From patchwork Wed Dec 9 05:34:50 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Liao, Bard" X-Patchwork-Id: 340384 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=-11.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, USER_AGENT_GIT 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 47519C433FE for ; Wed, 9 Dec 2020 05:36:15 +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 CBD6723B77 for ; Wed, 9 Dec 2020 05:36:13 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org CBD6723B77 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 470D816B8; Wed, 9 Dec 2020 06:35:21 +0100 (CET) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa0.perex.cz 470D816B8 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=alsa-project.org; s=default; t=1607492171; bh=tWKneUxYJkSM1u0rWOK1pKsWdt7p2csPClnmdcplUI0=; h=From:To:Subject:Date:Cc:List-Id:List-Unsubscribe:List-Archive: List-Post:List-Help:List-Subscribe:From; b=uB4zgqUbCTXS8qMgSJfiUJGEob78yGcOpZsCICKkrPBjFMohTJqIhsw7iiOTNQWjz PJIB6jto7QPAaXbrYzZ7PQPUhKrtjy1jF3qkyvDng95O49t6hSHzgIxjxSPVYjo9Bv CgZXmOcIzNy84ls/0PJBsrEcr9o8LudfnMVBCfBo= Received: from alsa1.perex.cz (localhost.localdomain [127.0.0.1]) by alsa1.perex.cz (Postfix) with ESMTP id 9711FF801D8; Wed, 9 Dec 2020 06:35:20 +0100 (CET) Received: by alsa1.perex.cz (Postfix, from userid 50401) id 7F970F80217; Wed, 9 Dec 2020 06:35:18 +0100 (CET) Received: from mga12.intel.com (mga12.intel.com [192.55.52.136]) (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 15F42F800EF for ; Wed, 9 Dec 2020 06:35:14 +0100 (CET) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa1.perex.cz 15F42F800EF IronPort-SDR: Gg1j4tRY71gwnR/mvcMp7T9IgXl+RkhGDBiPFgchlUnj0ZWRPyigJuUo4MrY4x111lTae4eBvs 3/JCekxaENyg== X-IronPort-AV: E=McAfee;i="6000,8403,9829"; a="153258974" X-IronPort-AV: E=Sophos;i="5.78,404,1599548400"; d="scan'208";a="153258974" Received: from orsmga008.jf.intel.com ([10.7.209.65]) by fmsmga106.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 08 Dec 2020 21:35:09 -0800 IronPort-SDR: 9BujQTugYI4F6TxRMgLypp+yg5AquOmJmtBNYa8+psoQM10SUE7R/27xy3kOR51Ps0LlZ5beao dZhZd2We/tUg== X-IronPort-AV: E=Sophos;i="5.78,404,1599548400"; d="scan'208";a="363989360" Received: from bard-ubuntu.sh.intel.com ([10.239.13.33]) by orsmga008-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 08 Dec 2020 21:35:06 -0800 From: Bard Liao To: alsa-devel@alsa-project.org, vkoul@kernel.org Subject: [PATCH v2 0/9] soundwire/regmap: use _no_pm routines Date: Wed, 9 Dec 2020 13:34:50 +0800 Message-Id: <20201209053459.5515-1-yung-chuan.liao@linux.intel.com> X-Mailer: git-send-email 2.17.1 Cc: pierre-louis.bossart@linux.intel.com, vinod.koul@linaro.org, tiwai@suse.de, gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, ranjani.sridharan@linux.intel.com, hui.wang@canonical.com, broonie@kernel.org, srinivas.kandagatla@linaro.org, jank@cadence.com, sanyog.r.kale@intel.com, rander.wang@linux.intel.com, bard.liao@intel.com 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" 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. This series touches both soundwire and regmap trees. commit fb5103f9d6ce ("regmap/SoundWire: sdw: add support for SoundWire 1.2 MBQ") is needed for soundwire tree to complie. On the other hands, commit 6e06a85556f9 ("soundwire: bus: add comments to explain interrupt loop filter") to commit 47b8520997a8 ("soundwire: bus: only clear valid DPN interrupts") are needed for regmap tree. v2: - Separate commits according to maintainer's comments. Bard Liao (4): soundwire: export sdw_write/read_no_pm functions regmap: sdw: use _no_pm functions in regmap_read/write regmap: sdw: use no_pm routines for SoundWire 1.2 MBQ regmap: sdw-mbq: use MODULE_LICENSE("GPL") Pierre-Louis Bossart (5): soundwire: bus: use sdw_update_no_pm when initializing a device soundwire: bus: use sdw_write_no_pm when setting the bus scale registers soundwire: bus: use no_pm IO routines for all interrupt handling soundwire: bus: fix confusion on device used by pm_runtime soundwire: bus: clarify dev_err/dbg device references drivers/base/regmap/regmap-sdw-mbq.c | 10 +- drivers/base/regmap/regmap-sdw.c | 4 +- drivers/soundwire/bus.c | 136 +++++++++++++++------------ include/linux/soundwire/sdw.h | 2 + 4 files changed, 85 insertions(+), 67 deletions(-)