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Subject[RFC] ACPI D3Cold state and SATA ZPODD support
Date
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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