From patchwork Mon Sep 25 11:09:45 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Chancel Liu X-Patchwork-Id: 1839027 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; dkim=pass (1024-bit key; unprotected) header.d=nxp.com header.i=@nxp.com header.a=rsa-sha256 header.s=selector2 header.b=UtvSzIEP; dkim-atps=neutral Authentication-Results: legolas.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=lists.ozlabs.org (client-ip=2404:9400:2:0:216:3eff:fee1:b9f1; helo=lists.ozlabs.org; envelope-from=linuxppc-dev-bounces+incoming=patchwork.ozlabs.org@lists.ozlabs.org; receiver=patchwork.ozlabs.org) Received: from lists.ozlabs.org (lists.ozlabs.org [IPv6:2404:9400:2:0:216:3eff:fee1:b9f1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (secp384r1) server-digest SHA384) (No client certificate requested) by legolas.ozlabs.org (Postfix) with ESMTPS id 4RvKvZ0GDsz1yng for ; Mon, 25 Sep 2023 21:11:54 +1000 (AEST) Authentication-Results: lists.ozlabs.org; dkim=pass (1024-bit key; unprotected) header.d=nxp.com header.i=@nxp.com header.a=rsa-sha256 header.s=selector2 header.b=UtvSzIEP; dkim-atps=neutral Received: from boromir.ozlabs.org (localhost [IPv6:::1]) by lists.ozlabs.org (Postfix) with ESMTP id 4RvKvY6V90z3dCR for ; Mon, 25 Sep 2023 21:11:53 +1000 (AEST) X-Original-To: linuxppc-dev@lists.ozlabs.org Delivered-To: linuxppc-dev@lists.ozlabs.org Authentication-Results: lists.ozlabs.org; dkim=pass (1024-bit key; unprotected) header.d=nxp.com header.i=@nxp.com header.a=rsa-sha256 header.s=selector2 header.b=UtvSzIEP; dkim-atps=neutral Authentication-Results: lists.ozlabs.org; spf=permerror (SPF Permanent Error: Void lookup limit of 2 exceeded) smtp.mailfrom=nxp.com (client-ip=2a01:111:f400:7e1b::60b; helo=eur05-am6-obe.outbound.protection.outlook.com; envelope-from=chancel.liu@nxp.com; receiver=lists.ozlabs.org) Received: from EUR05-AM6-obe.outbound.protection.outlook.com (mail-am6eur05on2060b.outbound.protection.outlook.com [IPv6:2a01:111:f400:7e1b::60b]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 4RvKtB4KGcz3c4M for ; Mon, 25 Sep 2023 21:10:41 +1000 (AEST) ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=RWj5VRNYi1Ubn1EoSnv5McFkN8azhtdoJ3clI7eLE1NOHf/URaayddenNTkF5vWWFaPaJd1er0rrYVtWV0+lt2kRCnm2ZKmSkNluG2AOHrN1YUQYNLNnt+sjomZKjgHjjfEmBRRRGOM6Jij8l4RVEC48YoinEjdIjdPjplkq9/elrGyofr+dw0EG+WHaUogiepS+j6M6eKNtwaWlaXL077duzaAX2FN9quB49dZ33bPKvxwd//Tx342zT/DTfs2Cf7c0dfp521INQPvmB6X8iLlmqDS6qW6Vd1jgXEBiBzy7yQ/Tg4NAMwS9eD70S9DOMUGGDHRkrlGQroVWL+J/7g== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector9901; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-AntiSpam-MessageData-ChunkCount:X-MS-Exchange-AntiSpam-MessageData-0:X-MS-Exchange-AntiSpam-MessageData-1; bh=PI4uIdIkV9AyG0puYfKz4ztIaAoslrT9fpFWHeY2n3M=; b=Ao+vol1bSAmLTreHQgAmRCNJyrVNykwL0n7fyTgTUxAFREKV7jhO/QCua4MUlqKzI16x4XEEPyFUiRKUM0htQ8m4zNLWLrAdL7qGaizmC1EXf/bFJqE5JC+IhoiirS5NoNm9GPWsAhFAvrvdXEh1hdm9xjSLkqHF/niug7aw+EEyQWPZB3jy7pLNiKFY9IZCZFRz1zdxKsBdi+UJvhqf7bKGDYjyUAFajXdHJ1eOZRdiBT6cZRewmjerDNUKJ38GnP+mOMzsjfIXAlreNHqYRtggxwkHcAjlrlfoB8ibAkNIWfhye5xhpYE8um3Olp2oLEgB7yKe7U/PIbDT5UbtrQ== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=nxp.com; dmarc=pass