]> pilppa.com Git - linux-2.6-omap-h63xx.git/commit
smsc-ircc2: skip preconfiguration for PNP devices
authorBjorn Helgaas <bjorn.helgaas@hp.com>
Wed, 27 Jun 2007 21:09:50 +0000 (14:09 -0700)
committerLinus Torvalds <torvalds@woody.linux-foundation.org>
Thu, 28 Jun 2007 18:34:53 +0000 (11:34 -0700)
commit7c31d2f59c14191c3251f18ad1782fe6692f0c33
tree883df65c2943ebb70befdc1962bc1f02809915ec
parent80581c43d02f66afb2cafa44bef710a2549a1748
smsc-ircc2: skip preconfiguration for PNP devices

If we rely on the device resources from PNPBIOS, we also have to rely on
the BIOS to configure any bridges on the way to the device.

Using the PNPBIOS resources but changing the configuration of a bridge
behind the back of the firmware is likely to make things inconsistent.

This patch addresses part of the 2.6.22 regression:
    "no irda0 interface (2.6.21 was OK), smsc does not find chip"
It fixes smsc-ircc2 PNP device detection on HP nx5000 laptops.
Other laptops, including HP nc6000, HP nc8000, HP nw8000, and Toshiba
Portege 4000, still need PNP quirks to make this work.

With "smsc-ircc2.nopnp", we do the legacy device probe, including manual
bridge preconfiguration, as before.

Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Cc: Samuel Ortiz <samuel@sortiz.org>
Acked-by: "Linus Walleij (LD/EAB)" <linus.walleij@ericsson.com>
Cc: Andrey Borzenkov <arvidjaar@mail.ru>
Cc: Michal Piotrowski <michal.k.k.piotrowski@gmail.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Adam Belay <ambx1@neo.rr.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
drivers/net/irda/smsc-ircc2.c