Received: by 2002:a05:6a10:8c0a:0:0:0:0 with SMTP id go10csp2619781pxb; Sat, 6 Feb 2021 02:31:14 -0800 (PST) X-Google-Smtp-Source: ABdhPJwu05JHwApVGyDHzL/xWHPq16pdlRfuVApR9RRoialEAt6X42IuBEqmGH+n8ceSaQ20eDhb X-Received: by 2002:a05:6402:149a:: with SMTP id e26mr7960248edv.254.1612607474526; Sat, 06 Feb 2021 02:31:14 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1612607474; cv=none; d=google.com; s=arc-20160816; b=o9le5WkD5YloeoVeryOiWG74/tcdao1jGF7AfRVbaxTdMQnA1qT49v1vSoPxhAUoRd yIrGTFcNYUcxkYFoeEGd5jUwWKwNWDy66OYRZoSMu2YyjAcPgNUdbtwUbYn2UchAXnGX RpZLX50IOH8qU8rcgZzRNRiKKBqFz8DPN2jx6//B3ttT3etKjOeE8HVaEvblfiPpQGIr j4eziIFLXo+eTuwsXF6qK/6xi2lTO2oVFsQ3pKThyOoKjIzILe7anEDZXcvPqhZyz/TD CMvcFiTjESMzTHAfDUfKe7yl8aV2QveLeS5YJ6MEbpyAj9FrcEnQxP3ytmygFs+bwyzP 3ZUw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:in-reply-to:content-disposition:mime-version :references:message-id:subject:cc:to:from:date:dkim-signature; bh=zlFffK6NFEWr4UAZNVtyqireJFUMWdSufTnsaAsKtbM=; b=KRYNhGNjBW1ZvLW6T8EgBYEHav16ffSj7X6GP+S6yfTPseOzmr1mtgtwcn9CrdksSM eBqernTSFAxmE3py9j7GgYe9t6VX+Tm2mD5ZyNw6nQgj7a9JXAFOYD7ZJ5YrudRICV08 YTVa8f7rCctpMrZoVlHEADNsZDSXkyFOi1V0+F9QkZQzsR49S4lAY4EEUMHdPBr0X+nH C/qsLmnf1BlW3Y7EdtzFDSP8DXR8DbVicMzYQ5ioRfUnefcKoig42DLX7X27pnY+nhtI G5EHD5jy86oI7mHR7VH6B/Z7Znv6RtivuH2JHXt6ordPxKJZTm9guuNlSgXuPexIJUCQ uBDw== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@kernel.org header.s=k20201202 header.b="J/XcP4g/"; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id l2si8386217ede.232.2021.02.06.02.30.50; Sat, 06 Feb 2021 02:31:14 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; dkim=pass header.i=@kernel.org header.s=k20201202 header.b="J/XcP4g/"; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229554AbhBFK1c (ORCPT + 99 others); Sat, 6 Feb 2021 05:27:32 -0500 Received: from mail.kernel.org ([198.145.29.99]:40926 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229508AbhBFK1a (ORCPT ); Sat, 6 Feb 2021 05:27:30 -0500 Received: by mail.kernel.org (Postfix) with ESMTPSA id 9CF7B64E30; Sat, 6 Feb 2021 10:26:48 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1612607209; bh=T+7tJ8N28DhBC0FiHzy9b548DcuDktyP9XhUL1tWkYo=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=J/XcP4g/U9mFvg324pexE9yyBaNcn+AX0V2hEa3UcbfSPCsvgmyH5xCpDu3nut+hL d4Zp9fhtqx1ieRP2AH7g7A/v1/cxfNckyq9cjYV1mP8Prq1wqAlC3TcRsuWXGmVMNe c9bStB+KS3ukTrm7U0BB9RqTkBWpd8LOgSNU/7cFvaAAv25Hbt6LbdhWtNpLf4nBhS pJNcISwFvMIso4J5IFFc2P8z6t8qiOF3gmDlGgIMUtyhHc/QEt76DXj6B0VCjRYS4E 0s3m+s++d9o/TJ9219EpOE2KoTfEqVtCTnZ2OWhjoZkqsvodF/hQ0WSB4nKaKf+PZt h6Pdkz7nsSuag== Date: Sat, 6 Feb 2021 15:56:44 +0530 From: Vinod Koul To: Bard Liao Cc: alsa-devel@alsa-project.org, linux-kernel@vger.kernel.org, tiwai@suse.de, broonie@kernel.org, gregkh@linuxfoundation.org, jank@cadence.com, srinivas.kandagatla@linaro.org, rander.wang@linux.intel.com, ranjani.sridharan@linux.intel.com, hui.wang@canonical.com, pierre-louis.bossart@linux.intel.com, sanyog.r.kale@intel.com, bard.liao@intel.com Subject: Re: [RESEND PATCH v2 0/9] soundwire/regmap: use _no_pm routines Message-ID: <20210206102644.GN2656@vkoul-mobl.Dlink> References: <20210122070634.12825-1-yung-chuan.liao@linux.intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20210122070634.12825-1-yung-chuan.liao@linux.intel.com> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 22-01-21, 15:06, Bard Liao wrote: > When a Slave device is resumed, it may resume the bus and restart the > enumeration. And Slave drivers will wait for initialization_complete > complete in their resume function, however initialization_complete will > complete after sdw_update_slave_status function is finished and codec > driver usually call some IO functions in the update_status callback > function. > It will become a deadlock if we use regular read/write routines during > the resuming process. Applied all sdw patches, thanks -- ~Vinod