Backport better suspend/resume function for pinctrl-cherryview
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
HWE Next |
Won't Fix
|
Undecided
|
Phidias | ||
linux (Ubuntu) |
Fix Released
|
Medium
|
Phidias | ||
Vivid |
Fix Released
|
Undecided
|
Unassigned |
Bug Description
[Impact]
On some platforms the touchpad relies on pinctrl devices to provide GPIO interrupt, but in 3.19.0 pinctrl-cherryview doesn't support suspend well and will lose the config after suspend/resume, then touchpad can't be used.
[Fix]
There's a commit in 4.0-rc1 to add suspend/resume for pinctrl-cherryview:
commit 9eb457b547cc731
Refs: [HEAD]
Author: Mika Westerberg <email address hidden>
Date: Thu Dec 4 12:32:50 2014 +0200
pinctrl: cherryview: Save and restore pin configs over system sle
which can be clean cherry-picked
[Test]
3.19.0-33 -> failed
4.2-> passed
4.0, 4.1 -> Can't suspend due to graphic driver failed so can't use to test
3.19.0-33 + patched module -> passed
Changed in linux (Ubuntu): | |
importance: | Undecided → Medium |
status: | Incomplete → Triaged |
Changed in hwe-next: | |
assignee: | nobody → Phidias (phidias-chiang) |
status: | New → Triaged |
Changed in linux (Ubuntu): | |
status: | Triaged → Fix Committed |
Changed in linux (Ubuntu Vivid): | |
status: | New → Fix Committed |
Changed in linux (Ubuntu): | |
status: | Fix Committed → Fix Released |
tags: |
added: verification-done-vivid removed: verification-needed-vivid |
This bug is missing log files that will aid in diagnosing the problem. From a terminal window please run:
apport-collect 1518855
and then change the status of the bug to 'Confirmed'.
If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'.
This change has been made by an automated script, maintained by the Ubuntu Kernel Team.