From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (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 94DA03ACF14 for ; Wed, 24 Jun 2026 09:56:04 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1782294965; cv=none; b=AEJDFRASzZDcAKohCFgf4Zm8SjPrwDtmTCN2c4CuqC09qQYPAE1m/AgHMyFhFdMDpnVWNeS3EMou5I4723aPt+oFmQ/acwLUqxUUQDW84Q/H+sNvr9iFU1BJCKzVUu0f6ZBgo9dtI3hJBBx2D3gi3eMHvSD7cplq2C7Lpuex1fQ= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1782294965; c=relaxed/simple; bh=OzVCwfnMAoBlzK1ov5G7MjYeOXFCIWNwhHZE/Ynicm4=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=qrBR72w1kMSjQRjUkmEP5a05bmjaT63Jtj7Wgvw2Q4FQDKTA1Io1CzQpyIC9Tzh41cAHsPAgiCvExDh5G5rUOxvduUaP5+5cSFgavLTwHcq/NtQ48zqRH0LgdzwdYDAJMqHxHEEgpuuZSdURmUy2lzK2r/SN9hVe/fpVgjihRpU= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=BFWx6ziD; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="BFWx6ziD" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 2A6961F000E9; Wed, 24 Jun 2026 09:55:59 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1782294964; bh=ao0IW8PudkvZhIg7FJjS9qXoAZ0U6ofRDSqlRSvtv0w=; h=Date:Subject:To:Cc:References:From:In-Reply-To; b=BFWx6ziDmLS0WT8hHgZH/d1ym+UbdIy8GJyppeh7k2yxEi1zTxidi5WaqF8HXysaM zXzlcsNsR2njB20nSn/xSe7Xb9zDeTHbkOQNAG+AjQaAmO19svZFgquP/sBaxhOGdJ MNR6CZwgPw6oETEkrQ+vUbVsygT89y0pnLY8ERTFA87rwBpYh1KvUdeAJdMft9/fZz V/AXcbzLMNfHjHQxMVhQfdFEiKw9j86d0Cggqr7XM+3wRZF5kBQ649bIXXk5olAc+o QU7GNpuDEv/KZ8NLFzNELfgHujTo6SFBCjEzijCxpoZ8XgCekavxR0fW6NskzffJ4G NsN5U/UNAIP4A== Message-ID: <07254a60-8abf-4762-b534-14d671121cf6@kernel.org> Date: Wed, 24 Jun 2026 11:55:57 +0200 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 v2] mux: gpio-mux: add support for 4:1 2-channels mux To: Tommaso Merciai Cc: Linus Walleij , Andrea Tomassetti , "johan+linaro@kernel.org" , "linux-kernel@vger.kernel.org" , "peda@axentia.se" , "srini@kernel.org" , Krzysztof Kozlowski , Greg Kroah-Hartman , Philipp Zabel , Ulf Hansson , Geert Uytterhoeven References: <20260506123350.310564-1-andrea.tomassetti@sipearl.com> <9fe9ac21-f509-43f0-b8a3-22d38efc852c@sipearl.com> <63c011e2-ad41-482a-9034-a3921b44e62f@kernel.org> From: Krzysztof Kozlowski Content-Language: en-US Autocrypt: addr=krzk@kernel.org; keydata= xsFNBFVDQq4BEAC6KeLOfFsAvFMBsrCrJ2bCalhPv5+KQF2PS2+iwZI8BpRZoV+Bd5kWvN79 cFgcqTTuNHjAvxtUG8pQgGTHAObYs6xeYJtjUH0ZX6ndJ33FJYf5V3yXqqjcZ30FgHzJCFUu JMp7PSyMPzpUXfU12yfcRYVEMQrmplNZssmYhiTeVicuOOypWugZKVLGNm0IweVCaZ/DJDIH gNbpvVwjcKYrx85m9cBVEBUGaQP6AT7qlVCkrf50v8bofSIyVa2xmubbAwwFA1oxoOusjPIE J3iadrwpFvsZjF5uHAKS+7wHLoW9hVzOnLbX6ajk5Hf8Pb1m+VH/E8bPBNNYKkfTtypTDUCj NYcd27tjnXfG+SDs/EXNUAIRefCyvaRG7oRYF3Ec+2RgQDRnmmjCjoQNbFrJvJkFHlPeHaeS BosGY+XWKydnmsfY7SSnjAzLUGAFhLd/XDVpb1Een2XucPpKvt9ORF+48gy12FA5GduRLhQU vK4tU7ojoem/G23PcowM1CwPurC8sAVsQb9KmwTGh7rVz3ks3w/zfGBy3+WmLg++C2Wct6nM Pd8/6CBVjEWqD06/RjI2AnjIq5fSEH/BIfXXfC68nMp9BZoy3So4ZsbOlBmtAPvMYX6U8VwD