From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from lists.ozlabs.org (lists.ozlabs.org [112.213.38.117]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 8A047D358D6 for ; Fri, 30 Jan 2026 05:44:58 +0000 (UTC) Received: from boromir.ozlabs.org (localhost [127.0.0.1]) by lists.ozlabs.org (Postfix) with ESMTP id 4f2Q226GpGz3btw; Fri, 30 Jan 2026 16:44:42 +1100 (AEDT) Authentication-Results: lists.ozlabs.org; arc=pass smtp.remote-ip="2a01:111:f403:c20f::7" arc.chain=microsoft.com ARC-Seal: i=2; a=rsa-sha256; d=lists.ozlabs.org; s=201707; t=1769751882; cv=pass; b=HRmXhU+RDuTvf3WDRleZ+sOCV6Rd7KQnSm7lXy3kQvJBjGRq3ZWlYnni83zJux29BTIc/LtXfCvs6tNsyp1oGgSo+EXV3Pb1G7EE9GvOum4n+kkO60dWeJbOl8xKV6WG8V5LqOqb6XL7Sgsy3scNIiQ9JJ+DgDXlhLxeuALHVfur7OqaiDE/E9gNZrSnE3g3uvrNje/pMJNN8xPrvKN+qiadNWdNtuh+uGFPkXKJcA1yY+Mst/6F/u+Qc4NxAXPQSxF4F+uKwF7VO9EkwxXYQ/UrwwLSMJHRC8zJ1fJMacsXvpyS1C7dmSPS2omh9Ey8o0TEQO+jQpU98JM3tYdkPg== ARC-Message-Signature: i=2; a=rsa-sha256; d=lists.ozlabs.org; s=201707; t=1769751882; c=relaxed/relaxed; bh=nYBCgdVnJ9uTFWH49fM4PwhUjwp3X164WXPES8CBV40=; h=From:To:Subject:Date:Message-Id:In-Reply-To:References: Content-Type:MIME-Version; b=ADEMKdrJyW+EFHji8iPh1w5alPw0qmxmby+t+SycpjhIu2wWkMhZEiChppq2Hf0sMF1Uffc73+Eu8R1ko7cgOC5TL7bL3g2xj8se8cWde8hnW3HKK6CxGZXDhCDd5DMbkwth6Yr+Ax9Vbe75T7U4z89mGDdl7ozoZDBzP122zK+KOHb+Zp5rLYcamvFHVlNC7fl2u3r7TRjMfj4cJyVbVe/pGgo8SdVGeipnT/yuyfPh/pq5GqjesUbcywk14goq8mQxa+H4x6vv/QbCcD8Cznn4vopOdzN+O8bqA+uPVuXa/I1Zzw8oRorfOoJ8qN6igncfZhT6pibsh/S0jYzyug== ARC-Authentication-Results: i=2; lists.ozlabs.org; dmarc=pass (p=none dis=none) header.from=nxp.com; dkim=pass (2048-bit key; unprotected) header.d=nxp.com header.i=@nxp.com header.a=rsa-sha256 header.s=selector1 header.b=mPDU2D0u; dkim-atps=neutral; spf=permerror (client-ip=2a01:111:f403:c20f::7; helo=osppr02cu001.outbound.protection.outlook.com; envelope-from=shengjiu.wang@nxp.com; receiver=lists.ozlabs.org) smtp.mailfrom=nxp.com Authentication-Results: lists.ozlabs.org; dmarc=pass (p=none dis=none) header.from=nxp.com Authentication-Results: lists.