From mboxrd@z Thu Jan  1 00:00:00 1970
From: Tejun Heo <tj@kernel.org>
Subject: Re: [PATCH v2 0/3] ahci: fix boot/resume COMRESET failures
Date: Mon, 12 Mar 2012 15:12:09 -0700
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To: Brian Norris <computersforpeace@gmail.com>
Cc: Jeff Garzik <jgarzik@pobox.com>, linux-ide@vger.kernel.org, Linux Kernel <linux-kernel@vger.kernel.org>, Lin Ming <ming.m.lin@intel.com>, Norbert Preining <preining@logic.at>, "Srivatsa S . Bhat" <srivatsa.bhat@linux.vnet.ibm.com>, Valdis Kletnieks <valdis.kletnieks@vt.edu>, "Rafael J . Wysocki" <rjw@sisk.pl>

On Tue, Feb 21, 2012 at 10:38:41AM -0800, Brian Norris wrote:
> This series addresses regression problems with
> 
>     commit 7faa33da9b7add01db9f1ad92c6a5d9145e940a7
>     ahci: start engine only during soft/hard resets
> 
> Because the fix provided by the above commit caused COMRESET failures and
> 10 second boot-time/resume-time hangs for certain DVD drives, we need to
> make the fix conditional to certain devices/platforms. Add a flag for this.
> 
> Brian
> 
> v2: change flag name to AHCI_HFLAG_DELAY_ENGINE, write more detailed
>     comments
> 
> v1: flag named AHCI_HFLAG_STRICT_SPEC
> 
> Brian Norris (3):
>   ahci: add AHCI_HFLAG_DELAY_ENGINE host flag
>   ahci: move AHCI_HFLAGS() macro to ahci.h
>   ahci_platform: add STRICT_AHCI platform type

This looks good to me.  Jeff?

-- 
tejun