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=-5.1 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE, SPF_PASS,USER_AGENT_SANE_1 autolearn=ham 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 1226DC433E0 for ; Fri, 12 Jun 2020 08:00:55 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id E0047207D8 for ; Fri, 12 Jun 2020 08:00:54 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="KpLD6GPa" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726445AbgFLIAw (ORCPT ); Fri, 12 Jun 2020 04:00:52 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:52488 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726264AbgFLIAv (ORCPT ); Fri, 12 Jun 2020 04:00:51 -0400 Received: from mail-pf1-x442.google.com (mail-pf1-x442.google.com [IPv6:2607:f8b0:4864:20::442]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 8F9E0C03E96F for ; Fri, 12 Jun 2020 01:00:51 -0700 (PDT) Received: by mail-pf1-x442.google.com with SMTP id 23so3920686pfw.10 for ; Fri, 12 Jun 2020 01:00:51 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to:user-agent; bh=tf6ndzUcORoBXdwJ742om4LN/SmZ3Qj0kiAjVJpLMKc=; b=KpLD6GPa1LiJdiGXWZtlAf3FCCQaL2P+jEHXZXpY0DK6/JwqBCfMEUa6SycwKn36pV fIU7NQzgMPjlZDT6/IgfHOy47FlKgE318Lpks/2XmKxd5ssYI/JhxLhUQ75NrwSA+FgI WwR9W/Kd/eb/WW1vtpNmQ9luP94CdVn8iknLZhGVcTLxXCE6AOHNN7mJqKJ9Lc/iCNKJ AmEDtdeCOQrtGcSJIcVAUggLVeknItOjsof4ZZKoN+u8vQ8mGV1UW+HWOCH9ZqIxe4wq 8t6k+b6hVLXOTtMTvWBax2XusbsF8sNZOXOOhxUDzzwcEiUU8r0WY8sevY40vdjtQHLE pVzQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to:user-agent; bh=tf6ndzUcORoBXdwJ742om4LN/SmZ3Qj0kiAjVJpLMKc=; b=OH/gS+8gDWVTIOUrmppywOyUJLO6dsNpwWK9Pa8gMGINzfzwNYF0IXuTu1I2HZWlty hS9M7xfiFzojGV/RDarvx+U2aJ8UA+6CaQ1d3b95m4KUGaRia5cVwlbf1Lom7kEpOOii ecZDSOc+QBptqNP2pBdyoCEK7sdSzmM0N/qeHEN4KiWOkJoM8rItEPwAJttv3u8W7Ik4 adcZzQ/dzOZXABVM3huLQwmaFO5dFnO6XsUf8TgEEDbGjMAOz8VCBBPhK+J0+7w8yWAZ rOTmIGyQG+uYlThQTyKcjbF+2UFy/XVq+V3nZbYLlc2e2Wb3WOkISZXOmc2bzTwj6b+V rGvw== X-Gm-Message-State: AOAM532VM92R9+K2uQfUVvqi02j/aGuZRzSVof/KIBbmDX4kRHbqHmgV L64l+bljilKCnHwWXd74Tfg= X-Google-Smtp-Source: ABdhPJw376HozhA54nKnNRb/izTEe/+VX9TjxpQMNrnO9HjCzAoOeOAkAY3whh0s2i+FcSh4Kp67PA== X-Received: by 2002:a63:4f1b:: with SMTP id d27mr9654512pgb.389.1591948851063; Fri, 12 Jun 2020 01:00:51 -0700 (PDT) Received: from Asurada-Nvidia (searspoint.nvidia.com. [216.228.112.21]) by smtp.gmail.com with ESMTPSA id ca6sm4579180pjb.46.2020.06.12.01.00.50 (version=TLS1_2 cipher=ECDHE-ECDSA-CHACHA20-POLY1305 bits=256/256); Fri, 12 Jun 2020 01:00:50 -0700 (PDT) Date: Fri, 12 Jun 2020 01:00:38 -0700 From: Nicolin Chen To: Shengjiu Wang Cc: lars@metafoo.de, perex@perex.cz, tiwai@suse.com, lgirdwood@gmail.com, broonie@kernel.org, timur@kernel.org, Xiubo.Lee@gmail.com, festevam@gmail.com, alsa-devel@alsa-project.org, linux-kernel@vger.kernel.org, linuxppc-dev@lists.ozlabs.org Subject: Re: [RFC PATCH v3 1/4] ASoC: soc-card: export snd_soc_lookup_component_nolocked Message-ID: <20200612080037.GA22422@Asurada-Nvidia> References: <55f6e0d76f67a517b9a44136d790ff2a06b5caa8.1591947428.git.shengjiu.wang@nxp.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <55f6e0d76f67a517b9a44136d790ff2a06b5caa8.1591947428.git.shengjiu.wang@nxp.com> User-Agent: Mutt/1.9.4 (2018-02-28) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Jun 12, 2020 at 03:37:48PM +0800, Shengjiu Wang wrote: > snd_soc_lookup_component_nolocked can be used for the DPCM case > that Front-End needs to get the unused platform component but > added by Back-End cpu dai driver. > > If the component is gotten, then we can get the dma chan created > by Back-End component and reused it in Front-End. > > Signed-off-by: Shengjiu Wang Reviewed-by: Nicolin Chen