Commit 320cfa6c authored Jan 29, 2012 by Stefan Richter

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 <kontrapunktstefan@googlemail.com>
Cc: 2.6.36+ <stable@vger.kernel.org>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>

parent d1bb399a

drivers/firewire/ohci.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -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},

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