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author | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2020-07-22 05:02:33 +0300 |
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committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2020-07-22 05:02:33 +0300 |
commit | 9b031c86506cef9acae45e61339fcf9deaabb793 (patch) | |
tree | 9095d638ba9384f86df8d61dcf1f129c082481e1 /Documentation/scsi/link_power_management_policy.rst | |
parent | 53aab92dec447f93489e07924e310d605a389dea (diff) | |
parent | 04d5ce620f794f1df69b5f1b9ad62910fea547f1 (diff) | |
download | linux-9b031c86506cef9acae45e61339fcf9deaabb793.tar.xz |
Merge branch 'elan-i2c' into next
Bring in update to Elan touchpad driver to support newer touchpads with
higher resolution.
Diffstat (limited to 'Documentation/scsi/link_power_management_policy.rst')
-rw-r--r-- | Documentation/scsi/link_power_management_policy.rst | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/Documentation/scsi/link_power_management_policy.rst b/Documentation/scsi/link_power_management_policy.rst new file mode 100644 index 000000000000..64288dcf10f6 --- /dev/null +++ b/Documentation/scsi/link_power_management_policy.rst @@ -0,0 +1,25 @@ +.. SPDX-License-Identifier: GPL-2.0 + +========================== +Link Power Managent Policy +========================== + +This parameter allows the user to set the link (interface) power management. +There are 3 possible options: + +===================== ===================================================== +Value Effect +===================== ===================================================== +min_power Tell the controller to try to make the link use the + least possible power when possible. This may + sacrifice some performance due to increased latency + when coming out of lower power states. + +max_performance Generally, this means no power management. Tell + the controller to have performance be a priority + over power management. + +medium_power Tell the controller to enter a lower power state + when possible, but do not enter the lowest power + state, thus improving latency over min_power setting. +===================== ===================================================== |