From patchwork Mon Nov 11 22:33:40 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Pierre-Louis Bossart X-Patchwork-Id: 11237965 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id D445D14ED for ; Mon, 11 Nov 2019 22:35:46 +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 617ED2184C for ; Mon, 11 Nov 2019 22:35:46 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=alsa-project.org header.i=@alsa-project.org header.b="oPMj5P4G" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 617ED2184C 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 C8552167F; Mon, 11 Nov 2019 23:34:53 +0100 (CET) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa0.perex.cz C8552167F DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=alsa-project.org; s=default; t=1573511743; bh=cH7T51NQWvI7c0/RGWgF7aPPX9hXeAEdsM/6N98iaE8=; h=From:To:Date:In-Reply-To:References:Cc:Subject:List-Id: List-Unsubscribe:List-Archive:List-Post:List-Help:List-Subscribe: From; b=oPMj5P4G1LfsGiP167LaXCCzflhHZJC2uA5HZ0hXEhpB77tLLyADPDwuC5buanA5C 41U0P0RD20r4gBDGif+L6YyRm8yqzIDaPLSZ2oXRJ679E1tZKzvXvZ2v8e7GQU29/E KHHVciNMr6hHyKIP0V3ajouazOw6aKNuqH8vSpLc= Received: from alsa1.perex.cz (localhost.localdomain [127.0.0.1]) by alsa1.perex.cz (Postfix) with ESMTP id 867A7F80275; Mon, 11 Nov 2019 23:34:00 +0100 (CET) X-Original-To: alsa-devel@alsa-project.org Delivered-To: alsa-devel@alsa-project.org Received: by alsa1.perex.cz (Postfix, from userid 50401) id 06ADCF805FB; Mon, 11 Nov 2019 23:33:58 +0100 (CET) X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on alsa1.perex.cz X-Spam-Level: * X-Spam-Status: No, score=1.0 required=5.0 tests=SPF_HELO_NONE,SPF_NONE, SURBL_BLOCKED autolearn=disabled version=3.4.0 Received: from mga06.intel.com (mga06.intel.com [134.134.136.31]) (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 F14FEF8015C for ; Mon, 11 Nov 2019 23:33:53 +0100 (CET) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa1.perex.cz F14FEF8015C X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga004.jf.intel.com ([10.7.209.38]) by orsmga104.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 11 Nov 2019 14:33:51 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.68,294,1569308400"; d="scan'208";a="354903224" Received: from kathyche-mobl.amr.corp.intel.com (HELO pbossart-mobl3.amr.corp.intel.com) ([10.251.27.186]) by orsmga004.jf.intel.com with ESMTP; 11 Nov 2019 14:33:50 -0800 From: Pierre-Louis Bossart To: alsa-devel@alsa-project.org Date: Mon, 11 Nov 2019 16:33:40 -0600 Message-Id: <20191111223343.19986-2-pierre-louis.bossart@linux.intel.com> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20191111223343.19986-1-pierre-louis.bossart@linux.intel.com> References: <20191111223343.19986-1-pierre-louis.bossart@linux.intel.com> MIME-Version: 1.0 Cc: tiwai@suse.de, broonie@kernel.org, Keyon Jie , Pierre-Louis Bossart Subject: [alsa-devel] [PATCH 1/4] ASoC: SOF: PM: add state machine to comments 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: Keyon Jie Add Audio DSP state machine with comments. Note that the 'D0<-->runtime D0I3' part is not implemented yet. Signed-off-by: Keyon Jie Signed-off-by: Pierre-Louis Bossart --- sound/soc/sof/pm.c | 32 ++++++++++++++++++++++++++++++++ 1 file changed, 32 insertions(+) diff --git a/sound/soc/sof/pm.c b/sound/soc/sof/pm.c index 560a937e0484..3204c92f0e7d 100644 --- a/sound/soc/sof/pm.c +++ b/sound/soc/sof/pm.c @@ -428,6 +428,38 @@ int snd_sof_set_d0_substate(struct snd_sof_dev *sdev, } EXPORT_SYMBOL(snd_sof_set_d0_substate); +/* + * Audio DSP states may transform as below:- + * + * D0I3 compatible stream + * Runtime +---------------------+ opened only, timeout + * suspend | +--------------------+ + * +------------+ D0(active) | | + * | | <---------------+ | + * | +--------> | | | + * | |Runtime +--^--+---------^--+--+ The last | | + * | |resume | | | | opened D0I3 | | + * | | | | | | compatible | | + * | | resume| | | | stream closed | | + * | | from | | D3 | | | | + * | | D3 | |suspend | | d0i3 | | + * | | | | | |suspend | | + * | | | | | | | | + * | | | | | | | | + * +-v---+-----------+--v-------+ | | +------+----v----+ + * | | | +-----------> | + * | D3 (suspended) | | | D0I3 +-----+ + * | | +--------------+ | | + * | | resume from | | | + * +-------------------^--------+ d0i3 suspend +----------------+ | + * | | + * | D3 suspend | + * +------------------------------------------------+ + * + * d0i3_suspend = s0_suspend && D0I3 stream opened, + * D3 suspend = !d0i3_suspend, + */ + int snd_sof_resume(struct device *dev) { struct snd_sof_dev *sdev = dev_get_drvdata(dev);