From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mailkram.bugwerft.de (mailkram.bugwerft.de [95.216.200.101]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 1529B2FF172 for ; Thu, 18 Dec 2025 08:27:43 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=95.216.200.101 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1766046466; cv=none; b=i28AIdwK0Rm30q9GczTn9GA0gi3orERnneNwBvD3sWUuUelQ54tQZxCMWhJkwqVSE49nPD/OCT7AspOv8RlHzEKG9mEwXFeXK5l+Oh1427SRL3xVOac/RP7/4KwMpk0zn5GfmmKyFTSuYDP2jRSwt04HqV3Oa0oMYQZk3iB9AiU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1766046466; c=relaxed/simple; bh=n41lyNSoQuYpdPqcvETyvQJamEbAi8/jglp1oEC2UoQ=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=UDXwOOAhcTMmU7xROm/0QGa1JNXpLJml+4N/ZsnVPORpSTZ/NLUSRDGBsJp44VCB2lTEqY8rX66XWGgNzTmXAcE4Df+yGpjzKQHzDTF6eTLPKMfkcBRbQrCGCMrHXOyJ52r5OOZ0I5DhwTCWKVcbjIz7MyXTPre1JxrNunvYzX4= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=zonque.org; spf=pass smtp.mailfrom=zonque.org; dkim=pass (1024-bit key) header.d=zonque.org header.i=@zonque.org header.b=LUsKvlne; arc=none smtp.client-ip=95.216.200.101 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=zonque.org Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=zonque.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=zonque.org header.i=@zonque.org header.b="LUsKvlne" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=zonque.org; s=mail; t=1766046096; bh=n41lyNSoQuYpdPqcvETyvQJamEbAi8/jglp1oEC2UoQ=; h=Date:Subject:To:Cc:References:From:In-Reply-To; b=LUsKvlneD1aEiZdlieFQ2we1bSEAq4rzRKwu1L+ljZIDhSuR3ua7gBOrbVXcNbyms JILQcubDuvtfgJHBBirMMIQHp7QYpu7Alcv1catZTk2u6Lm6TqrMqV0J6dy9ZpJJEH x6QMFcWQOizJXVVZ/GfCCjamnKXWDLvHMWcAuC/8= Received: from [10.10.3.104] (unknown [62.214.9.170]) by mailkram.bugwerft.de (Postfix) with ESMTPSA id 81A0B4168D; Thu, 18 Dec 2025 08:21:35 +0000 (UTC) Message-ID: <700e5050-aebe-4ca4-b02d-8ffacccf7045@zonque.org> Date: Thu, 18 Dec 2025 09:21:29 +0100 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH] ARM: dts: intel: Drop pxa2xx To: Arnd Bergmann , Robert Jarzmik , Rob Herring Cc: Geert Uytterhoeven , Magnus Damm , Krzysztof Kozlowski , Conor Dooley , Haojian Zhuang , Andrew Lunn , Gregory Clement , Sebastian Hesselbarth , Linux-Renesas , devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org References: <20251212203226.458694-4-robh@kernel.org> <35405ed3-1319-4d3a-84a5-ad67f4c823ad@app.fastmail.com> Content-Language: en-US From: Daniel In-Reply-To: <35405ed3-1319-4d3a-84a5-ad67f4c823ad@app.fastmail.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Hi, On 12/17/25 17:04, Arnd Bergmann wrote: > On Fri, Dec 12, 2025, at 22:58, Robert Jarzmik wrote: >> "Rob Herring (Arm)" writes: >> >>> These .dtsi files are not included anywhere in the tree and >>> can't be tested. They have not been touched since 2018 other than >>> clean-ups. >>> >> And yet, there are used by people using pxa2xx board with an DT >> support (like the mioa701 for which a board file was never merged). >> >> If you remove pxa25x.dtsi and pxa27x.dtsi, you might as well >> remove all support for this architecture from the kernel, as >> these are the building blocks needed to make it work. >> >> That might be what should be done, I'll let Arnd and Daniel >> comment on the future of PXA in the kernel. > > I agree with Rob that at the very minimum, any dtsi files in the > kernel should be build-tested along with the rest, so either > we add some dts files using them soon, or we can remove pxa2xx > (and maybe pxa3xx) completely. PXA3xx is in use by the Raumfeld boards, and I would really like to keep them around. For PXA2xx I'm torn. I don't have the capacity and hardware to work on those, but I don't know how many users are out there with out-of-tree dts files. > I already plan to remove the remaining board files for both > sa1100 and pxa soon, as nobody has picked up the task to do > any further DT conversion after we removed the majority of > the files back in 2022 and left only the ones that someone > said they'd be interested in keeping. > > Robert, let me know if you or someone else is able to spend > some time on sending (warning-free) dts files for pxa2xx > machines soon. If not, I'd plan to remove whatever is there > along with the board files and drivers. > > I also checked the pxa3xx Raumfeld devicetree support that > Daniel added in linux-3.7. The manufacturer's firmware > download page contains kernel images based on this work, > using a 4.19 kernel but built in 2022. If we remove pxa2xx > DT support, it would be good to find out if anyone still > plans to use something newer on that hardware, which may > happen because of CRA requirements. As I said, I would like to not close the door on this one if possible. Thanks, Daniel