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=-2.3 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_SANE_1 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 B2219C2D0DB for ; Fri, 24 Jan 2020 17:04:07 +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 3E0E22072C for ; Fri, 24 Jan 2020 17:04:07 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=alsa-project.org header.i=@alsa-project.org header.b="gjg62Hv4" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 3E0E22072C Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=codethink.co.uk 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 642C71664; Fri, 24 Jan 2020 18:03:15 +0100 (CET) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa0.perex.cz 642C71664 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=alsa-project.org; s=default; t=1579885445; bh=NaV5tHK0PIfXXJxne7tBZkttHt12EUoSTttqhvBXxfU=; h=To:References:From:Date:In-Reply-To:Cc:Subject:List-Id: List-Unsubscribe:List-Archive:List-Post:List-Help:List-Subscribe: From; b=gjg62Hv4NJ3NVtqtfkl9fECnJxyVENb0iLMX8ZDnlDYLqjUUNY5z3KCeWdLcpkfPy YlDoLNPQOSxNfjUH/YvRXoQp8DuxLb2pbRJ8zuGl9S7miol+ZtLmaXA2cAVorKRqf4 TT8Q2tEHODeevaLGDUFnLa1a9JOui7M2W7U6gHoQ= Received: from alsa1.perex.cz (localhost.localdomain [127.0.0.1]) by alsa1.perex.cz (Postfix) with ESMTP id E7827F801D8; Fri, 24 Jan 2020 18:03:14 +0100 (CET) Received: by alsa1.perex.cz (Postfix, from userid 50401) id 01226F8020C; Fri, 24 Jan 2020 18:03:12 +0100 (CET) Received: from imap2.colo.codethink.co.uk (imap2.colo.codethink.co.uk [78.40.148.184]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by alsa1.perex.cz (Postfix) with ESMTPS id B698DF800F5 for ; Fri, 24 Jan 2020 18:03:10 +0100 (CET) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa1.perex.cz B698DF800F5 Received: from [167.98.27.226] (helo=[10.35.5.173]) by imap2.colo.codethink.co.uk with esmtpsa (Exim 4.92 #3 (Debian)) id 1iv2MO-0005ZJ-K0; Fri, 24 Jan 2020 17:03:08 +0000 To: Mark Brown , Jon Hunter References: <29db3df4-6f51-7c0f-1eef-90171f1d233a@codethink.co.uk> <9a5447e2-155c-7e6e-b8f1-95523c6f42c6@gmail.com> <680e2dfd-6f4f-5c96-63b7-97520961dc82@gmail.com> <0e0cd260e39ad293edb881da1c565510@codethink.co.uk> <507dcd5a-672b-61ac-aa7f-af5ff01accff@codethink.co.uk> <28cafc56-095b-68c6-638d-270608a2983f@codethink.co.uk> <9b3a0cdd-34c7-ecb4-4a26-268fd4a63041@codethink.co.uk> <26aeb591-e770-5e6a-5ee4-05414ae4ddc6@nvidia.com> <20200124170059.GB4918@sirena.org.uk> From: Ben Dooks Organization: Codethink Limited. Message-ID: <666737c3-69c8-3bd1-e7d3-5c845fe09e60@codethink.co.uk> Date: Fri, 24 Jan 2020 17:03:07 +0000 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.9.0 MIME-Version: 1.0 In-Reply-To: <20200124170059.GB4918@sirena.org.uk> Content-Language: en-GB Cc: linux-kernel@lists.codethink.co.uk, alsa-devel@alsa-project.org, Takashi Iwai , Liam Girdwood , Thierry Reding , Edward Cragg , linux-tegra@vger.kernel.org, Dmitry Osipenko Subject: Re: [alsa-devel] [Linux-kernel] [PATCH v5 2/7] ASoC: tegra: Allow 24bit and 32bit samples 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-Transfer-Encoding: 7bit Content-Type: text/plain; charset="us-ascii"; Format="flowed" Errors-To: alsa-devel-bounces@alsa-project.org Sender: "Alsa-devel" On 24/01/2020 17:00, Mark Brown wrote: > On Fri, Jan 24, 2020 at 04:56:41PM +0000, Jon Hunter wrote: > >> Yes that is going to be a problem. I assume that your codec wants a >> 256*fs MCLK? Maybe in that case you are better off having the codec >> drive the bit clock and fsync? Would be lovely, but tegra i2s clock slave is still on the list of things I have to get into the kernel (it doesn't work and no-one in the kernel currently uses it...) >> Is 24-bit critical to what you are doing? > >> Otherwise maybe we should drop the 24-bit support for now and just keep >> 32-bit. > > Removing the support because one particular board has limited clocks > isn't good - it'd be better to have components with clocking > restrictions impose constraints as needed. > -- Ben Dooks http://www.codethink.co.uk/ Senior Engineer Codethink - Providing Genius https://www.codethink.co.uk/privacy.html _______________________________________________ Alsa-devel mailing list Alsa-devel@alsa-project.org https://mailman.alsa-project.org/mailman/listinfo/alsa-devel