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 Received: from lists.ozlabs.org (lists.ozlabs.org [112.213.38.117]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 8A2EFC2BD09 for ; Mon, 24 Jun 2024 09:25:02 +0000 (UTC) Authentication-Results: lists.ozlabs.org; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20201202 header.b=due3BtFl; dkim-atps=neutral Received: from boromir.ozlabs.org (localhost [IPv6:::1]) by lists.ozlabs.org (Postfix) with ESMTP id 4W72cC5xfJz3cWm for ; Mon, 24 Jun 2024 19:24:59 +1000 (AEST) Authentication-Results: lists.ozlabs.org; dmarc=pass (p=none dis=none) header.from=kernel.org Authentication-Results: lists.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20201202 header.b=due3BtFl; 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h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=due3BtFlFpfgKEoERX3fWNf4oJKGPBMwIoryIkimKottOc66Ck0FU7HIwTfLlCARG G7Xdx+V9429rz5iPhEqY/+CegI4X+wEYm4yDrP3NwShzKh0dK3PeYSp5nWzMrnxQK8 Fa3OrCbsREZxIuubaVRr2emrcHuwluCgtQnvMTcSZi4UOdoyMo0mQL9lAz/2zu2LFL 5b5ZfpDvx9DGr12lX4IZKCLWoCP/TEQknzrz1DQdIA5wpWGIZOu7JgakX3wcxVkXqd XxY6Kbe+AlhjcuKHcdVPO44im+ERbE2roQFjgyxxHDuXb6AnM+T5H5ca4Ielm2Ks1I 61To1rpQYfpqg== Message-ID: <1e26e816-5bb5-4592-8e2a-d5315bb7482d@kernel.org> Date: Mon, 24 Jun 2024 11:24:06 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCHv5 7/9] ASoC: dt-bindings: imx-audio-spdif: remove binding To: Elinor Montmasson References: <20240620132511.4291-1-elinor.montmasson@savoirfairelinux.com> <20240620132511.4291-8-elinor.montmasson@savoirfairelinux.com> <17a0efe3-72fa-4d13-b3b0-90e6640308f3@kernel.org> <1566099232.1714447.1719219107779.JavaMail.zimbra@savoirfairelinux.com> <42b32958-89ee-43b6-96d1-f3e18c7d8955@kernel.org> <1048207382.1714780.1719220717882.JavaMail.zimbra@savoirfairelinux.com> From: Krzysztof Kozlowski Content-Language: en-US Autocrypt: addr=krzk@kernel.org; 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charset=UTF-8 Content-Transfer-Encoding: 7bit X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: imx , alsa-devel , Xiubo Lee , Catalin Marinas , linux-kernel , Philip-Dylan Gleonec , shengjiu wang , Rob Herring , Will Deacon , Russell King , devicetree , Conor Dooley , Liam Girdwood , Sascha Hauer , linux-sound , Nicolin Chen , Mark Brown , Fabio Estevam , Jaroslav Kysela , linux-arm-kernel , linuxppc-dev , Takashi Iwai , Pengutronix Kernel Team , Krzysztof Kozlowski , Shawn Guo Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" On 24/06/2024 11:18, Elinor Montmasson wrote: >>> >>> Previous `imx-spdif` driver used the dummy codec instead of >>> using declared spdif codecs. It was discussed in previous version of this >>> contribution >>> that using the dummy codec isn't good practice. So one to one backward >>> compatibility >>> isn't really possible. >> >> Heh, that's not good. This is improvement, cleanup. While it is >> important and useful, it should also not break existing users. > > > Should I introduce then the use of the dummy codec in `fsl-asoc-card` to > assure backward compatibility at least for a time ? > With maybe warning messages in code to indicate that spdif codecs drivers > should be declared and used in the future ? > If it is doable (reasonable code), then yes, please keep backwards compatibility with old DTS. Best regards, Krzysztof