tree e71ab24f20b36762d9b6b2fc9565bdd848cbdd97
parent e12cc34527dcd945597c860c25aba92883a4a6a4
author Libin Yang <Libin.Yang@amd.com> 1218179011 +0800
committer Greg Kroah-Hartman <gregkh@suse.de> 1218673978 -0700

USB: quirk PLL power down mode

On some AMD 700 series southbridges, 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 ... this patch prevents them
from being enabled when ISO transfers are pending.

Signed-off-by: Crane Cai <crane.cai@amd.com>
Signed-off-by: Libin Yang <libin.yang@amd.com>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>