From: Dan Williams <dan.j.williams@intel.com>
Date: Fri, 8 May 2015 19:23:55 +0000 (-0400)
Subject: ahci: avoton port-disable reset-quirk
X-Git-Tag: omap-for-v4.2/wakeirq-drivers~2^2~38^2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=dbfe8ef5599a5370abc441fcdbb382b656563eb4;p=pandora-kernel.git

ahci: avoton port-disable reset-quirk

Avoton AHCI occasionally sees drive probe timeouts at driver load time.
When this happens SCR_STATUS indicates device detected, but no D2H FIS
reception.  Reset the internal link state machines by bouncing
port-enable in the PCS register when this occurs.

Cc: <stable@vger.kernel.org>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
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