Micro, Inc. Device [1217:11f7] (rev 05)"
which is a combination device together with an SDHCI controller and some
sort of storage controller, misses SBP-2 status writes from an attached
FireWire HDD.  This problem goes away if MSI is disabled for this
FireWire controller.

The device reportedly does not require QUIRK_CYCLE_TIMER.

Signed-off-by: Ming Lei <ming.lei@canonical.com>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de> (amended changelog)
Cc: <stable@kernel.org>

parent b6fd41e2

drivers/firewire/ohci.c

+3 −0

Original line number	Diff line number	Diff line
		@@ -290,6 +290,9 @@ static const struct {
		{PCI_VENDOR_ID_NEC, PCI_ANY_ID, PCI_ANY_ID,
		QUIRK_CYCLE_TIMER},

		{PCI_VENDOR_ID_O2, PCI_ANY_ID, PCI_ANY_ID,
		QUIRK_NO_MSI},

		{PCI_VENDOR_ID_RICOH, PCI_ANY_ID, PCI_ANY_ID,
		QUIRK_CYCLE_TIMER},

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