action=none header.from=nxp.com; dkim=pass header.d=nxp.com; arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=nxp.com; s=selector2; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=PI4uIdIkV9AyG0puYfKz4ztIaAoslrT9fpFWHeY2n3M=; b=UtvSzIEPcPKJiHH8UBLoGELYNzywXhgBBaGT80DTUn0lwtPuZND6OZRyvSN3MIcGB6BqBOQW6eLpBhtzDGLn4YpiYt0KYuSlrVp/EW/F5x0PYjk3gfNu72SyKwaD3SEa6SBSiWIf38pjKjQjyTy8BCYNdgGyJ69pa8HpI17GzGQ= Authentication-Results: dkim=none (message not signed) header.d=none;dmarc=none action=none header.from=nxp.com; Received: from DB9PR04MB9498.eurprd04.prod.outlook.com (2603:10a6:10:360::21) by DBBPR04MB7884.eurprd04.prod.outlook.com (2603:10a6:10:1f2::11) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.6813.28; Mon, 25 Sep 2023 11:10:17 +0000 Received: from DB9PR04MB9498.eurprd04.prod.outlook.com ([fe80::51f9:b8d2:7ddd:c74f]) by DB9PR04MB9498.eurprd04.prod.outlook.com ([fe80::51f9:b8d2:7ddd:c74f%6]) with mapi id 15.20.6813.027; Mon, 25 Sep 2023 11:10:16 +0000 From: Chancel Liu To: lgirdwood@gmail.com, broonie@kernel.org, robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org, conor+dt@kernel.org, shengjiu.wang@gmail.com, Xiubo.Lee@gmail.com, festevam@gmail.com, nicoleotsuka@gmail.com, perex@perex.cz, tiwai@suse.com, shawnguo@kernel.org, s.hauer@pengutronix.de, kernel@pengutronix.de, alsa-devel@alsa-project.org, linux-kernel@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org Subject: [PATCH v2 1/2] ASoC: dt-bindings: fsl_rpmsg: List DAPM endpoints ignoring system suspend Date: Mon, 25 Sep 2023 19:09:45 +0800 Message-Id: <20230925110946.3156100-1-chancel.liu@nxp.com> X-Mailer: git-send-email 2.25.1 X-ClientProxiedBy: SI1PR02CA0023.apcprd02.prod.outlook.com (2603:1096:4:1f4::19) To DB9PR04MB9498.eurprd04.prod.outlook.com (2603:10a6:10:360::21) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: DB9PR04MB9498:EE_|DBBPR04MB7884:EE_ X-MS-Office365-Filtering-Correlation-Id: e90646e2-6d6a-470a-f9b9-08dbbdb7ff47 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:255.255.255.255;CTRY:;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:DB9PR04MB9498.eurprd04.prod.outlook.com;PTR:;CAT:NONE;SFS:(13230031)(136003)(346002)(39860400002)(376002)(366004)(396003)(230922051799003)(1800799009)(186009)(451199024)(6506007)(52116002)(6512007)(6666004)(1076003)(2616005)(66476007)(86362001)(66946007)(66556008)(6486002)(478600001)(38100700002)(38350700002)(921005)(83380400001)(2906002)(7416002)(8936002)(8676002)(4326008)(36756003)(15650500001)(316002)(5660300002)(41300700001)(44832011)(26005);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: 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 X-OriginatorOrg: nxp.com X-MS-Exchange-CrossTenant-Network-Message-Id: e90646e2-6d6a-470a-f9b9-08dbbdb7ff47 X-MS-Exchange-CrossTenant-AuthSource: DB9PR04MB9498.eurprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 25 Sep 2023 