From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from pidgin.makrotopia.org (pidgin.makrotopia.org [185.142.180.65]) (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 13E0D1A6161; Tue, 30 Jul 2024 16:22:57 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=185.142.180.65 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1722356579; cv=none; b=fp9yf10GayJmeF4mi1JmmCreuHiRXIS/wcOsRWsjCSmvg1C8G4dMXX9U3G6QNLXzGfsd6fgmK85AG7VVJLBFJ5HeLLffTbh9WMIhCh20db/ZVzz0ELhWFZ5Bi8qTMPoFJojb1ClI4wEFnxRrFpgQi4KAsUSHG3uyiDS2bMcCBUs= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1722356579; c=relaxed/simple; bh=c/mVr9gTlg70oedvLOoEn2BtKUU3gEiIrg9E3aZ0pgo=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=GJjomfJGU5FGfCEwGrQ+N0shL3KrjSbYpfqefUofBqC2g/xi0JYp3MQknUJyAGsoSBpqMU72t5RNWaODo3U/oNJP4e6z/A6OhSB1lj5BNg/oBsJRoNTza/Gd5SJxaVB1ftxa6ux3DA6DCAXcHmgE7zDFlPP/MaT4m4wwbVCy5c0= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=makrotopia.org; spf=pass smtp.mailfrom=makrotopia.org; arc=none smtp.client-ip=185.142.180.65 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=makrotopia.org Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=makrotopia.org Received: from local by pidgin.makrotopia.org with esmtpsa (TLS1.3:TLS_AES_256_GCM_SHA384:256) (Exim 4.98) (envelope-from ) id 1sYpch-000000002QG-0tH9; Tue, 30 Jul 2024 16:22:51 +0000 Date: Tue, 30 Jul 2024 17:22:47 +0100 From: Daniel Golle To: Krzysztof Kozlowski Cc: arinc.unal@arinc9.com, AngeloGioacchino Del Regno , Linux regressions mailing list , Paolo Abeni , "David S. Miller" , Jakub Kicinski , devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, frank-w@public-files.de, Frank Wunderlich , Rob Herring , Conor Dooley , Krzysztof Kozlowski , Matthias Brugger Subject: Re: [PATCH] arm64: dts: mt7622: fix switch probe on bananapi-r64 Message-ID: References: <750a60a6-4585-4bd2-97be-cf944e51fbdb@leemhuis.info> <9c498e37-df8b-469e-818a-9b1c9f2b1a3c@collabora.com> <1aedb1d4-8dc3-4e17-aff1-7cc417465967@arinc9.com> <130518e2-d6dd-49ed-9cc2-ca9cdec93b98@leemhuis.info> <2076f699540c3c9d10effdb8b55d3f89@arinc9.com> <921f448b-4085-4c8d-85f8-478318d9c054@kernel.org> Precedence: bulk X-Mailing-List: linux-kernel@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: <921f448b-4085-4c8d-85f8-478318d9c054@kernel.org> Hi, On Tue, Jul 30, 2024 at 06:04:12PM +0200, Krzysztof Kozlowski wrote: > On 30/07/2024 13:22, arinc.unal@arinc9.com wrote: > > [...] > > In my view, your behaviour of not applying a devicetree patch before a > > Linux driver patch was applied, and then not replying to any arguments > > whatsoever, was keeping the devicetree files hostage until your demands > > Hm, why ever DTS patch should be applied before driver patch is? This > clearly suggests ABI break. You proposed to fix ABI issue by fixing DTS, > which is not the way, because it literally fixes nothing. You got > comments - fix the driver to be backwards compatible. I've suggested a fix for the driver here: https://patchwork.kernel.org/project/netdevbpf/patch/f485d1d4f7b34cc2ebf3d60030d1c67b4016af3c.1720107535.git.daniel@makrotopia.org/ It has been tested and acknowledged by Arinc, hence a possible solution would be to apply it and there by restore compatibility with existing (broken) device trees.