From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 830703A6B6F; Tue, 31 Mar 2026 11:03:37 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1774955017; cv=none; b=qbkmG1l2TrhDNG9bQudYpVxQ2aI9D4lg34plrArkOe5dSEAZ/ZiTO3kwOTYJCzSdeEbqM23h995mhLeY5WS/ah1m30zNhtDaSWkC5JjpZDjmz8U9QV3VnFwSmb/DuhAqA0H1Im7aOtyUQQuSzIM3ukMbCOiEmmj8QLT5oitgKmc= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1774955017; c=relaxed/simple; bh=ki8n3fWjJ0uDLFj/cJjwAfUHSi8/QbPmwfna1VWmJpM=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=u2qwJBG1DxPli0RdS/TfnN2Lgft9Dbm52fYscugbI4neysm9hWDTcrCfuqxlc6wc0Z5Aio4mTRhCnlYjKyvtBxWCJqCDiAqLErXXPUYrw7VYKBj5ZOpka28UzVwj0M1wK1swBqGSQuOesP07aFIY7PVjtTc4b4tifKYIDZzpHFM= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=KigaQzFR; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="KigaQzFR" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 7123FC19423; Tue, 31 Mar 2026 11:03:36 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1774955017; bh=ki8n3fWjJ0uDLFj/cJjwAfUHSi8/QbPmwfna1VWmJpM=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=KigaQzFRq2BwuyGeaF4v7+e+qDvQNCTfHCJOLYHznpfQXn8fDrFu+rMX4zjSX6ur8 INwAPokWjXvuUaS44mCmKq6efIjjqm2ZMjC63Le1YoKE0ZUQZcp9Zea/DyeL+MB29y Nwn9PxeHLMdIOKO5YCCJLY1E0G0YiD/epwQ3mTLw= Date: Tue, 31 Mar 2026 13:03:34 +0200 From: Greg Kroah-Hartman To: Rosen Penev Cc: Timur =?iso-8859-1?Q?Krist=F3f?= , stable@vger.kernel.org, Christian =?iso-8859-1?Q?K=F6nig?= , Alex Deucher , "Pan, Xinhui" , David Airlie , Daniel Vetter , Harry Wentland , Leo Li , Bin Lan , He Zhe , Vitaly Prosyak , Alex Hung , Rodrigo Siqueira , Mario Limonciello , Ray Wu , Wayne Lin , Roman Li , Eric Yang , Tony Cheng , Mauro Rossi , "open list:RADEON and AMDGPU DRM DRIVERS" , "open list:DRM DRIVERS" , open list Subject: Re: [PATCH for 6.12 3/9] drm/amd/display: Disable fastboot on DCE 6 too Message-ID: <2026033157-trifocals-swerve-d18f@gregkh> References: <20260326234716.16723-1-rosenp@gmail.com> <2312151.9o76ZdvQCi@timur-hyperion> <6b15401c-1fdf-4d3b-84aa-dfc47f430895@amd.com> <7351746.9J7NaK4W3v@timur-hyperion> Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: On Mon, Mar 30, 2026 at 02:38:35PM -0700, Rosen Penev wrote: > On Mon, Mar 30, 2026 at 7:21 AM Timur Kristóf wrote: > > > > On Monday, March 30, 2026 3:55:55 PM Central European Summer Time Christian > > König wrote: > > > On 3/30/26 15:16, Timur Kristóf wrote: > > > > On Friday, March 27, 2026 12:47:10 AM Central European Summer Time Rosen > > > > Penev> > > > > wrote: > > > >> From: Timur Kristóf > > > >> > > > >> [ Upstream commit 7495962cbceb967e095233a5673ea71f3bcdee7e ] > > > >> > > > >> It already didn't work on DCE 8, > > > >> so there is no reason to assume it would on DCE 6. > > > >> > > > >> Signed-off-by: Timur Kristóf > > > >> Reviewed-by: Rodrigo Siqueira > > > >> Reviewed-by: Alex Deucher > > > >> Reviewed-by: Alex Hung > > > >> Signed-off-by: Alex Deucher > > > >> Signed-off-by: Rosen Penev > > > > > > > > This patch is incorrect and should not be backported. > > > > > > > > (Note that the error is already fixed upstream. For stable kernels IMO > > > > it's > > > > best to drop this one.) > > > > > > Is there some alternative which needs to be backported or should the old > > > kernel just work out of the box because we never enabled some feature > > > there? > > > > > > Apart from that the patch set looks good to me. > > > > > > > This patch had a typo and does the opposite of what it should, ie. it disables > > eDP fastboot on DCE10 and newer instead of disabling it on DCE8 and older. > > > > The upstream fix is here: > > https://lists.freedesktop.org/archives/amd-gfx/2026-February/138577.html > > which disables eDP fastboot on DCE10 and older. > Not sure what the process is here. I make sure everything can be git > cherry-pick ed. In that case, both should be present. I agree, I don't understand the problem here. Just take the commits that are upstream including "fixes for the fixes". Timur, what specifically do you want to see happen here? thanks, greg k-h