11:10:16.5136 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 686ea1d3-bc2b-4c6f-a92c-d99c5c301635 X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: hGflbsOZg+xOQecSoXbMQK2jsJy0xvAVUiaMpkiI9D7Dp+amvyh2FThd0/zN34FB6A6ux0Ghyh0PpbXhid5yPA== X-MS-Exchange-Transport-CrossTenantHeadersStamped: DBBPR04MB7884 X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Chancel Liu Errors-To: linuxppc-dev-bounces+incoming=patchwork.ozlabs.org@lists.ozlabs.org Sender: "Linuxppc-dev" Add a property to list DAPM endpoints which mark paths between these endpoints should not be disabled when system enters in suspend state. LPA means low power audio case. On asymmetric multiprocessor, there are Cortex-A core and Cortex-M core, Linux is running on Cortex-A core, RTOS or other OS is running on Cortex-M core. The audio hardware devices can be controlled by Cortex-M. LPA can be explained as a mechanism that Cortex-A allocates a large buffer and fill audio data, then Cortex-A can enter into suspend for the purpose of power saving. Cortex-M continues to play the sound during suspend phase of Cortex-A. When the data in buffer is consumed, Cortex-M will trigger the Cortex-A to wakeup to fill data. LPA requires some audio paths still enabled when Cortex-A enters into suspend. Signed-off-by: Chancel Liu --- .../devicetree/bindings/sound/fsl,rpmsg.yaml | 15 +++++++++++++++ 1 file changed, 15 insertions(+) diff --git a/Documentation/devicetree/bindings/sound/fsl,rpmsg.yaml b/Documentation/devicetree/bindings/sound/fsl,rpmsg.yaml index 188f38baddec..d8fd17615bf2 100644 --- a/Documentation/devicetree/bindings/sound/fsl,rpmsg.yaml +++ b/Documentation/devicetree/bindings/sound/fsl,rpmsg.yaml @@ -91,6 +91,21 @@ properties: - rpmsg-audio-channel - rpmsg-micfil-channel + fsl,lpa-widgets: + $ref: /schemas/types.yaml#/definitions/non-unique-string-array + description: | + A list of DAPM endpoints which mark paths between these endpoints should + not be disabled when system enters in suspend state. LPA means low power + audio case. On asymmetric multiprocessor, there are Cortex-A core and + Cortex-M core, Linux is running on Cortex-A core, RTOS or other OS is + running on Cortex-M core. The audio hardware devices can be controlled by + Cortex-M. LPA can be explained as a mechanism that Cortex-A allocates a + large buffer and fill audio data, then Cortex-A can enter into suspend + for the purpose of power saving. Cortex-M continues to play the sound + during suspend phase of Cortex-A. When the data in buffer is consumed, + Cortex-M will trigger the Cortex-A to wakeup to fill data. LPA requires + some audio paths still enabled when Cortex-A enters into suspend. + required: - compatible From patchwork Mon Sep 25 11:09:46 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Chancel Liu X-Patchwork-Id: 1839024 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; dkim=pass (1024-bit key; unprotected) header.d=nxp.com header.i=@nxp.com header.a=rsa-sha256 header.s=selector2 header.b=jZV0UlnS; dkim-atps=neutral Authentication-Results: legolas.