APPLIED(D)/cmt: [PATCH v2 0/1][D][OEM-OSP1-B]Sometimes touchpad automatically trigger double click

AceLan Kao acelan.kao at canonical.com
Mon Jul 1 02:06:01 UTC 2019


Questions, I thought after I submit the patch, I should set the bug
state to "Fix committed", no?

Khaled Elmously <khalid.elmously at canonical.com> 於 2019年6月28日 週五 上午11:50寫道:
>
> Applied to Disco - but thd bug was already set to "Fix committed" for Disco.
>
>
> On 2019-06-20 13:06:58 , AceLan Kao wrote:
> > BugLink: https://bugs.launchpad.net/bugs/1833484
> >
> > [Impact]
> > Dell machines which uses goodix touchpad IC emit double click event
> > while touching the touchpad if designware i2c adapter is in runtime
> > suspend.
> >
> > Goodix re-assert the interrupt if host doesn't read the data within
> > 100ms and designware takes a longer time to wake up from runtime
> > suspend. In the case, it got a second interrupt during resuming, so
> > it thinks it's a double click.
> >
> > [Fix]
> > There is no simple way to fix this, it's a firmware issue and goodix
> > agrees to fix this in their firmware on next release, but this issue is
> > still affects the machines that don't come with an updated firmware. So,
> > add a quirk to mark those machines and avoid the designware from entering
> > runtime suspend.
> >
> > [Regression Potential]
> > Low, it only affects the listed machines, and prevent designware from
> > entering runtime suspend impacts the power consumption little or none
> > during short or long idle.
> >
> > [MISC]
> > This patch contains on going product name, so set it as SAUCE patch,
> > will submit it to upstream and to Bionic kernel later.
> >
> > AceLan Kao (1):
> >   UBUNTU: SAUCE: i2c: designware: Add disable runtime pm quirk
> >
> >  drivers/i2c/busses/i2c-designware-master.c | 44 +++++++++++++++++++++-
> >  1 file changed, 42 insertions(+), 2 deletions(-)
> >
> > --
> > 2.17.1
> >
> >
> > --
> > kernel-team mailing list
> > kernel-team at lists.ubuntu.com
> > https://lists.ubuntu.com/mailman/listinfo/kernel-team



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