Re: [PATCH v5 1/6] ata: make ata port as parent device of scsi host

Jeff Garzik
2011-12-07T20:04:38Z

On 12/04/2011 08:20 PM, Lin Ming wrote:
> Currently, the device tree of ata port and scsi host looks as below,
>
> /sys/devices/pci0000:00/0000:00:1f.2 (ahci controller)
> |-- ata1 (ata port)
> |-- host0 (scsi host)
> |-- target0:0:0 (scsi target)
> |-- 0:0:0:0 (disk)
>
> This patch makes ata port as parent device of scsi host, then it becomes
>
> /sys/devices/pci0000:00/0000:00:1f.2 (ahci controller)
> |-- ata1 (ata port)
> |-- host0 (scsi host)
> |-- target0:0:0 (scsi target)
> |-- 0:0:0:0 (disk)
>
> With this change, the ata port runtime PM is easier.
> For example, the ata port runtime suspend will happen as,
>
> disk suspend --> scsi target suspend --> scsi host suspend --> ata port
> suspend.
>
> Acked-by: Tejun Heo<tj@kernel.org>
> Signed-off-by: Lin Ming<ming.m.lin@intel.com>
> ---
> drivers/ata/libata-scsi.c | 2 +-
> 1 files changed, 1 insertions(+), 1 deletions(-)

applied 1-6, thanks