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=lists.ozlabs.org (client-ip=2404:9400:2:0:216:3eff:fee1:b9f1; helo=lists.ozlabs.org; envelope-from=linuxppc-dev-bounces+incoming=patchwork.ozlabs.org@lists.ozlabs.org; receiver=patchwork.ozlabs.org) Received: from lists.ozlabs.org (lists.ozlabs.org [IPv6:2404:9400:2:0:216:3eff:fee1:b9f1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (secp384r1)) (No client certificate requested) by legolas.ozlabs.org (Postfix) with ESMTPS id 4RvKtd1MD5z1yng for ; Mon, 25 Sep 2023 21:11:04 +1000 (AEST) Authentication-Results: lists.ozlabs.org; dkim=pass (1024-bit key; unprotected) header.d=nxp.com header.i=@nxp.com header.a=rsa-sha256 header.s=selector2 header.b=jZV0UlnS; dkim-atps=neutral Received: from boromir.ozlabs.org (localhost [IPv6:::1]) by lists.ozlabs.org (Postfix) with ESMTP id 4RvKtb378Qz3cGM for ; Mon, 25 Sep 2023 21:11:03 +1000 (AEST) X-Original-To: linuxppc-dev@lists.ozlabs.org Delivered-To: linuxppc-dev@lists.ozlabs.org Authentication-Results: lists.ozlabs.org; dkim=pass (1024-bit key; unprotected) header.d=nxp.com header.i=@nxp.com header.a=rsa-sha256 header.s=selector2 header.b=jZV0UlnS; dkim-atps=neutral Authentication-Results: lists.ozlabs.org; spf=permerror (SPF Permanent Error: Void lookup limit of 2 exceeded) smtp.mailfrom=nxp.com (client-ip=2a01:111:f400:7e1b::61d; helo=eur05-am6-obe.outbound.protection.outlook.com; envelope-from=chancel.liu@nxp.com; receiver=lists.ozlabs.org) Received: from EUR05-AM6-obe.outbound.protection.outlook.com (mail-am6eur05on2061d.outbound.protection.outlook.com [IPv6:2a01:111:f400:7e1b::61d]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 4RvKtB3xmmz2ydR for ; Mon, 25 Sep 2023 21:10:42 +1000 (AEST) ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=CXRGMfvCmoOPbtQ2Vj3fnKFyEON+jqNmhZJ3yZkaVVKtQY0ZVvHKcdfM+15IZb9wTtyKa8Ce3QpeEO6y5i2zf2ejRjastdX7WP+HK/M4ZATeOwGywVURn/H6TpgpmwZx4S0KDrbMFYFxPhVtPUEVMZ5YDZ/g0xR+X2cVK6RsbZyVYhcskAZIr6GHhs/tVSfbZLWI63uZRDQBKbGB/G/gnLCs9olAPRSNJNDob3k8eXxGOXW8DTLs1jAZDZokwhpFBAWunMIJ/2xPE4EduCGmuI/yZuzAkSQ9Ec3EujqqrPVB1XBNaXdgHirFBznu1Rl9UOWgoDRxRhccYGz0sGfIyQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector9901; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-AntiSpam-MessageData-ChunkCount:X-MS-Exchange-AntiSpam-MessageData-0:X-MS-Exchange-AntiSpam-MessageData-1; bh=L815y72ZKLd8Q6n13OC96EtIhZ75mN/FqznbXbkA6rg=; b=oNaJSbE0q5ybNxlPxQiVF/iXv81DulYGLdgLS5Zhq8oZG0Ya7gjx7ZtZfsC0pGxl/g+ZHlAz/awLBTx1NFik+JqwNshKorkiXdNPJXkEijnm4W2qunUd0v+gCmwzYJm7bBx5ngWolx1oNhRzNG5Ppwcl2jeWYZhzxlQ1GuD4GkDLJrA9KElF4xaCY3PcMGLA0Qc04x0Xnmi/Dic3JT0lUS01cpP/KlpwhqvALOm4al0K2jR2JbuzXvAEnuWVYW6IPgT9HbE+Gl4KBeaAwg48aMtpW8VO+D2t3zgGL2bObnzhrrZUDFjkusEbrZaWOKXAQxFu4x/67oabhey7EKIYjw== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=nxp.com; dmarc=pass action=none header.from=nxp.com; dkim=pass