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 712D7C43603 for ; Tue, 17 Dec 2019 19:56:46 +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 E00C32072D for ; Tue, 17 Dec 2019 19:56:45 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=alsa-project.org header.i=@alsa-project.org header.b="ctPjkVfm" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org E00C32072D Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=linux.intel.com 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 211891670; Tue, 17 Dec 2019 20:55:54 +0100 (CET) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa0.perex.cz 211891670 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=alsa-project.org; s=default; t=1576612604; bh=CzsYBOuj/092iHL2hCcolPwr7APMrtJxNJ4AUZU62SU=; h=To:References:From:Date:In-Reply-To:Cc:Subject:List-Id: List-Unsubscribe:List-Archive:List-Post:List-Help:List-Subscribe: From; b=ctPjkVfmTqlPFQNHPTUdHqmaS+cI4lv2f3JJfMySOmvRAZfdvyq5U5Pukz1FIMpSE fcoDJUPH6LShbi8qXUrc/6SX9CSvc+er+MY7iJAEj2jEBuwrKNknfZmP+FIp2Axmv2 G7F9g1++YRYoOgjXAHUMR3MiI3fuW1pwmXpgNF04= Received: from alsa1.perex.cz (localhost.localdomain [127.0.0.1]) by alsa1.perex.cz (Postfix) with ESMTP id 7DA52F80266; Tue, 17 Dec 2019 20:54:17 +0100 (CET) Received: by alsa1.perex.cz (Postfix, from userid 50401) id 783F5F8025A; Tue, 17 Dec 2019 20:54:12 +0100 (CET) Received: from mga05.intel.com (mga05.intel.com [192.55.52.43]) (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 13D28F80088 for ; Tue, 17 Dec 2019 20:54:08 +0100 (CET) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa1.perex.cz 13D28F80088 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga005.jf.intel.com ([10.7.209.41]) by fmsmga105.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 17 Dec 2019 11:54:07 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.69,326,1571727600"; d="scan'208";a="389942477" Received: from vramados-mobl.amr.corp.intel.com (HELO [10.254.1.250]) ([10.254.1.250]) by orsmga005.jf.intel.com with ESMTP; 17 Dec 2019 11:54:05 -0800 To: Daniel Mack , linux-kernel@vger.kernel.org, linux-gpio@vger.kernel.org, linux-i2c@vger.kernel.org, alsa-devel@alsa-project.org, devicetree@vger.kernel.org, linux-clk@vger.kernel.org References: <20191209183511.3576038-1-daniel@zonque.org> From: Pierre-Louis Bossart Message-ID: Date: Tue, 17 Dec 2019 13:29:20 -0600 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.2.2 MIME-Version: 1.0 In-Reply-To: <20191209183511.3576038-1-daniel@zonque.org> Content-Language: en-US Cc: lars@metafoo.de, sboyd@kernel.org, mturquette@baylibre.com, robh+dt@kernel.org, broonie@kernel.org, pascal.huerst@gmail.com, lee.jones@linaro.org Subject: Re: [alsa-devel] [PATCH 00/10] mfd: Add support for Analog Devices A2B transceiver 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" > Transceivers can both receive and provide audio, and streams can be > routed from one node to any other, including many others. The tricky > bit is how to expose the audio routing in DT in a sane way. > The way it is implemented here, the slave nodes specify the number of > slots they each consume and generate, and which thereof they forward > from one side to the other. This mimics the internal register > structure and should allow for even exotic setups. It was my understanding that the A2B bus is bidirectional but with separate time windows allocated for host->device and device->host transmission. The wording seems to hint at device-to-device communication but I wonder if this is really what you meant. _______________________________________________ Alsa-devel mailing list Alsa-devel@alsa-project.org https://mailman.alsa-project.org/mailman/listinfo/alsa-devel