libata,pata_via: revert ata_wait_idle() removal from ata_sff/via_tf_load()
authorTejun Heo <teheo@novell.com>
Thu, 9 Sep 2010 15:13:31 +0000 (17:13 +0200)
committerJeff Garzik <jgarzik@redhat.com>
Fri, 10 Sep 2010 02:27:44 +0000 (22:27 -0400)
commit40c6023031369ae5573e622ca54fa3ffe89fb865
tree62c254cf5d2b302cc0f961394eb269bd0bd0a3c9
parentf1f5a807b051eddd3f302e503d39214e5bde0ef2
libata,pata_via: revert ata_wait_idle() removal from ata_sff/via_tf_load()

Commit 978c0666 (libata: Remove excess delay in the tf_load path)
removed ata_wait_idle() from ata_sff_tf_load() and via_tf_load().
This caused obscure detection problems in sata_sil.

  https://bugzilla.kernel.org/show_bug.cgi?id=16606

The commit was pure performance optimization.  Revert it for now.

Reported-by: Dieter Plaetinck <dieter@plaetinck.be>
Reported-by: Jan Beulich <JBeulich@novell.com>
Bisected-by: gianluca <gianluca@sottospazio.it>
Cc: stable@kernel.org
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
drivers/ata/libata-sff.c
drivers/ata/pata_via.c