From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from lindbergh.monkeyblade.net (lindbergh.monkeyblade.net [23.128.96.19]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id AD23D1374 for ; Mon, 23 Oct 2023 02:07:55 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=nxp.com header.i=@nxp.com header.b="Ug/XwqsS" Received: from EUR03-DBA-obe.outbound.protection.outlook.com (mail-dbaeur03on2058.outbound.protection.outlook.com [40.107.104.58]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 2A785107; Sun, 22 Oct 2023 19:07:54 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=T8YFMNzu1AIA0DkU62PuxSezwbVESHx+4v5ct+2ru+siqEW4iCHEA/i8v1EJstk+BRFwZDA0XOi/9GH8xPJ/R+FLVXZ1CRq/4wrihsRlMCX18QWq7PMLQuceU8Nzt4XqyLgUhb+Z2tUmGErUE4U4zNkanarJLHjUgQVV+t4kxIzXZE6bq46Nvlg0+x50hGZ5yk283C/dV1uq41b6EynCMz7q5ihOXf1SuDqSrcDbatOLkwju/5RaLq1MH0zHPemBP5gyb1vpqBRQtRqqcRIBiNTPM6dctaeuaWvr46/5YGKZFLcvzzYqbDYRybOZT2th1a+CeaSpAxNtirKHQVeDTQ== 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=Z5vqGqGWmbk80w1TAHdGYnQK2KuxxtXCJoX8RGwyi80=; b=XRUjmqIXMufs3GMNO9bnD2sk3bfyy/nXDcCRmxrPzlGLhoxYcarEWIYiEg9BoZxmEFDn/1EIwHiKsb+qDGl3dk7V9pg7OZH89lq5Axw2NnY3TbFasHScCO6dhRf2BR6IlKn4X/i+POI8riixbQZ2kaHwmrER5OTF+y67mdJxXI71ED5Y/+6C1VeCrlF9S80otguvoHcQI124wd8gZxYgVpANOnLmowObwamOm51eND3aLsTtfBltwHrgFSTfwy93dm4rpRDwJ3vWdROkgbjP6XP1EISWnjGKqmcwUdrPz3KDrjVxvlEYnTpAjGUCso1SfX91/t1Ervi8YKI9vnwC8g== 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=Z5vqGqGWmbk80w1TAHdGYnQK2KuxxtXCJoX8RGwyi80=; b=Ug/XwqsSFZ0XALdPJVkbvJpn6iuO0M3tr1d4Obdd42CgrJBVjKNQrni1d3jyfUyyYKIiNCxgw36Frj45zEZk/6aZNWk2CYnRz1a2eNTkx3nBlzXYlbdwv36Jd/XWMo60OCH1kQGOFWTrFnT4MdxE3kHFaB7s43ChXdjCoOdHyYM= Authentication-Results: dkim=none (message not signed) header.d=none;dmarc=none action=none header.from=nxp.com; Received: from AS1PR04MB9504.eurprd04.prod.outlook.com (2603:10a6:20b:4c6::19) by PAWPR04MB9837.eurprd04.prod.outlook.com (2603:10a6:102:385::8) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.6907.22; Mon, 23 Oct 2023 02:07:52 +0000 Received: from AS1PR04MB9504.eurprd04.prod.outlook.com ([fe80::ddf9:e4b4:367d:bc06]) by AS1PR04MB9504.eurprd04.prod.outlook.com ([fe80::ddf9:e4b4:367d:bc06%6]) with mapi id 15.20.6933.011; Mon, 23 Oct 2023 02:07:52 +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 Cc: Chancel Liu Subject: [PATCH v4 2/2] ASoC: imx-rpmsg: Force codec power on in low power audio mode Date: Mon, 23 Oct 2023 10:07:18 +0800 Message-Id: <20231023020718.1276000-2-chancel.liu@nxp.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20231023020718.1276000-1-chancel.liu@nxp.com> References: <20231023020718.1276000-1-chancel.liu@nxp.com> Content-Transfer-Encoding: 8bit Content-Type: text/plain X-ClientProxiedBy: SG2PR02CA0084.apcprd02.prod.outlook.com (2603:1096:4:90::24) To AS1PR04MB9504.eurprd04.prod.outlook.com (2603:10a6:20b:4c6::19) Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: AS1PR04MB9504:EE_|PAWPR04MB9837:EE_ X-MS-Office365-Filtering-Correlation-Id: 2abb7609-bdcc-4778-64ee-08dbd36cdcd9 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:AS1PR04MB9504.eurprd04.prod.outlook.com;PTR:;CAT:NONE;SFS:(13230031)(376002)(346002)(136003)(39860400002)(396003)(366004)(230922051799003)(186009)(64100799003)(1800799009)(451199024)(2616005)(7416002)(41300700001)(2906002)(2013699003)(36756003)(921008)(86362001)(26005)(38100700002)(38350700005)(83380400001)(66946007)(66556008)(8936002)(316002)(4326008)(8676002)(5660300002)(44832011)(478600001)(1076003)(66476007)(6666004)(6512007)(52116002)(6506007)(6486002);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: =?us-ascii?Q?unjxIcZVGEXBkBbsN9rd0st8ARUB7XGhwBMKH5hxMJY0dow0E8tP5pALhT2W?