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alsa-project.org; dkim=none (message not signed) header.d=none;alsa-project.org; dmarc=pass action=none header.from=nvidia.com; Received-SPF: Pass (protection.outlook.com: domain of nvidia.com designates 216.228.112.36 as permitted sender) receiver=protection.outlook.com; client-ip=216.228.112.36; helo=mail.nvidia.com; Received: from mail.nvidia.com (216.228.112.36) by DM6NAM11FT008.mail.protection.outlook.com (10.13.172.85) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384) id 15.20.4457.17 via Frontend Transport; Fri, 27 Aug 2021 09:38:08 +0000 Received: from HQMAIL101.nvidia.com (172.20.187.10) by HQMAIL101.nvidia.com (172.20.187.10) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Fri, 27 Aug 2021 09:38:07 +0000 Received: from audio.nvidia.com (172.20.187.5) by mail.nvidia.com (172.20.187.10) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Fri, 27 Aug 2021 09:38:03 +0000 From: Sameer Pujar To: , , , , , , , , , Subject: [PATCH 01/13] ASoC: soc-pcm: Don't reconnect an already active BE Date: Fri, 27 Aug 2021 15:03:47 +0530 Message-ID: <1630056839-6562-2-git-send-email-spujar@nvidia.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1630056839-6562-1-git-send-email-spujar@nvidia.com> References: <1630056839-6562-1-git-send-email-spujar@nvidia.com> MIME-Version: 1.0 X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: 1fe96020-f280-42c2-46c4-08d9693e6110 X-MS-TrafficTypeDiagnostic: DM6PR12MB4635: X-Microsoft-Antispam-PRVS: X-MS-Oob-TLC-OOBClassifiers: OLM:7691; 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CAT:NONE; SFS:(4636009)(136003)(376002)(346002)(396003)(39860400002)(46966006)(36840700001)(70586007)(26005)(107886003)(336012)(2616005)(70206006)(54906003)(4326008)(7416002)(7636003)(356005)(8936002)(82740400003)(8676002)(86362001)(426003)(36860700001)(921005)(36906005)(83380400001)(110136005)(82310400003)(316002)(7696005)(47076005)(478600001)(36756003)(6666004)(186003)(5660300002)(2906002); DIR:OUT; SFP:1101; X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 27 Aug 2021 09:38:08.5851 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 1fe96020-f280-42c2-46c4-08d9693e6110 X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a; Ip=[216.228.112.36]; Helo=[mail.nvidia.com] X-MS-Exchange-CrossTenant-AuthSource: DM6NAM11FT008.eop-nam11.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM6PR12MB4635 Cc: devicetree@vger.kernel.org, alsa-devel@alsa-project.org, Sameer Pujar , linux-kernel@vger.kernel.org, linux-tegra@vger.kernel.org, sharadg@nvidia.com, linux-arm-kernel@lists.infradead.org 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" In some cases, multiple FE components have the same BE component in their respective DPCM paths. One such example would be a mixer component, which can receive two or more inputs and sends a mixed output. In such cases, to avoid reconfiguration of already active DAI (mixer output DAI in this case), check the BE stream state to filter out the redundancy. In summary, allow connection of BE if the respective current stream state is either NEW or CLOSED. Signed-off-by: Sameer Pujar --- sound/soc/soc-pcm.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/sound/soc/soc-pcm.c b/sound/soc/soc-pcm.c index 48f71bb..e30cb5a 100644 --- a/sound/soc/soc-pcm.c +++ b/sound/soc/soc-pcm.c @@ -1395,6 +1395,10 @@ static int dpcm_add_paths(struct snd_soc_pcm_runtime *fe, int stream, if (!fe->dpcm[stream].runtime && !fe->fe_compr) continue; + if ((be->dpcm[stream].state != SND_SOC_DPCM_STATE_NEW) && + (be->dpcm[stream].state != SND_SOC_DPCM_STATE_CLOSE)) + continue; + /* newly connected FE and BE */ err = dpcm_be_connect(fe, be, stream); if (err < 0) {