tree a38ecca3c52cd4ca021137086b39d7dcd8b042cc
parent 6b7ae9545ad9875a289f4191c0216b473e313cb9
author Tejun Heo <tj@kernel.org> 1283356207 +0200
committer Jeff Garzik <jgarzik@redhat.com> 1287706864 -0400

libata: implement LPM support for port multipliers

Port multipliers can do DIPM on fan-out links fine.  Implement support
for it.  Tested w/ SIMG 57xx and marvell PMPs.  Both the host and
fan-out links enter power save modes nicely.

SIMG 37xx and 47xx report link offline on SStatus causing EH to detach
the devices.  Blacklisted.

Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>