From: Ming Lei <ming.lei@canonical.com>
Date: Wed, 31 Aug 2011 02:45:46 +0000 (+0800)
Subject: firewire: ohci: add no MSI quirk for O2Micro controller
X-Git-Tag: v3.1-rc7~26^2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f39aa30d7741f40ad964341e9243dbbd7f8ff057;p=pandora-kernel.git

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>
---

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