NACK: [PATCH 00/12][SRU][Jammy/Unstable]Fix i915 TypeC disconnect problems for Intel ADL-P

[Andrea Righi]

On Fri, Nov 26, 2021 at 03:59:04PM +0800, Chris Chiu wrote:
> On Fri, Nov 26, 2021 at 3:46 PM Andrea Righi <andrea.righi at canonical.com> wrote:
> >
> > On Thu, Nov 25, 2021 at 06:10:44PM +0800, Chris Chiu wrote:
> > > BugLink: https://bugs.launchpad.net/bugs/1952041
> > >
> > > [Impact]
> > > When the ADL-P system connects the external display via TypeC port, it will hang after unplugging the TypeC connector. The system will never come back until reboot.
> > >
> > > [Fix]
> > > Intel has released a patch set to fix the TypeC PHY connect/disconnect logic. The shift for ownership of PHY and power domain will be handled correctly for ADL-P.
> > >
> > > [Test]
> > > The ADL-P system will no longer freeze and the ownership will shift correctly after disconnecting the external display connects via TypeC port.
> > >
> > > [Where problem could occur]
> > > It's kind of a big refactor for the i915 TypeC PHY handling logic. Don't know if there's any problems on older platforms. Targeting Jammy/Unstable and latest OEM kernel for lower risk.
> >
> > NACK-ing this one, because there's a v2 in the list.
> >
> > -Andrea
> 
> Sorry for the confusion but the v2 is for OEM-5.14 only. This is for
> 5.15 Jammy and Unstable which can cherry-pick the whole set from linux
> mainline cleanly. #4 patch "[PATCH 04/12][SRU][Jammy/Unstable]
> drm/i915/tc: Add/use helpers to retrieve TypeC port properties" is
> slightly different from the same patch in OEM-5.14.

Oh.. so this is the right version for Jammy, right? And all the patches
are clean upstream cherry picks.

Are we expecting to get these changes from the regular stable updates
(will this be merged in stable/linux-5.15.y)? Or do you think it's
unlikely to happen?

Thanks,
-Andrea