From: Ming Lei Date: Wed, 31 Aug 2011 02:45:46 +0000 (+0800) Subject: firewire: ohci: add no MSI quirk for O2Micro controller X-Git-Tag: firefly_0821_release~7541^2~2739 X-Git-Url: http://plrg.eecs.uci.edu/git/?a=commitdiff_plain;h=3917a8efa50bc38ef2f2194a5e35c2062640feed;p=firefly-linux-kernel-4.4.55.git firewire: ohci: add no MSI quirk for O2Micro controller commit f39aa30d7741f40ad964341e9243dbbd7f8ff057 upstream. 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 Signed-off-by: Stefan Richter Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/firewire/ohci.c b/drivers/firewire/ohci.c index ebb897329c1e..ee76c8ec72f6 100644 --- a/drivers/firewire/ohci.c +++ b/drivers/firewire/ohci.c @@ -291,6 +291,9 @@ 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},