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)
committerTejun Heo <tj@kernel.org>
Tue, 16 Jul 2013 11:52:02 +0000 (05:52 -0600)
commiteac27f04a71e1f39f196f7e520d16dcefc955d77
tree009600263f99955e0cf8b21bf9da26997bbe9a08
parentad81f0545ef01ea651886dddac4bef6cec930092
ata: Fix DVD not dectected at some platform with Wellsburg PCH

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>
Cc: stable@vger.kernel.org
drivers/ata/ata_piix.c