mfd: intel-lpss: Add default I2C device properties for Apollo Lake
Bug #1635177 reported by
Ying-Chun Liu
This bug affects 1 person
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
HWE Next |
Fix Released
|
Undecided
|
Ying-Chun Liu | ||
linux (Ubuntu) |
Triaged
|
Medium
|
Unassigned | ||
Xenial |
Fix Released
|
Undecided
|
Ying-Chun Liu | ||
Yakkety |
Fix Released
|
Undecided
|
Ying-Chun Liu |
Bug Description
We need this patch for all Apollo Lake platforms for enabling the touchpad.
This patch was cherry-picked from c50cdd62dda3f88
It is because for Apollo Lake, the default freq/falling-time is incorrect. So it makes the i2c acts weird.
Please consider SRU this commit.
Impact:
All touchpad on Apollo Lake work unstable on i2c mode. Sometimes it will
fallback to PS/2 mode and lost some functionality.
Fix:
touchpad works good on i2c mode.
Tested:
The patch is tested on many Dell ApolloLake laptops and works good.
Changed in linux (Ubuntu): | |
importance: | Undecided → Medium |
status: | Incomplete → Triaged |
description: | updated |
Changed in linux (Ubuntu Yakkety): | |
assignee: | nobody → Ying-Chun Liu (paulliu) |
Changed in linux (Ubuntu Xenial): | |
assignee: | nobody → Ying-Chun Liu (paulliu) |
status: | New → In Progress |
Changed in linux (Ubuntu Yakkety): | |
status: | New → In Progress |
Changed in hwe-next: | |
assignee: | nobody → Ying-Chun Liu (paulliu) |
Changed in linux (Ubuntu Yakkety): | |
status: | In Progress → Fix Committed |
Changed in linux (Ubuntu Yakkety): | |
status: | Fix Committed → In Progress |
Changed in linux (Ubuntu Yakkety): | |
status: | In Progress → Fix Committed |
Changed in linux (Ubuntu Xenial): | |
status: | In Progress → Fix Committed |
Changed in hwe-next: | |
status: | New → Fix Committed |
Changed in hwe-next: | |
status: | Fix Committed → Fix Released |
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This bug is missing log files that will aid in diagnosing the problem. From a terminal window please run:
apport-collect 1635177
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.