TNeBxJu5Ex0Izf1NV9CzC3nNaFUYOY8KfN01X5SExAoVTr09ewARAQABzSVLcnp5c3p0b2Yg S296bG93c2tpIDxrcnprQGtlcm5lbC5vcmc+wsGPBBMBCgA5AhsDBgsJCAcDAgYVCAIJCgsE FgIDAQIeAQIXgBYhBJvQfg4MUfjVlne3VBuTQ307QWKbBQJp2mE8AAoJEBuTQ307QWKbeaIP /ihHTkTW4KsN/DQ945JJbyu5tI0J80Wue7QyyLPglyKfhgb5cLLNPpOC8cCIJsc7+W3i2P38 s2c1cOH6CYGE7E9ur3Vfme8NW2S2I/Z8VC7bZnzyS23wT17LrsdS/qCpx4o8U+pt/xdXDKph EGRYrIEmMpUWvyYzyYKGIe25FtaayIIKpq8eZYyFcp2f/sG5IkOW5uZzHPMPdcm87jU7fyuQ rAU2vx9r+ulUfQ/q9Z2roC/ode3l7t2pN7BCBCsUDp6JCrUyZrtT1e7EbA0ZRP3aOBNk2P2E DQOgJGjGdO5Yx2Y9LFtltu6JbsBJHi1syGRX3AtQYOMc4Y1WGoeZJmMlvKj2ZqqXNkcWi2DS IQEWB0uW6CqFsBBIMGDa+6OzdaVO/uAVXWDWml02Men3CILdI1MbVjoh8ECqYUY7OQ+JJvNN vnliuq5WM3Ghd3jg/LZZrxXjdIginRHFQCjIJYLKpLZWm1/iDFedcfzqRNYmTtqscdCNHW41 oT3Z7BmO9xwdjuwBS6nmS6JJwkbf5Ot2QR4pB/DRU7ZwjT1qHe+9r9gF32wXVQatHNGK/VVu sfwOnkdxCWkp/qb2gdQRmZh+SedStWshigH6sNfuHBloF/q+hjMRc8b2m326OZdrbSHwY1Sz vti8Hn7n8NjdHO9LKB7BIdjkA9DA5WsqOuVCzsFNBFVDXDQBEADNkrQYSREUL4D3Gws46JEo Z9HEQOKtkrwjrzlw/tCmqVzERRPvz2Xg8n7+HRCrgqnodIYoUh5WsU84N03KlLueMNsWLJBv BaubYN4JuJIdRr4dS4oyF1/fQAQPHh8Thpiz0SAZFx6iWKB7Qrz3OrGCjTPcW6eiOMheesVS 5hxietSmlin+SilmIAPZHx7n242u6kdHOh+/SyLImKn/dh9RzatVpUKbv34eP1wAGldWsRxb f3WP9pFNObSzI/Bo3kA89Xx2rO2roC+Gq4LeHvo7ptzcLcrqaHUAcZ3CgFG88CnA6z6lBZn0 WyewEcPOPdcUB2Q7D/NiUY+HDiV99rAYPJztjeTrBSTnHeSBPb+qn5ZZGQwIdUW9YegxWKvX XHTwB5eMzo/RB6vffwqcnHDoe0q7VgzRRZJwpi6aMIXLfeWZ5Wrwaw2zldFuO4Dt91pFzBSO IpeMtfgb/Pfe/a1WJ/GgaIRIBE+NUqckM+3zJHGmVPqJP/h2Iwv6nw8U+7Yyl6gUBLHFTg2h YnLFJI4Xjg+AX1hHFVKmvl3VBHIsBv0oDcsQWXqY+NaFahT0lRPjYtrTa1v3tem/JoFzZ4B0 p27K+qQCF2R96hVvuEyjzBmdq2esyE6zIqftdo4MOJho8uctOiWbwNNq2U9pPWmu4vXVFBYI GmpyNPYzRm0QPwARAQABwsF2BBgBCgAgAhsMFiEEm9B+DgxR+NWWd7dUG5NDfTtBYpsFAmna YUkACgkQG5NDfTtBYptX+BAApg32CkxwNucNEi8WfWA8oKkW0y8YDuY6ORMo9FWNGiT/OTy0 vyJrLocrpn86zwfjVp+eCrssPYh8eqJfnWqmYv6ACQtHPYzPZQ3mSo8H97Z01oUxITzCxpXm ZkLgPIqtDPcC2E3dPM/fVxcyowM8XsaMA9wcsaUYrta8toOq2b9tKcjleKMfMrm0gQ9u7wUc QbLkwj6TCLOwucb07GXzLTNF9PZmaDUpKAZjMjmrW+le+SFvQbhamx0rxLWPR0NWntXpbCn+ +ACch03p/JyTBVktxFsFyCt7pTPE1kEaeuXBTe/a2D9iQvRxRW19LvuO2e59/u1wYUiH/orz wbIC2S4dBsPAPihL3ztOU1yE86GPyQtSE0kU+/7snnLt4QGi6PChf3t5gnNjAzjUUovO8rgI c+5yN5heq5loYHgK6OQ9OlHzsPHO9e9MOQcKlFycs1pyijFGzDwdNUm/SchK8iWT2QApTx4A K9bCVaboTA2T77QYkRcRJYSsO1alGX0ome/hMLD1daXlkrNUp1HWa3K4iytLRXjCSIorWiGs n+q3krnpXu3TFkA8qtOFZMdnIiFuiq1yLT8hptsV5xh1TA2nsVvSYiaCr3q4s4BKjS/KrLDb qoxzw8ISjdUp4pA85vb6YLCmb39NgidD+7PmAr65lBNveIFynTgsja1rRQ4= In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit On 23/06/2026 18:44, Tommaso Merciai wrote: > Hi Krzysztof, > > Sorry for the late reply. > > On Fri, Jun 19, 2026 at 05:51:13AM +0200, Krzysztof Kozlowski wrote: >> On 18/06/2026 15:27, Tommaso Merciai wrote: >>> Hi Linus, >>> Thanks for your comment, >>> >>> On Thu, Jun 18, 2026 at 03:04:20PM +0200, Linus Walleij wrote: >>>> On Wed, Jun 17, 2026 at 3:09 PM Tommaso Merciai >>>> wrote: >>>> >>>>>> If Peter is unable to attend to it send a pull request to the SoC >>>>>> tree (if this concerns an SoC) and explain the situation and the >>>>>> SoC maintainers can pull it in while we are looking for a new >>>>>> mux (co)maintainer. Unless you're interested in the job? >>>>> >>>>> I have the same issue with [1]. >>>>> >>>>> Starting from [2] (Date: Wed, 5 Nov 2025) >>>>> I have never received any feedback. >>>>> >>>>> How should I proceed? >>>> >>>> If Greg can ACK patch 1/2 we can probably merge this set through the >>>> SoC tree as well. If the PWM subsystem is practically orphaned we >>>> need to step in and merge stuff. >>> >>> +Cc GregKH >>> >>> What is your suggestion here? >>> Thank all. >> >> In the past I took a few MUX patches and then send them further to Greg. >> I did it once and then kind of did not continue. I could do that again, >> but it won't really solve the problem that MUX needs person actively >> looking at this. Me taking patches is rather band-aid and I do not have >> particular business interests around MUX. But maybe you or Renesas have >> and could help here? > > Thank you for the context. I understand your position, being a > band-aidmaintainer without direct business interest is not a sustainable > solutionfor the MUX subsystem long term. No, you did not get the point. Why shall we take this unmaintained code? I know you have reasons (you want), but what are the reasons for us? > > That said, this patch has now been blocked for more than 6 months, And? This does not mean I should take it. > and we are looking for a way to get it upstream. Since you mentioned > you have picked MUX patches before and routed them through the SoC tree > to Greg, would you bewilling to do the same here? > > It would unblock us while the question of active MUX maintainership is > sorted out separately. No. Every other case was following the same process "let's just unblock my work" and never fixed the actual problem of someone devoting time to take care of this stuff. If there is no one looking at this, we should consider removing it. > > +Cc: Geert, Philipp, Ulf > > Geert, what is your take on this? Would you prefer to route it through I will object when renesas sends it to SoC. > your tree instead, or do you think Krzysztof picking it via the SoC tree > makes more sense? Probably my "no" in this reply feel harsh, but I started in polite way trying to move it to right direction and you opposed doing standard vendor throw-over-the-wall approach. You want to solve only your problem. Well, I don't want to solve your problem, so if you do not intend to solve our problem, let's just move on and skip this code. > > I believe it is better handled by the experts in that area, P Zabel, Ulf, > Geert, and others. > > Thanks to both of you for considering this. Best regards, Krzysztof