header.d=nxp.com; arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=nxp.com; s=selector2; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=L815y72ZKLd8Q6n13OC96EtIhZ75mN/FqznbXbkA6rg=; b=jZV0UlnSCrBs+12lQi+6ixtLNPrVELeKIEwXYNE5/U0Yss6BGDpCk/wEl74rNsesq1btudEA6JN1ic2BjsM1zvXHJ6K20SazvxnziB9hCDSdJhXiket+Df+fxtZ1XmUr4sHSOGNPA2qwAZEv8Yicu5zv4ykexG94s3a6w4A2Mr8= Authentication-Results: dkim=none (message not signed) header.d=none;dmarc=none action=none header.from=nxp.com; Received: from DB9PR04MB9498.eurprd04.prod.outlook.com (2603:10a6:10:360::21) by DB9PR04MB9283.eurprd04.prod.outlook.com (2603:10a6:10:36d::11) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.6813.27; Mon, 25 Sep 2023 11:10:22 +0000 Received: from DB9PR04MB9498.eurprd04.prod.outlook.com ([fe80::51f9:b8d2:7ddd:c74f]) by DB9PR04MB9498.eurprd04.prod.outlook.com ([fe80::51f9:b8d2:7ddd:c74f%6]) with mapi id 15.20.6813.027; Mon, 25 Sep 2023 11:10:22 +0000 From: Chancel Liu To: lgirdwood@gmail.com, broonie@kernel.org, robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org, conor+dt@kernel.org, shengjiu.wang@gmail.com, Xiubo.Lee@gmail.com, festevam@gmail.com, nicoleotsuka@gmail.com, perex@perex.cz, tiwai@suse.com, shawnguo@kernel.org, s.hauer@pengutronix.de, kernel@pengutronix.de, alsa-devel@alsa-project.org, linux-kernel@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org Subject: [PATCH v2 2/2] ASoC: imx-rpmsg: Force codec power on in low power audio mode Date: Mon, 25 Sep 2023 19:09:46 +0800 Message-Id: <20230925110946.3156100-2-chancel.liu@nxp.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230925110946.3156100-1-chancel.liu@nxp.com> References: <20230925110946.3156100-1-chancel.liu@nxp.com> X-ClientProxiedBy: SI1PR02CA0023.apcprd02.prod.outlook.com (2603:1096:4:1f4::19) To DB9PR04MB9498.eurprd04.prod.outlook.com (2603:10a6:10:360::21) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: DB9PR04MB9498:EE_|DB9PR04MB9283:EE_ X-MS-Office365-Filtering-Correlation-Id: d1c4c6e5-a02f-40dd-59c3-08dbbdb802bc X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:255.255.255.255;CTRY:;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:DB9PR04MB9498.eurprd04.prod.outlook.com;PTR:;CAT:NONE;SFS:(13230031)(376002)(136003)(366004)(346002)(396003)(39860400002)(230922051799003)(186009)(1800799009)(451199024)(6512007)(6486002)(52116002)(6506007)(6666004)(83380400001)(921005)(86362001)(38350700002)(38100700002)(36756003)(1076003)(2616005)(26005)(2906002)(2013699003)(41300700001)(316002)(7416002)(44832011)(66946007)(66476007)(478600001)(4326008)(8936002)(8676002)(5660300002)(66556008);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: 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 X-OriginatorOrg: nxp.com X-MS-Exchange-CrossTenant-Network-Message-Id: d1c4c6e5-a02f-40dd-59c3-08dbbdb802bc X-MS-Exchange-CrossTenant-AuthSource: DB9PR04MB9498.eurprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 25 Sep 2023 11:10:22.2169 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 686ea1d3-bc2b-4c6f-a92c-d99c5c301635 X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: NbH4X1vt7OH69ZX4SNy4siQhMq68mcYAIkFUz/asOqxkSW3Pnn0ohq/wVBIe738aCiq9XMqwIH+xlFvFC7D1YA== X-MS-Exchange-Transport-CrossTenantHeadersStamped: