[Feature] Haswell ULT - SATA RTD3 support

[Yingying Zhao]

Add Runtime D3 support in SATA:
Device PM
     - SATA port D3Hot support
     - SATA/SCSI bus D3Cold support
     - D3Cold support for SATA disk
     - Zero-power ODD (D3Cold for CDROM)
     - Request based SATA disk runtime PM support
Controller runtime PM
     - AHCI D3Hot support

Upstream Schedule:
kernel 3.6

[Yingying Zhao (yingying-zhao)]

Zero-power ODD (D3Cold for CDROM) is done in kernel 3.9 (11 patches in total):

1.
commit 44ec657be09e36091281674a5702f1c43ce22d94
Author: Aaron Lu <email address hidden>
Date: Wed Jan 23 15:09:33 2013 +0800

    [SCSI] remove can_power_off flag from scsi_device

2.
commit 6f4c827e68a78731c6c75df69bf7b75b029ec70c
Author: Aaron Lu <email address hidden>
Date: Wed Jan 23 15:09:32 2013 +0800

    [libata] scsi: no poll when ODD is powered off

3.
commit 6c7f1e2f12f6f37ddda01180c9e5c407eccce616
Author: Aaron Lu <email address hidden>
Date: Wed Jan 23 15:09:31 2013 +0800

    [SCSI] sr: support runtime pm

4.
commit f5e6d0d0eb819cbe1a68b9561c8e83fbd1a6d13a
Author: Aaron Lu <email address hidden>
Date: Fri Jan 25 14:32:25 2013 +0800

    [libata] PM code cleanup for ata port

5.
commit a7ff60dbe0858496531c75b1544666c099a2b200
Author: Aaron Lu <email address hidden>
Date: Fri Jan 25 14:29:35 2013 +0800

    [libata] pm: differentiate system and runtime pm for ata port

6.
commit a59b9aae230316134597775c6202cf28f6da0333
Author: Aaron Lu <email address hidden>
Date: Tue Jan 15 17:21:02 2013 +0800

    libata: expose pm qos flags for ata device

7.
commit 213342053db58eabdaddff9c036c2b81ca63c443
Author: Aaron Lu <email address hidden>
Date: Tue Jan 15 17:21:01 2013 +0800

    libata: handle power transition of ODD

8.
commit 3dc67440d99b2c718ef5f1eb1424a9066ffa3fb9
Author: Aaron Lu <email address hidden>
Date: Tue Jan 15 17:21:00 2013 +0800

    libata: check zero power ready status for ZPODD

9.
commit f064a20dded807448669426c9bfb7d03aba5659c
Author: Aaron Lu <email address hidden>
Date: Tue Jan 15 17:20:59 2013 +0800

    libata: move acpi notification code to zpodd

10.
commit afe759511808cd5bb508b598007cf0c7b0ca8e08
Author: Aaron Lu <email address hidden>
Date: Tue Jan 15 17:20:58 2013 +0800

    libata: identify and init ZPODD devices

11.
commit 53637e0760d56274177be7e6d630490bc49766c1
Author: Aaron Lu <email address hidden>
Date: Mon Jan 28 13:08:02 2013 +0800

    [libata] fix smatch warning for zpodd_wake_dev

[Yingying Zhao (yingying-zhao)]

SATA/SCSI bus D3Cold support is done in kernel v3.6 via this patch:

commit 3bd46600a7a7e938c54df8cdbac9910668c7dfb0
Author: Lin Ming <email address hidden>
Date: Mon Jun 25 16:13:06 2012 +0800

    libata-acpi: add ata port runtime D3Cold support

[Yingying Zhao (yingying-zhao)]

SATA port D3Hot support is done in kernel v3.3.

[Yingying Zhao (yingying-zhao)]

 SATA disk D3Cold support is verified in kernel 3.6. No code is added.

