diff options
Diffstat (limited to 'Documentation/ABI/testing/sysfs-driver-ufs')
| -rw-r--r-- | Documentation/ABI/testing/sysfs-driver-ufs | 36 |
1 files changed, 22 insertions, 14 deletions
diff --git a/Documentation/ABI/testing/sysfs-driver-ufs b/Documentation/ABI/testing/sysfs-driver-ufs index adc0d0e91607..75ccc5c62b3c 100644 --- a/Documentation/ABI/testing/sysfs-driver-ufs +++ b/Documentation/ABI/testing/sysfs-driver-ufs @@ -916,21 +916,25 @@ 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 +958,25 @@ 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 |