linux-kernel - [RFC] ACPI D3Cold state and SATA ZPODD support

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Date:	Mon, 13 Feb 2012 17:11:05 +0800
From:	Lin Ming <ming.m.lin@...el.com>
To:	Zhang Rui <rui.zhang@...el.com>, Jeff Garzik <jgarzik@...ox.com>,
	Alan Stern <stern@...land.harvard.edu>,
	Tejun Heo <tj@...nel.org>, "Rafael J. Wysocki" <rjw@...k.pl>,
	Len Brown <lenb@...nel.org>
Cc:	linux-kernel@...r.kernel.org, linux-ide@...r.kernel.org,
	linux-scsi@...r.kernel.org, linux-pm@...r.kernel.org
Subject: [RFC] ACPI D3Cold state and SATA ZPODD support

Hi all,

This patchset adds support for ACPI D3Cold state and ZPODD(Zero Power
Optical Disk Drive).

ZPODD is a new feature in SATA 3.1 specification. It provides a way to
power off unused CDROM.

CDROM is powered on/off by executing ACPI power resource's _ON/_OFF
method. It enters ACPI D3Cold state when powered off.

PATCH 1 to 4: Adds ACPI D3Cold state support
PATCH 5 to 6: Adds ZPODD support

Applied on top of libata/ALL branch.

[PATCH 1/6] ACPI: Introduce ACPI D3_COLD state support
[PATCH 2/6] ACPI: Reference devices in ACPI Power Resource
[PATCH 3/6] ACPI: Runtime resume all devices covered by a power resource
[PATCH 4/6] PM / Runtime: Introduce flag can_power_off
[PATCH 5/6] PCI: Move acpi_dev_run_wake to acpi core
[PATCH 6/6] libata: add ZPODD support

 drivers/acpi/power.c       |  141 +++++++++++++++++++++++++++++++++++++++++++-
 drivers/acpi/scan.c        |   10 +++-
 drivers/acpi/sleep.c       |   35 +++++++++++
 drivers/ata/libata-acpi.c  |   64 ++++++++++++++++----
 drivers/pci/pci-acpi.c     |   40 +------------
 drivers/scsi/sr.c          |   39 ++++++++++++
 drivers/scsi/sr.h          |    3 +
 include/acpi/acpi_bus.h    |    7 ++
 include/linux/pm.h         |    1 +
 include/linux/pm_runtime.h |   30 +++++++++
 10 files changed, 319 insertions(+), 51 deletions(-)

Thanks for any comments.

Lin Ming
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