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=nxp.com header.i=@nxp.com header.a=rsa-sha256 header.s=selector1 header.b=mPDU2D0u; 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:f403:c20f::7; helo=osppr02cu001.outbound.protection.outlook.com; envelope-from=shengjiu.wang@nxp.com; receiver=lists.ozlabs.org) Received: from OSPPR02CU001.outbound.protection.outlook.com (mail-norwayeastazlp170130007.outbound.protection.outlook.com [IPv6:2a01:111:f403:c20f::7]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange secp256r1 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 4f2Q222H6bz3bmM for ; Fri, 30 Jan 2026 16:44:42 +1100 (AEDT) ARC-Seal: i=1; a=rsa-sha256; s=arcselector10001; d=microsoft.com; cv=none; b=IzakqJxZ/sQj8WjVDyzvYZwXNYFP+AaEqJ7PaE1IcK/FRSlwmu2se6ox9xUkgaBPvAPVLw8DuuMayr2IucQ4LaAdWdOCanUo/wPPhmTnmZtVNfkEebEGCzMZ1xK6dcTXvLbkTp+e3kggHYNz69v6yV056WckHznDa0ayjALOfcUMG8eVAAeh1oO1zQH8uy8XCJ9DGOfSy9y2HBq0helTw7ivudj4zpmJXU8lXjzc1uVBWFlz5CzGfIXfbJfvh6A2T1WyVRJ6Au+l1XBkjq5Ma/fSfYMzSXFovBKdvG7Gv/yFsEO9h9XdHpdHyq7D9f7+a3HwNHZr7x/BNcReqJkfHg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector10001; 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=nYBCgdVnJ9uTFWH49fM4PwhUjwp3X164WXPES8CBV40=; b=V07mXHlEoRxQ6oDmKGFeK2fvb50mloNp0TphTVE65fFDtS98VTzhi/9QDIKsheEVQEvBdAfd8wL2t18AYjfkNHJCLCFe67lccOWNLL8AmtYhwueRcPaydZQvJHKqosC7Xf2sdCTDuGaruObCZTdIqexn97OWc+HWmqGmQDu3W9Jhcl7VwegTxZgtfXUQ/3u7czYQdCztmq5+HKbhWRyEtN/hDNfJvM2zLOibMbQKfIbVvn2aWjipnbwC649tjzZSPrbNS/XitjjtohDB6/PjzLSX6SSj1OUjcPMkGbovAHZ7Acg0UIbkZL4ndtgaLuP0MULfoA5DmEBD4FdrmsgRgA== 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=selector1; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=nYBCgdVnJ9uTFWH49fM4PwhUjwp3X164WXPES8CBV40=; b=mPDU2D0u8xliHCYnuS2Xl8+ViYzTV8LAaKdsI/8rD7dLT4xPDFPLBZJczpvr9hFL4Ls8l3Uzk5v7ffnHCvFoXpd+QXva/rFCEo/iMYcCQSANk/WHfEH5PGYrPzF+5YHjvf6lWjPnZ5nry2fWaSwNSNVuzdrFnZHiUbBvndMZpF6Re6aCK4gqGIBpWoPxsLc4e56NSU1epFIuutRvPoDldVsjyyW8alsHjnJkAMtxiRY9NVtLOZzIIz4OhBZNWUfJbDpC3+rGKb7qXeUE1PoI7PPI/SEuQtgbZMOu+7GLsboP4fMNh0cQto1dfjsixGtk5MPCRalV6cRN6BF+jSQwnw== Authentication-Results: dkim=none (message not signed) header.d=none;dmarc=none action=none header.from=nxp.com; Received: from AM0PR04MB7044.eurprd04.prod.outlook.com (2603:10a6:208:191::20) by PAXPR04MB8174.eurprd04.prod.outlook.com (2603:10a6:102:1c4::9) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.9542.16; Fri, 30 Jan 2026 05:44:22 +0000 Received: from AM0PR04MB7044.eurprd04.prod.outlook.com ([fe80::bab2:d15c:fcf8:ef2b]) by AM0PR04MB7044.eurprd04.prod.outlook.com ([fe80::bab2:d15c:fcf8:ef2b%3]) with mapi id 15.20.9564.008; Fri, 30 Jan 2026 05:44:22 +0000 From: Shengjiu Wang To: lgirdwood@gmail.com, broonie@kernel.org, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, shawnguo@kernel.org, s.hauer@pengutronix.de, kernel@pengutronix.de, festevam@gmail.com, linux-sound@vger.kernel.org, devicetree@vger.kernel.org, imx@lists.linux.dev, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, shengjiu.wang@gmail.com, Xiubo.Lee@gmail.com, nicoleotsuka@gmail.com, perex@perex.cz, tiwai@suse.com, linuxppc-dev@lists.ozlabs.org Subject: [PATCH v2 4/4] ASoC: fsl_asrc_dma: allocate memory from dma device Date: Fri, 30 Jan 2026 13:43:30 +0800 Message-Id: <20260130054330.3462544-5-shengjiu.wang@nxp.com> X-Mailer: git-send-email 2.37.1 In-Reply-To: <20260130054330.3462544-1-shengjiu.wang@nxp.com> References: <20260130054330.3462544-1-shengjiu.wang@nxp.com> Content-Transfer-Encoding: 8bit Content-Type: text/plain X-ClientProxiedBy: SI1PR02CA0034.apcprd02.prod.outlook.com (2603:1096:4:1f6::10) To AM0PR04MB7044.eurprd04.prod.outlook.com (2603:10a6:208:191::20) X-Mailing-List: linuxppc-dev@lists.ozlabs.org List-Id: List-Help: List-Owner: List-Post: List-Archive: , List-Subscribe: , , List-Unsubscribe: Precedence: list MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: AM0PR04MB7044:EE_|PAXPR04MB8174:EE_ X-MS-Office365-Filtering-Correlation-Id: e64b8550-6a8d-404e-a79b-08de5fc29ec1 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|376014|7416014|52116014|366016|19092799006|1800799024|38350700014|921020; X-Microsoft-Antispam-Message-Info: =?us-ascii?Q?72X8KEZaTPyrS6E7v/F/XC2qv0TVwzxxodW/Uw7H2Xo7dHu1DIb3KJU+fofY?= =?us-ascii?Q?rQf35Bp3Ti/lfQ98BJYrGAywjRg5r/sox7MyRQQ1U3meX3NLtpB86UAyHsNH?= =?us-ascii?Q?a46v6O6ykxaOF2glmZTLX6GXDCqkTMy3A7UdUBKupJa+hHtadKW1gFPG79lO?= =?us-ascii?Q?VWpd2EsqbTrEWW754kdNSVStO12eBVlJucRKD2UaNJ+74jhrkuU4KvEJdj04?= =?us-ascii?Q?LZFRGYSAagUhKK6/hAHieW+vbusItmZyiOxS+sXGBkCL9SYWTqUVpZ7FS65l?= =?us-ascii?Q?F+1HTj9EGjABqqIXbhUEov2fH9EtSh02OqUzgBPRjtq0fJmM92daZQ8f4atQ?= =?us-ascii?Q?HSXVn35kubfKNAJN0mM+rql3ZoO/1Wix8NmxrM41ExrSw0ceMaFe7uHU71Re?= =?us-ascii?Q?Xg777i+V8FaqjG/FUhrupLcyTkMbTfl4LS7HG3b6wlz+TtIQAzCp7W3797Rs?