From: Tejun Heo <tj@kernel.org>
Date: Wed, 1 Sep 2010 15:50:07 +0000 (+0200)
Subject: libata: implement LPM support for port multipliers
X-Git-Tag: v2.6.37-rc1~181^2~17
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=6c8ea89cecd780faa4f4c8ed8b3b6ab88f9fa841;p=pandora-kernel.git

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>
---

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