DB9PR04MB9283 X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Chancel Liu Errors-To: linuxppc-dev-bounces+incoming=patchwork.ozlabs.org@lists.ozlabs.org Sender: "Linuxppc-dev" Low power audio mode requires binding codec still power on while Acore enters into suspend so Mcore can continue playback music. ASoC machine driver acquires DAPM endpoints through reading "fsl,lpa-widgets" property from DT and then forces the path between these endpoints ignoring suspend. If the rpmsg sound card is in low power audio mode, the suspend/resume callback of binding codec is overridden to disable the suspend/resume. Signed-off-by: Chancel Liu --- sound/soc/fsl/imx-rpmsg.c | 58 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 58 insertions(+) diff --git a/sound/soc/fsl/imx-rpmsg.c b/sound/soc/fsl/imx-rpmsg.c index b578f9a32d7f..0568a3420aae 100644 --- a/sound/soc/fsl/imx-rpmsg.c +++ b/sound/soc/fsl/imx-rpmsg.c @@ -20,8 +20,11 @@ struct imx_rpmsg { struct snd_soc_dai_link dai; struct snd_soc_card card; unsigned long sysclk; + bool lpa; }; +static struct dev_pm_ops lpa_pm; + static const struct snd_soc_dapm_widget imx_rpmsg_dapm_widgets[] = { SND_SOC_DAPM_HP("Headphone Jack", NULL), SND_SOC_DAPM_SPK("Ext Spk", NULL), @@ -38,6 +41,58 @@ static int imx_rpmsg_late_probe(struct snd_soc_card *card) struct device *dev = card->dev; int ret; + if (data->lpa) { + struct snd_soc_component *codec_comp; + struct device_node *codec_np; + struct device_driver *codec_drv; + struct device *codec_dev = NULL; + + codec_np = data->dai.codecs->of_node; + if (codec_np) { + struct platform_device *codec_pdev; + struct i2c_client *codec_i2c; + + codec_i2c = of_find_i2c_device_by_node(codec_np); + if (codec_i2c) + codec_dev = &codec_i2c->dev; + if (!codec_dev) { + codec_pdev = of_find_device_by_node(codec_np); + if (codec_pdev) + codec_dev = &codec_pdev->dev; + } + } + if (codec_dev) { + codec_comp = snd_soc_lookup_component_nolocked(codec_dev, NULL); + if (codec_comp) { + int i, num_widgets; + const char *widgets; + struct snd_soc_dapm_context *dapm; + + num_widgets = of_property_count_strings(data->card.dev->of_node, + "fsl,lpa-widgets"); + for (i = 0; i < num_widgets; i++) { + of_property_read_string_index(data->card.dev->of_node, + "fsl,lpa-widgets", + i, &widgets); + dapm = snd_soc_component_get_dapm(codec_comp); + snd_soc_dapm_ignore_suspend(dapm, widgets); + } + } + codec_drv = codec_dev->driver; + if (codec_drv->pm) { + memcpy(&lpa_pm, codec_drv->pm, sizeof(lpa_pm)); + lpa_pm.suspend = NULL; + lpa_pm.resume = NULL; + lpa_pm.freeze = NULL; + lpa_pm.thaw = NULL; + lpa_pm.poweroff = NULL; + lpa_pm.restore = NULL; + codec_drv->pm = &lpa_pm; + } + put_device(codec_dev); + } + } + if (!data->sysclk) return 0; @@ -137,6 +192,9 @@ static int imx_rpmsg_probe(struct platform_device *pdev) goto fail; } + if (of_property_read_bool(np, "fsl,enable-lpa")) + data->lpa = true; + data->card.dev = &pdev->dev; data->card.owner = THIS_MODULE; data->card.dapm_widgets = imx_rpmsg_dapm_widgets;