Re: Patch "drm/radeon: Delay Connector detecting when HPD singals is unstable" has been added to the 6.6-stable tree

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On Fri, Jan 17, 2025 at 04:11:31PM +0100, Simona Vetter wrote:
> On Wed, Jan 08, 2025 at 12:02:03AM +0000, Deucher, Alexander wrote:
> > [Public]
> > 
> > > -----Original Message-----
> > > From: Sasha Levin <sashal@xxxxxxxxxx>
> > > Sent: Thursday, January 2, 2025 7:42 PM
> > > To: stable-commits@xxxxxxxxxxxxxxx; oushixiong@xxxxxxxxxx
> > > Cc: Deucher, Alexander <Alexander.Deucher@xxxxxxx>; Koenig, Christian
> > > <Christian.Koenig@xxxxxxx>; Pan, Xinhui <Xinhui.Pan@xxxxxxx>; David Airlie
> > > <airlied@xxxxxxxxx>; Simona Vetter <simona@xxxxxxxx>
> > > Subject: Patch "drm/radeon: Delay Connector detecting when HPD singals is
> > > unstable" has been added to the 6.6-stable tree
> > >
> > > This is a note to let you know that I've just added the patch titled
> > >
> > >     drm/radeon: Delay Connector detecting when HPD singals is unstable
> > >
> > > to the 6.6-stable tree which can be found at:
> > >     http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
> > >
> > > The filename of the patch is:
> > >      drm-radeon-delay-connector-detecting-when-hpd-singal.patch
> > > and it can be found in the queue-6.6 subdirectory.
> > >
> > > If you, or anyone else, feels it should not be added to the stable tree, please let
> > > <stable@xxxxxxxxxxxxxxx> know about it.
> > >
> > >
> > >
> > > commit 20430c3e75a06c4736598de02404f768653d953a
> > > Author: Shixiong Ou <oushixiong@xxxxxxxxxx>
> > > Date:   Thu May 9 16:57:58 2024 +0800
> > >
> > >     drm/radeon: Delay Connector detecting when HPD singals is unstable
> > >
> > >     [ Upstream commit 949658cb9b69ab9d22a42a662b2fdc7085689ed8 ]
> > >
> > >     In some causes, HPD signals will jitter when plugging in
> > >     or unplugging HDMI.
> > >
> > >     Rescheduling the hotplug work for a second when EDID may still be
> > >     readable but HDP is disconnected, and fixes this issue.
> > >
> > >     Signed-off-by: Shixiong Ou <oushixiong@xxxxxxxxxx>
> > >     Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
> > >     Stable-dep-of: 979bfe291b5b ("Revert "drm/radeon: Delay Connector detecting
> > > when HPD singals is unstable"")
> > 
> > 
> > Please drop both of these patches.  There is no need to pull back a
> > patch just so that you can apply the revert.
> 
> Since we've just been discussing stable backports at length, how did this
> one happen?
> 
> 949658cb9b69ab9d22a42a662b2fdc7085689ed8 is in v6.11 and 979bfe291b5b in
> v6.13-rc1, so there's definitely a need to backport the latter to v6.11.y
> and v6.12.y. And maybe there was a cherry-pick of 949658cb9b69ab9d22a42a66
> to older stable releases already, but that doesn't seem to be the case. So
> what happened here?

I think Sasha's revert checker caught this one accidentally, but I'll
defer to him for the final answer.

thanks,

greg k-h




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