firewire: fw-ohci: PPC PMac platform code
authorStefan Richter <stefanr@s5r6.in-berlin.de>
Sat, 1 Mar 2008 01:42:56 +0000 (02:42 +0100)
committerStefan Richter <stefanr@s5r6.in-berlin.de>
Thu, 13 Mar 2008 23:56:58 +0000 (00:56 +0100)
commitea8d006b91ac58ec5a0862d09e0b629db399517f
treec6f848d1ed3e7d71fd23dcee975d3449bcb7932b
parentefbf390a2d940315efff174455243e61f23c03b9
firewire: fw-ohci: PPC PMac platform code

Copied from ohci1394.c.  This code is necessary to prevent machine check
exceptions when reloading or resuming the driver.

Tested on a 1st generation PowerBook G4 Titanium, which also needs the
pci_probe() hunk.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>

I was able to reproduce the system exception on resume with a 3rd-gen
Titanium PowerBook G4 667, and this patch does let the system resume
successfully now.

Not quite clear if there was possibly an updated version coming using
pci_enable_device() instead of the pair of pmac_call_feature() calls,
but either way, this is a definite must-have, at least for older ppc
macs -- my Aluminum PowerBook G4/1.67 suspends and resumes without this
patch just fine.

Signed-off-by: Jarod Wilson <jwilson@redhat.com>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
drivers/firewire/fw-ohci.c