= =?us-ascii?Q?ZjY4geW6yq64iQG/oFhlfgmwa3t7eY55jqA3icb85iII8iWN83gve3GI47Fg?= =?us-ascii?Q?rsB5IUiovLIavKVwc6k8gzrQR5D/SRa7brLTA12A4AhlCRxGUCi9kDDo7q07?= =?us-ascii?Q?uVVs6IiX4LtcBu+5yuqTZqRjFTbTCexQji6iIaum3tyNU9Op9CjSa3DmL0ci?= =?us-ascii?Q?x0l+dCgzhh9jHDT+CpdnQg3j+mal9vSAgF5oFLvhFmD4M9OLoHSO6o189/22?= =?us-ascii?Q?+hlShxJ9dBnlAsYyK3TtjToGTdKJMfsfGn5MPvkjoiBnc0Jl0tn0mdR/fx5Z?= =?us-ascii?Q?gr9ZPWANHSu6ZNAtVDAV+37DUMg/593Ho+9IUz/lPp6NGjZrOU6+S6d+g3Qq?= =?us-ascii?Q?uDxs1DuNv4GTNbJNHeMREM0ffVuzYJBentzD07yy+7Jas+jF2DeCfAlgCJla?= =?us-ascii?Q?CJyLA5E4WaZERQLYOAsPh/zKAtKoW9D+1YGQsdjBfZUlaQ4igaRI/hVrvspK?= =?us-ascii?Q?vMGHldrsIaYhvtvjkuSFuTRJhp+c4lQ1lB9KKfCJ2A4s19FzNaRn3U4yka3y?= =?us-ascii?Q?cpAarV5WSdQAGV2UeQHuBh2T4aW1L7USTfnCiEBjyjawhiSbI/MPAtqghssr?= =?us-ascii?Q?S2+aCyvIgqJ9H31eLLsEQinttSCXdtPFLXC9gvkDlyk7Y6hx1Yqo0jQr3Pdr?= =?us-ascii?Q?2pLUd/XkvAQlKmP7QRVk7+tK73P2QI72WOCUJvzxoWGeXxpMx/g7OqryYoa6?= =?us-ascii?Q?jnLsUI+JG37CPibr49lTa22PtrotKrwf19eQ8DIMf+7TPQHj9QELy0OQhSXv?= =?us-ascii?Q?H+DFUgoppIx3e51Ps3LZvCRKwW+/u1CWvPksq2N7eQIQpXvT8qsqAkd9xCqC?= =?us-ascii?Q?riHzCbxdq2oAZ3EhDuRBeK2UdsbBtzWucgQ0uYZ/1DZCW/HL0TUfpvLA4/6x?= =?us-ascii?Q?8bBFx32vK1AArc7wXiTchKfxktS1Xz+0wE9aHYFNkixLp1JrT95+4M9yTp67?= =?us-ascii?Q?ZvdkmJALSOFbfWXnnmZczKKKc23sjszSp17h/IB5PbAgIATfajnqPbAP+sUN?= =?us-ascii?Q?FPLgQhW38j29l8uExyGNAC4Y5/hm3zUBJPz3dNmvz81UYqv957++c/Lpx1ie?= =?us-ascii?Q?G03rHz2pDYi7TE8kGIRrvbsuw0MgXUL/JKbA/cNUNt7tTPhki1XZzaZXCC3q?= =?us-ascii?Q?zvcfX8w/ZPDxbXN91wDT41EmVSgifiRil96O8SyWlNmV?= X-Forefront-Antispam-Report: CIP:255.255.255.255;CTRY:;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:AM0PR04MB7044.eurprd04.prod.outlook.com;PTR:;CAT:NONE;SFS:(13230040)(376014)(7416014)(52116014)(366016)(19092799006)(1800799024)(38350700014)(921020);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: =?us-ascii?Q?lvR/0UgqqEo8cSRPk3IYCNGS7ijvCO2kDQnoAQNWo+Zs0ih0aXZU4BsgjEPE?= =?us-ascii?Q?9OuAD5TT+DJvuR/1rYZbZDKU4WS8RM6Cq8CDBYQG/zg1K3BMJCDll7TJFdMH?= =?us-ascii?Q?u/n0K0kwcGBqBeqpSc6rbWwDC/flgfkHNqG1z8t05XOKK9+qIgU9DZBUeo5u?= =?us-ascii?Q?DWu2ydaFlGvdneJrCE/J/0CQgOY2OgM+plCkW4XKfVmi4M0aWQMSvm7Y5CSj?= =?us-ascii?Q?OXHFhm5U+sTC0/pYiz3WvbwrwT3IOBSc9q1JJAwctCUB5iB/IMF0Yqdrbo2s?= =?us-ascii?Q?SlZmPzYwlgRlvyc2uvXG3sROxFuYXyByi8LmTa16oe39fgT7sLblRTJ7dKx8?