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23 October 2021, 00:29:24 UTC
Revision 9666f4009c22f6520ac3fb8a19c9e32ab973e828 authored by Tejun Heo on 04 May 2007, 19:27:47 UTC, committed by Jeff Garzik on 11 May 2007, 22:01:03 UTC 
libata: reimplement suspend/resume support using sdev->manage_start_stop
 
Reimplement suspend/resume support using sdev->manage_start_stop.

* Device suspend/resume is now SCSI layer's responsibility and the
  code is simplified a lot.

* DPM is dropped.  This also simplifies code a lot.  Suspend/resume
  status is port-wide now.

* ata_scsi_device_suspend/resume() and ata_dev_ready() removed.

* Resume now has to wait for disk to spin up before proceeding.  I
  couldn't find easy way out as libata is in EH waiting for the
  disk to be ready and sd is waiting for EH to complete to issue
  START_STOP.

* sdev->manage_start_stop is set to 1 in ata_scsi_slave_config().
  This fixes spindown on shutdown and suspend-to-disk.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
1 parent 0a3fd05
History
Tip revision: 9666f4009c22f6520ac3fb8a19c9e32ab973e828 authored by Tejun Heo on 04 May 2007, 19:27:47 UTC
libata: reimplement suspend/resume support using sdev->manage_start_stop
Tip revision: 9666f40
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