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=-8.5 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, INCLUDES_PATCH,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 C407FCA9ED0 for ; Sun, 3 Nov 2019 05:24:00 +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 83AF1215EA for ; Sun, 3 Nov 2019 05:23:59 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=alsa-project.org header.i=@alsa-project.org header.b="ZeUkGPZg"; dkim=fail reason="signature verification failed" (1024-bit key) header.d=kernel.org header.i=@kernel.org header.b="qQW3uyCl" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 83AF1215EA 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 6A21518B6; Sun, 3 Nov 2019 06:23:07 +0100 (CET) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa0.perex.cz 6A21518B6 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=alsa-project.org; s=default; t=1572758637; bh=ZkZTdVn8h6X4hAP8I2qiIuV4N88G6u+iGWoj/K/2E+o=; h=Date:From:To:References:In-Reply-To:Cc:Subject:List-Id: List-Unsubscribe:List-Archive:List-Post:List-Help:List-Subscribe: From; b=ZeUkGPZgKbvadbhhZqlKui4p2VkbObt/aGAlPLGDbLg7Cdit+b9xsiwYCJaNJ3uFK e7Tt6n7izLqLnu6zgaWxvB9hJ8iCGkw5HWd5EIR0wUP9MWHnOCzkrYowgdWSO3fxHO pVmSUdMpsXAOJIZrk9XAtA16TPmfWX0FLbaE2jOw= Received: from alsa1.perex.cz (localhost.localdomain [127.0.0.1]) by alsa1.perex.cz (Postfix) with ESMTP id B1AE4F80446; Sun, 3 Nov 2019 06:23:06 +0100 (CET) Received: by alsa1.perex.cz (Postfix, from userid 50401) id F07F0F80535; Sun, 3 Nov 2019 06:23:02 +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 9E221F8015B for ; Sun, 3 Nov 2019 06:22:54 +0100 (CET) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa1.perex.cz 9E221F8015B Authentication-Results: alsa1.perex.cz; dkim=pass (1024-bit key) header.d=kernel.org header.i=@kernel.org header.b="qQW3uyCl" Received: from localhost (unknown [106.206.115.146]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 031EE214D8; Sun, 3 Nov 2019 05:22:48 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1572758570; bh=Oqzo9tv0916Zywny7m8yNkHyuqH/rVT0IioPzWiyk2A=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=qQW3uyClIEkKDDRmnSOMh5Vy6tWu30EcjlSMXU7j+AXtC3ZLO96spvePoKnFVvNDq IP3RvtdtAu1ZIbtZCBBQ4lkz6bTPDAaqnSIZM6r84emnn5Ur5CMtJnPRMDB+4uKooL cHkJmH60CZEgTmXbCt1oBFEae7uWtAN89p/ArLfg= Date: Sun, 3 Nov 2019 10:52:43 +0530 From: Vinod Koul To: Pierre-Louis Bossart Message-ID: <20191103052243.GF2695@vkoul-mobl.Dlink> References: <20191023210657.32440-1-pierre-louis.bossart@linux.intel.com> <20191023210657.32440-3-pierre-louis.bossart@linux.intel.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20191023210657.32440-3-pierre-louis.bossart@linux.intel.com> User-Agent: Mutt/1.12.1 (2019-06-15) Cc: alsa-devel@alsa-project.org, tiwai@suse.de, gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, Ranjani Sridharan , broonie@kernel.org, srinivas.kandagatla@linaro.org, jank@cadence.com, slawomir.blauciak@intel.com, Sanyog Kale , Bard liao , Rander Wang Subject: Re: [alsa-devel] [PATCH 2/4] soundwire: add enumeration_complete structure 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-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: alsa-devel-bounces@alsa-project.org Sender: "Alsa-devel" On 23-10-19, 16:06, Pierre-Louis Bossart wrote: > We need an async mechanism to prevent access to Slaves that are not > fully-enumerated. > > init_completion() will be invoked when the Slave becomes UNATTACHED, > and complete() will be invoked when the state become ATTACHED. Any > read/write before this status change will be delayed with a > wait_for_completion(). > > Signed-off-by: Pierre-Louis Bossart > --- > include/linux/soundwire/sdw.h | 1 + > 1 file changed, 1 insertion(+) > > diff --git a/include/linux/soundwire/sdw.h b/include/linux/soundwire/sdw.h > index a381a596212b..1381edfaa206 100644 > --- a/include/linux/soundwire/sdw.h > +++ b/include/linux/soundwire/sdw.h > @@ -565,6 +565,7 @@ struct sdw_slave { > u16 dev_num; > bool probed; > struct completion probe_complete; > + struct completion enumeration_complete; Which series/patch uses this..? Thanks -- ~Vinod _______________________________________________ Alsa-devel mailing list Alsa-devel@alsa-project.org https://mailman.alsa-project.org/mailman/listinfo/alsa-devel