tree d8313c4007896c78dfe05884a7740cb048ffd62a
parent 08f1d0b99f4e2203935d86640a7fec5c233b777c
author Mauro Carvalho Chehab <mchehab@infradead.org> 1142639672 -0300
committer Linus Torvalds <torvalds@g5.osdl.org> 1142960042 -0800

V4L/DVB (3545): Fixed no_overlay option and quirks on saa7134 driver

Some chipsets have several problems when pci to pci transfers are activated
on overlay mode. the option no_overlay allows disabling such feature of
the driver, in favor of keeping the system stable.
The default is to use pcipci_fail flag defined on drivers/pci/quirks.c.
It also allows the user to override it by forcing disable overlay or forcing
enable. Forcing enable may generate PCI transfer corruption, including disk
mass corruption, so should be used with care.
Added a text description to this option and make messages looks the same at
both bttv and saa7134 drivers.

Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>