Commit 0b2894cd authored by Adrian Hunter's avatar Adrian Hunter Committed by Martin K. Petersen
Browse files

scsi: docs: ABI: sysfs-driver-ufs: Add DeepSleep power mode 

Update sysfs documentation for addition of DeepSleep power mode.

Link: https://lore.kernel.org/r/20210104155026.16417-1-adrian.hunter@intel.com


Fixes: fe1d4c2e ("scsi: ufs: Add DeepSleep feature")
Signed-off-by: default avatarAdrian Hunter <adrian.hunter@intel.com>
Signed-off-by: default avatarMartin K. Petersen <martin.petersen@oracle.com>
parent be255335

Documentation/ABI/testing/sysfs-driver-ufs

+20 −14
Original line number Diff line number Diff line
@@ -916,21 +916,24 @@ Date: September 2014 
Contact:	Subhash Jadavani <subhashj@codeaurora.org>

Description:	This entry could be used to set or show the UFS device

		runtime power management level. The current driver

		implementation supports 6 levels with next target states:

		implementation supports 7 levels with next target states:



		==  ====================================================

		0   an UFS device will stay active, an UIC link will

		0   UFS device will stay active, UIC link will

		    stay active

		1   an UFS device will stay active, an UIC link will

		1   UFS device will stay active, UIC link will

		    hibernate

		2   an UFS device will moved to sleep, an UIC link will

		2   UFS device will be moved to sleep, UIC link will

		    stay active

		3   an UFS device will moved to sleep, an UIC link will

		3   UFS device will be moved to sleep, UIC link will

		    hibernate

		4   an UFS device will be powered off, an UIC link will

		4   UFS device will be powered off, UIC link will

		    hibernate

		5   an UFS device will be powered off, an UIC link will

		5   UFS device will be powered off, UIC link will

		    be powered off

		6   UFS device will be moved to deep sleep, UIC link

		will be powered off. Note, deep sleep might not be

		supported in which case this value will not be accepted

		==  ====================================================



What:		/sys/bus/platform/drivers/ufshcd/*/rpm_target_dev_state
@@ -954,21 +957,24 @@ Date: September 2014 
Contact:	Subhash Jadavani <subhashj@codeaurora.org>

Description:	This entry could be used to set or show the UFS device

		system power management level. The current driver

		implementation supports 6 levels with next target states:

		implementation supports 7 levels with next target states:



		==  ====================================================

		0   an UFS device will stay active, an UIC link will

		0   UFS device will stay active, UIC link will

		    stay active

		1   an UFS device will stay active, an UIC link will

		1   UFS device will stay active, UIC link will

		    hibernate

		2   an UFS device will moved to sleep, an UIC link will

		2   UFS device will be moved to sleep, UIC link will

		    stay active

		3   an UFS device will moved to sleep, an UIC link will

		3   UFS device will be moved to sleep, UIC link will

		    hibernate

		4   an UFS device will be powered off, an UIC link will

		4   UFS device will be powered off, UIC link will

		    hibernate

		5   an UFS device will be powered off, an UIC link will

		5   UFS device will be powered off, UIC link will

		    be powered off

		6   UFS device will be moved to deep sleep, UIC link

		will be powered off. Note, deep sleep might not be

		supported in which case this value will not be accepted

		==  ====================================================



What:		/sys/bus/platform/drivers/ufshcd/*/spm_target_dev_state