linux-kernel - [PATCH 0/3] ahci: fix boot/resume COMRESET failures

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Date:	Mon, 20 Feb 2012 12:09:20 -0800
From:	Brian Norris <computersforpeace@...il.com>
To:	Jeff Garzik <jgarzik@...ox.com>
Cc:	<linux-ide@...r.kernel.org>,
	Linux Kernel <linux-kernel@...r.kernel.org>,
	Tejun Heo <tj@...nel.org>, Kevin Cernekee <cernekee@...il.com>,
	Brian Norris <computersforpeace@...il.com>,
	Lin Ming <ming.m.lin@...el.com>,
	Norbert Preining <preining@...ic.at>,
	"Srivatsa S . Bhat" <srivatsa.bhat@...ux.vnet.ibm.com>,
	Valdis Kletnieks <valdis.kletnieks@...edu>,
	"Rafael J . Wysocki" <rjw@...k.pl>
Subject: [PATCH 0/3] ahci: fix boot/resume COMRESET failures

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

Brian Norris (3):
  ahci: add AHCI_HFLAG_STRICT_SPEC host flag
  ahci: move AHCI_HFLAGS() macro to ahci.h
  ahci_platform: add STRICT_AHCI platform type

 drivers/ata/ahci.c          |    2 --
 drivers/ata/ahci.h          |    4 ++++
 drivers/ata/ahci_platform.c |   11 +++++++++++
 drivers/ata/libahci.c       |    5 +++++
 4 files changed, 20 insertions(+), 2 deletions(-)

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