ata: Fix DVD not dectected at some platform with Wellsburg PCH
authorYouquan Song <youquan.song@intel.com>
Fri, 12 Jul 2013 01:15:57 +0000 (21:15 -0400)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Sun, 4 Aug 2013 08:50:55 +0000 (16:50 +0800)
commitb1cd27dc900443c2f40abe30d7c97c153b5e3e7d
tree9ae8958c3ea1231369d2a4cd26c9416772de6a7f
parent5a4de615144fd87589783402cab3ecbc29865fc8
ata: Fix DVD not dectected at some platform with Wellsburg PCH

commit eac27f04a71e1f39f196f7e520d16dcefc955d77 upstream.

There is a patch b55f84e2d527182e7c611d466cd0bb6ddce201de "ata_piix: Fix DVD
 not dectected at some Haswell platforms" to fix an issue of DVD not
recognized on Haswell Desktop platform with Lynx Point.
Recently, it is also found the same issue at some platformas with Wellsburg PCH.

So deliver a similar patch to fix it by disables 32bit PIO in IDE mode.

Signed-off-by: Youquan Song <youquan.song@intel.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/ata/ata_piix.c