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Received: from AM9PR04MB8353.eurprd04.prod.outlook.com (2603:10a6:20b:3ef::22) by PA2PR04MB10514.eurprd04.prod.outlook.com (2603:10a6:102:41e::17) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.9891.15; Thu, 7 May 2026 01:38:13 +0000 Received: from AM9PR04MB8353.eurprd04.prod.outlook.com ([fe80::46ae:f774:f04c:a1bc]) by AM9PR04MB8353.eurprd04.prod.outlook.com ([fe80::46ae:f774:f04c:a1bc%5]) with mapi id 15.20.9870.023; Thu, 7 May 2026 01:38:13 +0000 From: Chancel Liu To: lgirdwood@gmail.com, broonie@kernel.org, perex@perex.cz, tiwai@suse.com, shengjiu.wang@gmail.com, Xiubo.Lee@gmail.com, festevam@gmail.com, nicoleotsuka@gmail.com, Frank.Li@nxp.com, s.hauer@pengutronix.de Cc: kernel@pengutronix.de, shumingf@realtek.com, pierre-louis.bossart@linux.dev, linux-sound@vger.kernel.org, linux-kernel@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, imx@lists.linux.dev, linux-arm-kernel@lists.infradead.org Subject: [PATCH v4 0/3] ASoC: soc-core: Add core support for ignoring suspend on selected DAPM widgets Date: Thu, 7 May 2026 10:36:51 +0900 Message-ID: <20260507013654.2945915-1-chancel.liu@nxp.com> X-Mailer: git-send-email 2.50.1 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-ClientProxiedBy: SEWP216CA0087.KORP216.PROD.OUTLOOK.COM (2603:1096:101:2bf::14) To AM9PR04MB8353.eurprd04.prod.outlook.com (2603:10a6:20b:3ef::22) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: AM9PR04MB8353:EE_|PA2PR04MB10514:EE_ X-MS-Office365-Filtering-Correlation-Id: 3c9c9aad-33e8-443f-676c-08deabd94d7f X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|376014|7416014|1800799024|19092799006|52116014|366016|921020|38350700014|18002099003|56012099003; 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Introduce a generic and reusable mechanism in the ASoC core to mark selected DAPM widgets as ignore_suspend. The unified mechanism consists of two parts: 1. Parse and store the name list of widgets to ignore suspend in struct snd_soc_card The list of widgets can be provided either by the machine driver or parsed from Device Tree. Different machines have different routing and power requirements. Each machine can specify its own widgets to ignore suspend through DT property. It enables flexible policy without hard code. A new helper, snd_soc_of_parse_ignore_suspend_widgets() is added for this purpose. 2. Apply ignore_suspend flags during snd_soc_bind_card() After all components have been probed and all DAPM widgets have been registered, snd_soc_bind_card() performs a unified lookup of the configured widget names across all DAPM contexts of the card and marks the matching widgets with ignore_suspend = 1. Switch to use core ignore-suspend-widgets support for imx-rpmsg driver. Changes in v4: - Rework first patch to improve widget lookup strategy: Add snd_soc_dapm_pin_has_prefix() helper function to detect if pin name contains a component prefix Preserve exact matching for names with prefix to support disambiguation Only apply prefix-stripped matching when pin has no known prefix Changes in v3: - Reword first patch subject to use snd_soc_dapm_widget_name_cmp() - Use goto fail for error handling in imx_rpmsg_probe() to ensure proper cleanup of of_node references The v2 series is a rework of the previous "[PATCH] ASoC: imx-rpmsg: Fix ignore-suspend-widgets only applied to codec DAPM". Changes in v2: - Rework to use a unified core mechanism instead of machine driver specific code Chancel Liu (3): ASoC: dapm: Fix widget lookup with prefixed names across DAPM contexts ASoC: soc-core: Add core support for ignoring suspend on selected DAPM widgets ASoC: fsl: imx-rpmsg: Switch to core ignore-suspend-widgets support include/sound/soc-dapm.h | 2 + include/sound/soc.h | 5 +++ sound/soc/fsl/imx-rpmsg.c | 26 +++++-------- sound/soc/soc-core.c | 43 +++++++++++++++++++++ sound/soc/soc-dapm.c | 79 +++++++++++++++++++++++++++++++++------ 5 files changed, 126 insertions(+), 29 deletions(-) -- 2.50.1