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=-4.0 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS 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 D591EC433DB for ; Thu, 4 Mar 2021 20:06:06 +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 5794C64F78 for ; Thu, 4 Mar 2021 20:06:05 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 5794C64F78 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org 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 E921717DD; Thu, 4 Mar 2021 21:05:12 +0100 (CET) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa0.perex.cz E921717DD DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=alsa-project.org; s=default; t=1614888363; bh=RUOa+jhAmK+h73T8EOU9DsvhCI2E8Dn8FH/Ia3vJc3g=; h=References:In-Reply-To:From:Date:Subject:To:Cc:List-Id: List-Unsubscribe:List-Archive:List-Post:List-Help:List-Subscribe: From; b=Cm4ELpYcEuUzc8xyGfrLQpKwzbeqUsS+eL8E223ZnV8u+qvINMsR8RPXZjOGZ1c3x Cs6cIqlcCUVA/oLXg3Qaq0UEjF70WPfIsGDg6ayxAQupuwouYSZcNfaCbPDyR1hN5F oxfglYEfKSK5HOLStBvaN8UP5XUyKqqVQohPD8HA= Received: from alsa1.perex.cz (localhost.localdomain [127.0.0.1]) by alsa1.perex.cz (Postfix) with ESMTP id 5F887F8025B; Thu, 4 Mar 2021 21:05:12 +0100 (CET) Received: by alsa1.perex.cz (Postfix, from userid 50401) id 10FEDF80269; Thu, 4 Mar 2021 21:05:11 +0100 (CET) Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by alsa1.perex.cz (Postfix) with ESMTPS id 3CEE9F80227 for ; Thu, 4 Mar 2021 21:05:03 +0100 (CET) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa1.perex.cz 3CEE9F80227 Authentication-Results: alsa1.perex.cz; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="Z/ZCNH1i" Received: by mail.kernel.org (Postfix) with ESMTPSA id 6AFFC64F6F for ; Thu, 4 Mar 2021 20:05:00 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1614888300; bh=RUOa+jhAmK+h73T8EOU9DsvhCI2E8Dn8FH/Ia3vJc3g=; h=References:In-Reply-To:From:Date:Subject:To:Cc:From; b=Z/ZCNH1ifsYXMOqxSS+vwP879iLQBcDXyn1H/7QusIM5zsOkA7artXq5whqVPK460 7A8gdRsO3HwpoqhfpDCn9iGRqzvTMilw5fXHzT0b3HmP24fJAfw30dabM/sqJQvBs1 fFLMfhAu/Y34199XaYjzJcW8aJAwpR2Br+UMtU0KVQC0ZEQFbZXvMaUivSNKE0uO2p VjkgHAjNRqucjOwH4H1+d5MljrZ1OLodWXPUpx7JFxjcmivEpct/YbbN5rw83bDZPQ gJSXGku2c6Yn+AWwWafPqIIrHgnsrKILLqyJIqjZShQRaHDng7AjPyJpHk7RJOku0+ WT8qKoRn+iwKg== Received: by mail-ed1-f54.google.com with SMTP id w9so20425240edt.13 for ; Thu, 04 Mar 2021 12:05:00 -0800 (PST) X-Gm-Message-State: AOAM530CCnR4mMc0HicMUiKTgDbvNt2hxBebxefHPK0iUlsNiKS8K2mO PQttr8AqzkJl3Ghmga7RP9keQQOJg2DQD1vW2w== X-Google-Smtp-Source: ABdhPJyT+WJus7T3jwrxrdTRd/Zm7drWY1Nq415cI9il3xyb1hXROafInBX/zusYrRdtrHQ0uWkFNttElXzFgzzJpBM= X-Received: by 2002:aa7:d3d8:: with SMTP id o24mr6306044edr.165.1614888299086; Thu, 04 Mar 2021 12:04:59 -0800 (PST) MIME-Version: 1.0 References: <1612693435-31418-1-git-send-email-shengjiu.wang@nxp.com> <1612693435-31418-8-git-send-email-shengjiu.wang@nxp.com> <20210210221704.GA2894134@robh.at.kernel.org> In-Reply-To: From: Rob Herring Date: Thu, 4 Mar 2021 14:04:33 -0600 X-Gmail-Original-Message-ID: Message-ID: Subject: Re: [PATCH v2 7/7] ASoC: dt-bindings: imx-rpmsg: Add binding doc for rpmsg machine driver To: Shengjiu Wang Content-Type: text/plain; charset="UTF-8" Cc: "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" , Linux-ALSA , Timur Tabi , Xiubo Li , Fabio Estevam , Shengjiu Wang , Takashi Iwai , Liam Girdwood , linux-kernel , Nicolin Chen , Mark Brown , linuxppc-dev 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: , Errors-To: alsa-devel-bounces@alsa-project.org Sender: "Alsa-devel" On Thu, Feb 18, 2021 at 1:23 AM Shengjiu Wang wrote: > > On Thu, Feb 11, 2021 at 6:18 AM Rob Herring wrote: > > > > On Sun, Feb 07, 2021 at 06:23:55PM +0800, Shengjiu Wang wrote: > > > Imx-rpmsg is a new added machine driver for supporting audio on Cortex-M > > > core. The Cortex-M core will control the audio interface, DMA and audio > > > codec, setup the pipeline, the audio driver on Cortex-A core side is just > > > to communitcate with M core, it is a virtual sound card and don't touch > > > the hardware. > > > > I don't understand why there are 2 nodes for this other than you happen > > to want to split this into 2 Linux drivers. It's 1 h/w thing. > > This one is for the sound card machine driver. Another one is > for the sound card cpu dai driver. so there are 2 nodes. You are explaining this to me in terms of drivers. Explain it in terms of h/w blocks. Rob