From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-3.7 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE, SPF_PASS,URIBL_BLOCKED autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id A8FFDCA9EA0 for ; Fri, 25 Oct 2019 14:29:26 +0000 (UTC) Received: from alsa0.perex.cz (alsa0.perex.cz [77.48.224.243]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 303FF20684 for ; Fri, 25 Oct 2019 14:29:26 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=alsa-project.org header.i=@alsa-project.org header.b="oOnuYpJn" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 303FF20684 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=suse.de Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=alsa-devel-bounces@alsa-project.org Received: from alsa1.perex.cz (alsa1.perex.cz [207.180.221.201]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by alsa0.perex.cz (Postfix) with ESMTPS id 5ED2D1828; Fri, 25 Oct 2019 16:28:34 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa0.perex.cz 5ED2D1828 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=alsa-project.org; s=default; t=1572013764; bh=5Z7igvQH6fCGUYbfa/u2oVDYkcwQWuBKzjhVOTJBsAQ=; h=Date:From:To:In-Reply-To:References:Cc:Subject:List-Id: List-Unsubscribe:List-Archive:List-Post:List-Help:List-Subscribe: From; b=oOnuYpJnr+m3wqppdyP8oD8JloWj2MkWgk6o51jFQj0uAbLJ5vzk0MUkY+qJwQDPA AH6fIAWV3lMwV9tsXsJ9Vq7IN2et62N+FLiGxjJJAcjLezBQ1L1rfRzs0jT4aJKNKV QfX82wPOmoUg23172HTFdl7Iy32TXOsttNnDbRT8= Received: from alsa1.perex.cz (localhost.localdomain [127.0.0.1]) by alsa1.perex.cz (Postfix) with ESMTP id DA334F802A0; Fri, 25 Oct 2019 16:28:33 +0200 (CEST) Received: by alsa1.perex.cz (Postfix, from userid 50401) id 6132EF803A6; Fri, 25 Oct 2019 16:28:30 +0200 (CEST) Received: from mx1.suse.de (mx2.suse.de [195.135.220.15]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by alsa1.perex.cz (Postfix) with ESMTPS id 99767F802A0 for ; Fri, 25 Oct 2019 16:28:27 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa1.perex.cz 99767F802A0 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.220.254]) by mx1.suse.de (Postfix) with ESMTP id 7FC5FBC2C; Fri, 25 Oct 2019 14:28:26 +0000 (UTC) Date: Fri, 25 Oct 2019 16:28:26 +0200 Message-ID: From: Takashi Iwai To: Jaroslav Kysela In-Reply-To: <9403a6a7-9b7e-c2a4-5acf-50d6cbaea7c7@perex.cz> References: <20191025123038.19728-1-perex@perex.cz> <9403a6a7-9b7e-c2a4-5acf-50d6cbaea7c7@perex.cz> User-Agent: Wanderlust/2.15.9 (Almost Unreal) SEMI/1.14.6 (Maruoka) FLIM/1.14.9 (=?UTF-8?B?R29qxY0=?=) APEL/10.8 Emacs/25.3 (x86_64-suse-linux-gnu) MULE/6.0 (HANACHIRUSATO) MIME-Version: 1.0 (generated by SEMI 1.14.6 - "Maruoka") Cc: ALSA development , Mark Brown , Pierre-Louis Bossart Subject: Re: [alsa-devel] [PATCH] ASoC: change 'HDMI/DP, pcm=' to 'HDMI/DP, pcm=' Jack control names X-BeenThere: alsa-devel@alsa-project.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: "Alsa-devel mailing list for ALSA developers - http://www.alsa-project.org" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: alsa-devel-bounces@alsa-project.org Sender: "Alsa-devel" On Fri, 25 Oct 2019 16:18:20 +0200, Jaroslav Kysela wrote: > > Dne 25. 10. 19 v 16:06 Takashi Iwai napsal(a): > > On Fri, 25 Oct 2019 15:57:50 +0200, > > Jaroslav Kysela wrote: > >> > >> Dne 25. 10. 19 v 14:38 Takashi Iwai napsal(a): > >>> On Fri, 25 Oct 2019 14:30:38 +0200, > >>> Jaroslav Kysela wrote: > >>>> > >>>> There is an inconsistency in the names for the HDMI/DP Jack control > >>>> names between some ASoC drivers and the HDA HDMI driver which > >>>> introduced this naming in 2011. > >>>> > >>>> There might be an impact for the user space (UCM). I will fix > >>>> the UCM configurations when this patch is applied. > >>>> > >>>> Signed-off-by: Jaroslav Kysela > >>>> Cc: Mark Brown > >>>> Cc: Pierre-Louis Bossart > >>> > >>> Yes, that's a known problem, and I left them so far just for keeping > >>> the already existing stuff working. > >>> > >>> Won't this break the current Chromebooks user-space? > >> > >> I would really expect to upgrade UCM configs for the recent kernels in > >> this case. I believe, those sort of issues are better to fix early > >> than lately. I know, the transition might cause a little issues, but > >> usually "do upgrade answer" will help. I don't think that we speak > >> about a large group of users here. > > > > Well, that's obviously against our dont-breaking-user-space rule. > > The UCM profiles have been widely used on Chromebooks, and they can't > > upgrade easily. > > > > So, I believe this is a case where we have to live with messes. > > If we speak about Google's kernels, they can apply a revert (depends > on their upgrade/maintenance policy). If users use the standard Linux > distributions, then we are fine, don't we? No, we can't break the already existing user-space. That's what Linus suggested repeatedly over years, too. > I would make an exception for the dont-breaking-user-space policy in > this case. I am sure that the UCM configs will stabilize quickly. And > this bad jack name is against our control name policy. It's just a > bug. There is no exception for that, it's a so simple rule. If something gets *practically* broken by the kernel, it's no-go. User-space is user-space, and it doesn't matter whether it's upstream or not. And, even if everything is upstream, imagine that user installs two different kernels, and switches with each other occasionally for whatever reason. The UCM upgrade solution won't work, either. thanks, Takashi _______________________________________________ Alsa-devel mailing list Alsa-devel@alsa-project.org https://mailman.alsa-project.org/mailman/listinfo/alsa-devel