[Launchpad Janitor (janitor)]

This bug was fixed in the package linux - 3.8.0-11.20

---------------
linux (3.8.0-11.20) raring; urgency=low

  [ Tim Gardner ]

  * Release Tracking Bug
    - LP: #1147659
  * [Config] CONFIG_SPI_PXA2XX_PCI=m
    - LP: #1031169
  * CONFIG_SATA_ZPODD=y
    - LP: #1031180
  * CONFIG_GPIO_LYNXPOINT=y
    - LP: #1031174

  [ Upstream Kernel Changes ]

  * spi/pxa2xx-pci: switch to use pcim_* interfaces
    - LP: #1031169
  * spi/pxa2xx: embed the ssp_device to platform data
    - LP: #1031169
  * spi/pxa2xx: allow building on a 64-bit kernel
    - LP: #1031169
  * spi/pxa2xx: fix warnings when compiling a 64-bit kernel
    - LP: #1031169
  * spi/pxa2xx: convert to the pump message infrastructure
    - LP: #1031169
  * spi/pxa2xx: convert to the common clk framework
    - LP: #1031169
  * spi/pxa2xx: break out the private DMA API usage into a separate file
    - LP: #1031169
  * spi/pxa2xx: add support for DMA engine
    - LP: #1031169
  * spi/pxa2xx: add support for runtime PM
    - LP: #1031169
  * spi/pxa2xx: add support for SPI_LOOP
    - LP: #1031169
  * spi/pxa2xx: add support for Intel Low Power Subsystem SPI
    - LP: #1031169
  * spi/pxa2xx: add support for Lynxpoint SPI controllers
    - LP: #1031169
  * i2c-designware: always set the STOP bit after last byte
    - LP: #1031166
  * i2c-designware: add minimal support for runtime PM
    - LP: #1031166
  * i2c-designware: add support for Intel Lynxpoint
    - LP: #1031166
  * remove can_power_off flag from scsi_device
    - LP: #1031180
  * sr: support runtime pm
    - LP: #1031180
  * libata: identify and init ZPODD devices
    - LP: #1031180
  * libata: move acpi notification code to zpodd
    - LP: #1031180
  * libata: check zero power ready status for ZPODD
    - LP: #1031180
  * libata: handle power transition of ODD
    - LP: #1031180
  * libata: expose pm qos flags for ata device
    - LP: #1031180
  * libata: do not suspend port if normal ODD is attached
    - LP: #1031180
  * pm: differentiate system and runtime pm for ata port
    - LP: #1031180
  * PM code cleanup for ata port
    - LP: #1031180
  * scsi: no poll when ODD is powered off
    - LP: #1031180
  * Set proper SK when CK_COND is set.
    - LP: #1031180
  * fix smatch warning for zpodd_wake_dev
    - LP: #1031180
  * gpio/lynxpoint: add chipset gpio driver.
    - LP: #1031174
 -- Tim Gardner <email address hidden> Tue, 05 Mar 2013 05:42:44 -0700

[Adam Conrad (adconrad)]

The verification of this Stable Release Update has completed successfully and the package has now been released to -updates. Subsequently, the Ubuntu Stable Release Updates Team is being unsubscribed and will not receive messages about this bug report. In the event that you encounter a regression using the package from -updates please report a new bug using ubuntu-bug and tag the bug report regression-update so we can easily find any regresssions.

[Leann Ogasawara (leannogasawara)]

Add a Saucy nomination as Intel informs me there are a few additional patches to pull in for Saucy.

[XiongZhang (xiong-y-zhang)]

The following commits support for request based SATA disk runtime PM support in kernel 3.10:
1.
commit 6df339a51e3bf18b868384bdeb31e49a4fbaa3d8
Author: Lin Ming <email address hidden>
Date: Sat Mar 23 11:42:28 2013 +0800

    [SCSI] sd: change to auto suspend mode

2.
commit 9b21493c4520970f8f404e0265f48e37f9cffaf5
Author: Lin Ming <email address hidden>
Date: Sat Mar 23 11:42:25 2013 +0800

    [SCSI] sd: use REQ_PM in sd's runtime suspend operation

3.
commit c8158819d506a8aedeca53c52dfb709a0aabe011
Author: Lin Ming <email address hidden>
Date: Sat Mar 23 11:42:27 2013 +0800

    block: implement runtime pm strategy

4.
commit 6c9546675864f51506af69eca388e5d922942c56
Author: Lin Ming <email address hidden>
Date: Sat Mar 23 11:42:26 2013 +0800

    block: add runtime pm helpers

5.
commit 66311274691ec65972cad3626057fa8d00c146d8
Author: Lin Ming <email address hidden>
Date: Sat Mar 23 11:42:24 2013 +0800

    block: add a flag to identify PM request

6.
commit c60855cdb976c632b3bf8922eeab8a0e78edfc04
Author: Aaron Lu <email address hidden>
Date: Fri May 17 15:47:20 2013 +0800

    blkpm: avoid sleep when holding queue lock

[Tim Gardner (timg-tpi)]

All patches are merged by 3.10 final, released in Ubuntu 3.10.0-2.9