From patchwork Wed Apr 20 02:32:40 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Bard Liao X-Patchwork-Id: 12819651 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org 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 smtp.lore.kernel.org (Postfix) with ESMTPS id 29BD0C433F5 for ; Wed, 20 Apr 2022 02:35:02 +0000 (UTC) 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 65B83190A; Wed, 20 Apr 2022 04:34:10 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa0.perex.cz 65B83190A DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=alsa-project.org; s=default; t=1650422100; bh=de3CW2NHaO3Zlt6dACJu87GE5nxvTHKkn6BThHigbYQ=; h=From:To:Subject:Date:In-Reply-To:References:Cc:List-Id: List-Unsubscribe:List-Archive:List-Post:List-Help:List-Subscribe: From; b=gm2biT4RbmadbG4w/MrGsJMmq4Bg6uMge8idq2QWfDtXaPi2V62obHrC3roul1pBH eyFubYutc/EYLoQz3a7LVGl/oWsuFngvGmwSC2Sp7alM0SHnjjxAXQsffnGBcvgpA2 pqaUamtKlbPzI9ziub6U7mLWzlZ8+rGDveMierWw= Received: from alsa1.perex.cz (localhost.localdomain [127.0.0.1]) by alsa1.perex.cz (Postfix) with ESMTP id 68470F80516; Wed, 20 Apr 2022 04:33:16 +0200 (CEST) Received: by alsa1.perex.cz (Postfix, from userid 50401) id 16EC1F80511; Wed, 20 Apr 2022 04:33:15 +0200 (CEST) Received: from mga09.intel.com (mga09.intel.com [134.134.136.24]) (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 DC468F80254 for ; Wed, 20 Apr 2022 04:33:04 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa1.perex.cz DC468F80254 Authentication-Results: alsa1.perex.cz; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="RYRNdYA9" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1650421989; x=1681957989; h=from:to:cc:subject:date:message-id:in-reply-to: references; bh=de3CW2NHaO3Zlt6dACJu87GE5nxvTHKkn6BThHigbYQ=; b=RYRNdYA9VpIYvfeaIcpSC70rsz5n5EMIPXQaj4jODRizroE30RL6DjjF cPw9AyPFZTWL419WmL/7NjlvglMV0OVktNTQgICy5XtN035JsSus9aDTj HAGsVjm4fh1t6ppVOSfTTb/5Siz/vVAK+kV57dt4W8hXnba44H8Z5Pk7A NuR/rUHNhO6emWGhp6ZguCfpz5LuT/tC7MY0/aL4ao1/iI7sdO8Pnz6DJ H8uz6SciMbwJJUeh7vD3Pc8GXVEySIYAIANDCoqOD889WRNVEo3S8E8En 1bdU10VDuO0HM8eYTlbsWn2br7wpZvK0i256XBSLgVA2Y+tYp5RNN3mSw Q==; X-IronPort-AV: E=McAfee;i="6400,9594,10322"; a="263384320" X-IronPort-AV: E=Sophos;i="5.90,274,1643702400"; d="scan'208";a="263384320" Received: from orsmga006.jf.intel.com ([10.7.209.51]) by orsmga102.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 19 Apr 2022 19:33:03 -0700 X-IronPort-AV: E=Sophos;i="5.90,274,1643702400"; d="scan'208";a="529554573" Received: from bard-ubuntu.sh.intel.com ([10.239.185.57]) by orsmga006-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 19 Apr 2022 19:33:00 -0700 From: Bard Liao To: alsa-devel@alsa-project.org, vkoul@kernel.org Subject: [PATCH 2/3] soundwire: intel: disable WAKEEN in pm_runtime resume Date: Wed, 20 Apr 2022 10:32:40 +0800 Message-Id: <20220420023241.14335-3-yung-chuan.liao@linux.intel.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20220420023241.14335-1-yung-chuan.liao@linux.intel.com> References: <20220420023241.14335-1-yung-chuan.liao@linux.intel.com> Cc: vinod.koul@linaro.org, gregkh@linuxfoundation.org, pierre-louis.bossart@linux.intel.com, linux-kernel@vger.kernel.org, srinivas.kandagatla@linaro.org, sanyog.r.kale@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" From: Pierre-Louis Bossart When the manager device is pm_runtime resumed, we see a series of spurious wakes and attempts to resume the same device: soundwire_intel.link.0: intel_resume_runtime: start soundwire_intel.link.0: intel_link_power_up: powering up all links soundwire_intel.link.0: intel_link_power_up: first link up, programming SYNCPRD soundwire_intel.link.0: intel_shim_wake: WAKEEN disabled for link 0 soundwire_intel.link.0: intel_link_process_wakeen_event: pm_request_resume start soundwire_intel.link.0: intel_link_process_wakeen_event: pm_request_resume done soundwire_intel.link.0: intel_shim_wake: WAKEEN disabled for link 0 soundwire_intel.link.0: intel_link_process_wakeen_event: pm_request_resume start soundwire_intel.link.0: intel_link_process_wakeen_event: pm_request_resume done This sequence does not break anything but is totally unnecessary. Currently the wakes are only disabled after the peripheral generates a wake, e.g. for jack detection. If the resume is initiated by the host drivers as a result of userspace actions (play/record typically), we need to disable wake detection as well. Doing so prevents the spurious wakes and calls to pm_request_resume(). Signed-off-by: Pierre-Louis Bossart Reviewed-by: Ranjani Sridharan Reviewed-by: Rander Wang Signed-off-by: Bard Liao --- drivers/soundwire/intel.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/soundwire/intel.c b/drivers/soundwire/intel.c index 32e5fdb823c4..4b458e5e7336 100644 --- a/drivers/soundwire/intel.c +++ b/drivers/soundwire/intel.c @@ -1831,6 +1831,9 @@ static int __maybe_unused intel_resume_runtime(struct device *dev) return 0; } + /* unconditionally disable WAKEEN interrupt */ + intel_shim_wake(sdw, false); + link_flags = md_flags >> (bus->link_id * 8); multi_link = !(link_flags & SDW_INTEL_MASTER_DISABLE_MULTI_LINK);