= =?us-ascii?Q?qSP/pqzYEC6imzbEpUoh3MC8N3i+9CrPiQyeA+8SOgW0ZWvjsyQDrHO++dD4?= =?us-ascii?Q?wH1/C37xJjHIqEp7pA6d+o1XPen02jtIUle7BaEhCxSiKYSWf8gxke0N6nqw?= =?us-ascii?Q?Zo9f/D4gF6ebLGvE5Ub7rZPLia/kXS2c579UHdX2awywbdtXS9ianxl8rCCY?= =?us-ascii?Q?ZEEqYUyKSuz6GxGeJLAo+NdSDuIQmxMYg9MmCJ8OyM7gJt+bXvBdRfanpCnH?= =?us-ascii?Q?Pzy8MCwWUecRIMkkpfTiJUew3rE0bh5y/1bFwviJBovUGaUP7doUTXFcxyEX?= =?us-ascii?Q?ter/LPqbWj4MMA7edbZ81R7BLy16L9CnLmabOSja3/B8Y4goAp8hny+2aERR?= =?us-ascii?Q?ENjRYSnACnhpZr1XU4nuduTJdH5bx4Jamqi7yuqoRUmM/RrbwQQTej/y/gnE?= =?us-ascii?Q?LBfMwq92U/+ojuRRkL7RKNwH8y3zIZ2Ft2zTTtOeGUqF1JePEdd/uWpUUi6x?= =?us-ascii?Q?qMPh+acNz46U2RsOcWQRWKeSdFqSeMZqkB50DNHaMZp+YBoKurP7bi1ycPZw?= =?us-ascii?Q?XQzag7qQlV9OpDkJn2GAHbue+mgtWZYLCvw9yQqVXykCuhgDykYp7SBRd/Uc?= =?us-ascii?Q?nvOBJ8iJRELFFmGgiaBYXMMpS7Xq4ndsgpWq5nrZ6sM4Ev+pXFBxzOdVkNb8?= =?us-ascii?Q?6vkDfXWW1ZCow17PCFx+1vwRvZIkxJqxrQWK0P81Ufy7nc5Wuzo86c+ff3V6?= =?us-ascii?Q?olmPQV9GHYDtwf8Yjjk0phn4TA0o866kEjeQEVHwYZFVEFFovCiK6YqSwQiR?= =?us-ascii?Q?l7C06ldiR6hL/r1B/YeMir4i2/SS2v4vjubUVNHD9bIrQlNawsglkRZxeSrE?= =?us-ascii?Q?zzVesaGnMi9kC7T7d3nZKa4dFXzoKHUlcdHDaJXmZN9BAhA2++Il2VC5V2S0?= =?us-ascii?Q?x2j9DIYknDJjlKBsGe9I7uDdsVtrdUwhI2bdQHDpDpj0n8nnpDuvIL1yxQtK?= =?us-ascii?Q?GDYIk4tI8nvjm9JGjdb5vQcLTRIJtrM6iJTpUxeTZA+FbLFT/+y+1UoNCbst?= =?us-ascii?Q?PXzD0HyKqZgM22u/EK+KzVPuZ1LkWixQpHJYC4kSoyRSQLc915rAqTVYPc4f?= =?us-ascii?Q?Fi+M8Ow7gjA7wT4K16lTocJ6bROQass2e15yswb5p5ZArWf7iHsvJt97nZkG?= =?us-ascii?Q?/DtssgX7leTgS5Pmkt07S82yR4+v5GZuTjfQAsGM33p1V7CggnmmJXEtGIYH?= =?us-ascii?Q?uYSW+MvpWUqSOuZdlpigLrigEjZnTUMdAIjxbACi1cqXlLgMxG6tkwkNu4C6?= =?us-ascii?Q?wGsV2M/8UYRTiC7I24/JfEJVDsKItFUl5slEC3YiXlf0DIFd/aR3P7RwT5xp?= =?us-ascii?Q?h5ikfMAO27iW2ABoQDvSRVWj2HhIyYRYMgtJwOOFUMRFFsts58BfH1i3fa47?= =?us-ascii?Q?m7pDlcuGOQ=3D=3D?= X-OriginatorOrg: nxp.com X-MS-Exchange-CrossTenant-Network-Message-Id: e64b8550-6a8d-404e-a79b-08de5fc29ec1 X-MS-Exchange-CrossTenant-AuthSource: AM0PR04MB7044.eurprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 30 Jan 2026 05:44:22.8043 (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: kcwx/earwrt1lDylmzzONPRbg5tmzPCYFnt1Lj93X0rSlkPkZLU2rm1Y9Ak2aGT/m/Do72+Lpv0Nx/ner0U/kg== X-MS-Exchange-Transport-CrossTenantHeadersStamped: PAXPR04MB8174 The dma-coherent property is used to indicate a device is