Hi
UFS devices can remain runtime suspended at system suspend time,
if the conditions are right. Add support for that, first fixing
the impediments.
Changes in V6:
scsi: ufs: Fix error handler clear ua deadlock
Ensure data byte count bits 1:0 are 11b
Use ufshcd_compose_dev_cmd() to set up command
Changes in V5:
scsi: ufs: Fix error handler clear ua deadlock
Update commit message
Try to abort REQUEST SENSE if it times out
Changes in V4:
scsi: ufs: Fix error handler clear ua deadlock
Do request-sense directly
Changes in V3:
scsi: ufs: Fix error handler clear ua deadlock
Correct commit message.
Amend stable tags to add dependent cherry picks
Changes in V2:
scsi: ufs: Let devices remain runtime suspended during system suspend
The ufs-hisi driver uses different RPM and SPM, but it is made
explicit by a new parameter to suspend prepare.
Adrian Hunter (3):
scsi: ufs: Fix error handler clear ua deadlock
scsi: ufs: Fix runtime PM dependencies getting broken
scsi: ufs: Let devices remain runtime suspended during system suspend
drivers/scsi/scsi_pm.c | 16 ++-
drivers/scsi/ufs/ufs-hisi.c | 8 +-
drivers/scsi/ufs/ufs.h | 3 +-
drivers/scsi/ufs/ufshcd.c | 296 ++++++++++++++++++++++++++++++--------------
drivers/scsi/ufs/ufshcd.h | 24 +++-
include/scsi/scsi_device.h | 1 +
include/trace/events/ufs.h | 5 +-
7 files changed, 251 insertions(+), 102 deletions(-)
Regards
Adrian
