[PATCH] USB: quirk PLL power down mode on Ubuntu 8.10

[Zhang, Harry]

Hi, kernel team

On some AMD 700 series Southbridge, ISO OUT transfers (such as audio 
playback through speakers) on the USB OHCI controller may be corrupted 
when an A-Link express power saving feature is active.

PLL power down mode in conjunction with link power management feature
L1 being enabled is the bad combination. 
The attached patch prevents them from being enabled when ISO transfers 
are pending.

Here is the upstream git link:
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commi
t;h=ab1666c1364a209e6141d7c14e47a42b5f00eca2

Here is the bug link:
https://bugs.launchpad.net/ubuntu/+bug/257843

Best regards,
Harry
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