capable of coherent DMA operations. On i.MX952, one of EDMA devices support such feature, in order to support the EDMA device, the memory needs to be allocated from the DMA device. The code change here is to make this driver compatible for non dma-coherent and dma-coherent dma devices. Signed-off-by: Shengjiu Wang --- sound/soc/fsl/fsl_asrc_dma.c | 48 ++++++++++++++++++++++++++++++------ 1 file changed, 41 insertions(+), 7 deletions(-) diff --git a/sound/soc/fsl/fsl_asrc_dma.c b/sound/soc/fsl/fsl_asrc_dma.c index 7dacc06b2f02..348b0aabfa68 100644 --- a/sound/soc/fsl/fsl_asrc_dma.c +++ b/sound/soc/fsl/fsl_asrc_dma.c @@ -449,18 +449,52 @@ fsl_asrc_dma_pcm_pointer(struct snd_soc_component *component, static int fsl_asrc_dma_pcm_new(struct snd_soc_component *component, struct snd_soc_pcm_runtime *rtd) { - struct snd_card *card = rtd->card->snd_card; + struct device *dev = component->dev; + struct fsl_asrc *asrc = dev_get_drvdata(dev); + struct fsl_asrc_pair *pair; struct snd_pcm *pcm = rtd->pcm; + struct dma_chan *chan; int ret; - ret = dma_coerce_mask_and_coherent(card->dev, DMA_BIT_MASK(32)); - if (ret) { - dev_err(card->dev, "failed to set DMA mask\n"); - return ret; + pair = kzalloc(size_add(sizeof(*pair), asrc->pair_priv_size), GFP_KERNEL); + if (!pair) + return -ENOMEM; + + pair->asrc = asrc; + pair->private = (void *)pair + sizeof(struct fsl_asrc_pair); + + /* Request a pair, which will be released later. + * Request pair function needs channel num as input, for this + * pair, we just request "1" channel temporarily. + */ + ret = asrc->request_pair(1, pair); + if (ret < 0) { + dev_err(dev, "failed to request asrc pair\n"); + goto req_pair_err; + } + + /* Request a dma channel, which will be released later. */ + chan = asrc->get_dma_channel(pair, IN); + if (!chan) { + dev_err(dev, "failed to get dma channel\n"); + ret = -EINVAL; + goto dma_chan_err; } - return snd_pcm_set_fixed_buffer_all(pcm, SNDRV_DMA_TYPE_DEV, - card->dev, FSL_ASRC_DMABUF_SIZE); + ret = snd_pcm_set_fixed_buffer_all(pcm, + SNDRV_DMA_TYPE_DEV, + chan->device->dev, + FSL_ASRC_DMABUF_SIZE); + + dma_release_channel(chan); + +dma_chan_err: + asrc->release_pair(pair); + +req_pair_err: + kfree(pair); + + return ret; } struct snd_soc_component_driver fsl_asrc_component = { -- 2.34.1