Hi Jeff,

(RESEND, now applied on top of libata/ALL branch)

Here is the v2 patches to add ahci controller runtime PM support.

Thanks for any comments.

v2:
- add ahci hibernate callbacks

v1:
https://lkml.org/lkml/2011/12/15/198

Lin Ming (3):
     ahci: port legacy pm interface to struct dev_pm_ops
     ahci: add runtime PM callbacks
     ata: runtime suspend port if no device attached

 drivers/ata/ahci.c        |   71 +++++++++++++++++++++++++++++++++++++++-----
 drivers/ata/libata-core.c |   21 ++++++++++++-
 2 files changed, 83 insertions(+), 9 deletions(-)