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Fri, 17 Jan 2025 07:30:05 -0800 (PST) Received: from phenom.ffwll.local ([2a02:168:57f4:0:5485:d4b2:c087:b497]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-38bf3221b7fsm2764368f8f.27.2025.01.17.07.30.04 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 17 Jan 2025 07:30:05 -0800 (PST) Date: Fri, 17 Jan 2025 16:30:03 +0100 From: Simona Vetter To: "Deucher, Alexander" Cc: "stable@vger.kernel.org" , "stable-commits@vger.kernel.org" , "oushixiong@kylinos.cn" , "Koenig, Christian" , "Pan, Xinhui" , David Airlie , Simona Vetter , DRI Development Subject: Re: Patch "drm/radeon: Delay Connector detecting when HPD singals is unstable" has been added to the 6.6-stable tree Message-ID: References: <20250103004210.471570-1-sashal@kernel.org> Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-Operating-System: Linux phenom 6.12.3-amd64 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 > > > Sent: Thursday, January 2, 2025 7:42 PM > > > To: stable-commits@vger.kernel.org; oushixiong@kylinos.cn > > > Cc: Deucher, Alexander ; Koenig, Christian > > > ; Pan, Xinhui ; David Airlie > > > ; Simona Vetter > > > 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 > > > know about it. > > > > > > > > > > > > commit 20430c3e75a06c4736598de02404f768653d953a > > > Author: Shixiong Ou > > > 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 > > > Signed-off-by: Alex Deucher > > > 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? Some other examples people brought up: https://lore.kernel.org/stable/a31d3d49-1861-19a2-2bb4-8793c8eabee9@mailbox.org/ https://lore.kernel.org/stable/a31d3d49-1861-19a2-2bb4-8793c8eabee9@mailbox.org/ -Sima -- Simona Vetter Software Engineer, Intel Corporation http://blog.ffwll.ch