= =?us-ascii?Q?lZbQ76E/23XE9xCWBZVS81qql5DMI/dvtGJgyKsAfW0Km4/lz7b/jS45zGW9?= =?us-ascii?Q?2DKABYLZBY9Y4mDZM7POOBEqO/NeiBg6DxgEDDUQ3YZZEmr+TTYa9v/Th8RY?= =?us-ascii?Q?Ye3pXSR83KvEYuMbyWY8KrP5TniFSPUiTGAPf5TKIBh6fSnbDFK/iglH8fIq?= =?us-ascii?Q?neV2Un6hKNxCKtQ2LHGfGhg1H/1QtKhNSiSfC7IDCsVmmgAK/RUrKL6v1Z36?= =?us-ascii?Q?a1Wu3x+N+VQk1oIvn/TIR62FwCBdiQyYGWS2O4GX9f67Ns4uhFL25jMLBYZZ?= =?us-ascii?Q?FCReFB8b7JlBCuyxGvOMrMhoCyQ24U/5NEWzFWbfhJE+WQOODh2rNvPDvfAw?= =?us-ascii?Q?lzvylNzZgWIZ71fUHvBXuv2Oyx5Dn6vFXls5OoHDvpsR/d2USw9t6M+PGvi7?= =?us-ascii?Q?Tup0e/ET/yKeFc1hYLnzE/awBNehVDbwIleQbv4V3WFaAH8FO9D5Owgz3i4l?= =?us-ascii?Q?ioivYMvg9rsZaKQF0gVi1FTK5HV0MOts924bcojmJe/GOMuNAXSgJT7/HWm+?= =?us-ascii?Q?t0/eTK/bAZpy68M/1rynrVGn2/BJaIJOqhEPKzAYbAqeUbi4mwGklNJKHCyH?= =?us-ascii?Q?PHt94bJVWpx6KnP5lohYh2BPfw7IyrbLTemjq6m7QxcoFRyeHw2DM/wKO5TT?= =?us-ascii?Q?Mau4UhofJgM0o/iglz3yG2PrNlG4dYMBd2zEexpoVRYyNPEmUcnFNGGnQECR?= =?us-ascii?Q?PM/C6X/X9wsoJ1j6f/MIGjcxW0Ne5coSVlRMPaCzald34hCm/v1UE5pM3hvH?= =?us-ascii?Q?2kwwLQaCFr2ENwvcuC+G/jvjmjncMGEyGwY5ZLIeassYuTb8TFoPdZLKDHRH?= =?us-ascii?Q?c/MsTBScXiDA8RoItmeYMomn9466Hx1TYZnX/dM+SFjgiL3pCT60ZM7vjImK?= =?us-ascii?Q?hTPsrYJLGGp28INqx2Qh2vSgEfD9TKCVnbw9mSmmma4y06+9Wz+Jt0LNr7Sk?= =?us-ascii?Q?CQHEWTq3ZahdnfdfMowoQV0uW2z50+ZfHDZqI6uZ8HRB1o2cSlTnOQay0Xgl?= =?us-ascii?Q?vAHSy6wIUoSV/MOR76hYoYRogSQS51ZWe6ocxqacNXvtpqhjNxYS05nuNzCm?= =?us-ascii?Q?3UyGyFRaeQrAFqoreiZHlQpWHtjirgk0s4ymnUvMiSK7a055Ho281G6LjzLl?= =?us-ascii?Q?e6R061w+djmDusgivBI8J9egbTooi3c3UNsWJdqKE67zdCExwNcgKqtWnV8U?= =?us-ascii?Q?Yl8y66QLXUMkV2WU6xT7IL0FUxW/Y0nVsrpzaBoGTJYUyiuoKpL36DzDuHDR?= =?us-ascii?Q?AzJpQgkX1M4H3XNynpZiJg8iFhC+91TF9SOJpwm4en4Hk3ZAk99MYmcdw3mY?= =?us-ascii?Q?sFEiwh8CYgKF7oP50TP+5QLSMVoDMjHy8yzzglJR2ekzjznf9PGmD9lixTcr?= =?us-ascii?Q?zUXFiBLvubAoDscTzPeNf+SzmK9d2+7MlCsxDZMERJcslbb/n8trJ0WSuNlA?= =?us-ascii?Q?Mh7bfo2hFZPeNozMJ6CkcwYTigZcuopnr/qspxi3GUshvfgum6WEJFkTqtOc?= =?us-ascii?Q?3QxXHiH4bRKjVSaVGlquOPL886Aw0+R9KdUYUcGk?= X-OriginatorOrg: nxp.com X-MS-Exchange-CrossTenant-Network-Message-Id: 2abb7609-bdcc-4778-64ee-08dbd36cdcd9 X-MS-Exchange-CrossTenant-AuthSource: AS1PR04MB9504.eurprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 23 Oct 2023 02:07:52.0095 (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: Q/dzk7ioM7mrFW8RL4jefvYkQQhjDWKHBqOzy923EqwPf8jsEJhSjBFg41Uph9Q/Zre2dq+OZEYo0W/dP09pCg== X-MS-Exchange-Transport-CrossTenantHeadersStamped: PAWPR04MB9837 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 "ignore-suspend-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 a9324712e3fa..e5bd63dab10c 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, + "ignore-suspend-widgets"); + for (i = 0; i < num_widgets; i++) { + of_property_read_string_index(data->card.dev->of_node, + "ignore-suspend-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; -- 2.25.1