firewire: fw-ohci: disable PHY packet reception into AR context

We want the rcvPhyPkt bit in LinkControl off before we start using the
chip. However, the spec says that the reset value of it is undefined.
Hence switch it explicitly off.

https://bugzilla.redhat.com/show_bug.cgi?id=244576#c48 shows that for
example the nForce2 integrated FireWire controller seems to have it on
by default.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Signed-off-by: Jarod Wilson <jwilson@redhat.com>

+2
+2
drivers/firewire/fw-ohci.c
··· 1473 1473 reg_write(ohci, OHCI1394_HCControlClear, 1474 1474 OHCI1394_HCControl_noByteSwapData); 1475 1475 1476 + reg_write(ohci, OHCI1394_LinkControlClear, 1477 + OHCI1394_LinkControl_rcvPhyPkt); 1476 1478 reg_write(ohci, OHCI1394_LinkControlSet, 1477 1479 OHCI1394_LinkControl_rcvSelfID | 1478 1480 OHCI1394_LinkControl_cycleTimerEnable |