From: Stefan Richter Date: Sun, 29 Jan 2012 11:41:15 +0000 (+0100) Subject: firewire: ohci: disable MSI on Ricoh controllers X-Git-Tag: upstream/snapshot3+hdmi~8209^2 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=320cfa6ce0b3dc794fedfa4bae54c0f65077234d;p=platform%2Fadaptation%2Frenesas_rcar%2Frenesas_kernel.git firewire: ohci: disable MSI on Ricoh controllers The PCIe device FireWire (IEEE 1394) [0c00]: Ricoh Co Ltd FireWire Host Controller [1180:e832] (prog-if 10 [OHCI]) is unable to access attached FireWire devices when MSI is enabled but works if MSI is disabled. http://www.mail-archive.com/alsa-user@lists.sourceforge.net/msg28251.html Hence add the "disable MSI" quirks flag for this device, or in fact for safety and simplicity for all current (R5U230, R5U231, R5U240) and future Ricoh PCIe 1394 controllers. Reported-by: Stefan Thomas Cc: 2.6.36+ Signed-off-by: Stefan Richter --- diff --git a/drivers/firewire/ohci.c b/drivers/firewire/ohci.c index 21250ec..7f5f0da 100644 --- a/drivers/firewire/ohci.c +++ b/drivers/firewire/ohci.c @@ -303,7 +303,7 @@ static const struct { QUIRK_NO_MSI}, {PCI_VENDOR_ID_RICOH, PCI_ANY_ID, PCI_ANY_ID, - QUIRK_CYCLE_TIMER}, + QUIRK_CYCLE_TIMER | QUIRK_NO_MSI}, {PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_TSB12LV22, PCI_ANY_ID, QUIRK_CYCLE_TIMER | QUIRK_RESET_PACKET | QUIRK_NO_1394A},