From patchwork Tue Jan 8 13:05:47 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Viorel Suman X-Patchwork-Id: 1021895 Return-Path: X-Original-To: incoming-dt@patchwork.ozlabs.org Delivered-To: patchwork-incoming-dt@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=devicetree-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=pass (p=none dis=none) header.from=nxp.com Authentication-Results: ozlabs.org; dkim=pass (1024-bit key; unprotected) header.d=nxp.com header.i=@nxp.com header.b="ZdDMmgHP"; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 43Ysvr5DhVz9sNM for ; Wed, 9 Jan 2019 00:06:16 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728258AbfAHNF6 (ORCPT ); Tue, 8 Jan 2019 08:05:58 -0500 Received: from mail-eopbgr150044.outbound.protection.outlook.com ([40.107.15.44]:30368 "EHLO EUR01-DB5-obe.outbound.protection.outlook.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1728029AbfAHNF5 (ORCPT ); Tue, 8 Jan 2019 08:05:57 -0500 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=2LY/7GEdtnAVCIIT486UVguCUWycd6qUefZEAhkZfC8=; b=ZdDMmgHPJj1xZjLkfUX2WI641YSYH8PODmMNdNuRChu5PfwgCwsLWp4w2oGab39cPu6p9KObYTk/ZUOVGCcZyBZ3WHrxtpFlj2CTVE0BERBdA3rSAKIYJ6PGXX7mqWopYYDRCH4IXNBjLx42n918+VBtk1KcYkpQeWEkJmya0wM= Received: from VI1PR04MB4704.eurprd04.prod.outlook.com (20.177.48.157) by VI1PR04MB6240.eurprd04.prod.outlook.com (20.179.24.77) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.1495.9; Tue, 8 Jan 2019 13:05:47 +0000 Received: from VI1PR04MB4704.eurprd04.prod.outlook.com ([fe80::ad47:75b9:3ed8:51f0]) by VI1PR04MB4704.eurprd04.prod.outlook.com ([fe80::ad47:75b9:3ed8:51f0%6]) with mapi id 15.20.1495.011; Tue, 8 Jan 2019 13:05:47 +0000 From: Viorel Suman To: Liam Girdwood , Mark Brown , Rob Herring , Mark Rutland , Jaroslav Kysela , Takashi Iwai , Timur Tabi , Nicolin Chen , Xiubo Li , Fabio Estevam , Viorel Suman , "S.j. Wang" , Daniel Baluta , Cosmin Samoila CC: "alsa-devel@alsa-project.org" , "devicetree@vger.kernel.org" , "linux-kernel@vger.kernel.org" , "linuxppc-dev@lists.ozlabs.org" , dl-linux-imx , Viorel Suman Subject: [PATCH v2 2/4] ASoC: add fsl_audmix DT binding documentation Thread-Topic: [PATCH v2 2/4] ASoC: add fsl_audmix DT binding documentation Thread-Index: AQHUp1Lfou9hDnrJVEmiFPuEBZavog== Date: Tue, 8 Jan 2019 13:05:47 +0000 Message-ID: <1546952716-2743-3-git-send-email-viorel.suman@nxp.com> References: <1546952716-2743-1-git-send-email-viorel.suman@nxp.com> In-Reply-To: <1546952716-2743-1-git-send-email-viorel.suman@nxp.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-clientproxiedby: AM6P192CA0107.EURP192.PROD.OUTLOOK.COM (2603:10a6:209:8d::48) To VI1PR04MB4704.eurprd04.prod.outlook.com (2603:10a6:803:52::29) authentication-results: spf=none (sender IP is ) smtp.mailfrom=viorel.suman@nxp.com; x-ms-exchange-messagesentrepresentingtype: 1 x-mailer: git-send-email 2.7.4 x-originating-ip: [95.76.156.53] x-ms-publictraffictype: Email x-microsoft-exchange-diagnostics: 1; VI1PR04MB6240; 6:nF86mRWY0MHNlBt5B4h9cxBKOhJZaKL6o17/mZAEq8blUvUQcpq8iUgeFN/ItdbLox55nBcAX0D96aYwmBU5K/Htqqw6Cbw4GDJ1DJFeaN2xqnGmeKzdwo7bmmopCbpO4tVWTRzJDejxrw8rHQWBYt9hWdRiTBysifD05k0BwV3Ta1XatiTrTSt5zlOKHsLAknT60DJyF2a+rNmAAQXsIkqHTwahriHtEOj00Bnh2csCI+kbexLIUuUV9KFjmMVPtuJu9f8V3n23AVdjqJS5SdVNjjBQZs0dXz2zvWLJoyOCyEcotjkXexkMVEGGftcyswa7pAxxJFt8ehlUIMXV2to/NwKURtGem+im3nUecZld3HF6thXgUY2PhCg1iOMMAdtg/L4kN2zNAgrkTtm/rEMwZhuRfRx+BQkUH9nCirtd+iChUIe5AK0sR1BuKUT2X0d26DtBGz7rY3GkZkr7vQ==; 5:86aj8o84QS1cTiXjZB0KxB3FKkN7gVI0xZUDIfEI02riBuSpq4NXxJZGZUqQ+kaCMQhKNWulximGNweC0z4lUNCdiBxLj+JdCRmAv9x5sTi/s5HyMbOznGRyo48wAsI//fjUQ2Cu8jjmSlFuXemUhi8HQTQC0gKdnxkXHVw7YwOCD9Gwl+ixuW00s6cIckNnC8jY14CgX/csWY2DdO/KvQ==; 7:8fTIBYXQEuufId/BeSP7Vi+4Yk4BTjL/o+fEO0sbgLn9ECtC/oz7wmm+cllNl7lyWFBVKzaR8BLLiisu+GlfkBS0aSkgGdQdN3gack7H+eNHKnhE7QbuICDXqEj9DKtptVn9X7Zsc2+EFuU1iLpEjA== x-ms-office365-filtering-correlation-id: 64ce6f9a-e3b5-41fc-d041-08d6756a0175 x-ms-office365-filtering-ht: Tenant x-microsoft-antispam: BCL:0; PCL:0; RULEID:(2390118)(7020095)(4652040)(8989299)(4534185)(4627221)(201703031133081)(201702281549075)(8990200)(5600109)(711020)(4618075)(2017052603328)(7153060)(7193020); SRVR:VI1PR04MB6240; x-ms-traffictypediagnostic: VI1PR04MB6240: x-microsoft-antispam-prvs: x-exchange-antispam-report-cfa-test: BCL:0; PCL:0; RULEID:(8211001083)(3230021)(908002)(999002)(5005026)(6040522)(8220060)(2401047)(8121501046)(3002001)(3231475)(944501520)(52105112)(93006095)(93001095)(10201501046)(6055026)(6041310)(201703131423095)(201702281528075)(20161123555045)(201703061421075)(201703061406153)(20161123558120)(20161123560045)(20161123562045)(20161123564045)(201708071742011)(7699051)(76991095); SRVR:VI1PR04MB6240; BCL:0; PCL:0; RULEID:; SRVR:VI1PR04MB6240; x-forefront-prvs: 0911D5CE78 x-forefront-antispam-report: SFV:NSPM; SFS:(10009020)(136003)(39860400002)(396003)(346002)(366004)(376002)(199004)(189003)(2906002)(7736002)(106356001)(39060400002)(256004)(14444005)(305945005)(81166006)(4326008)(6486002)(6636002)(25786009)(6436002)(105586002)(8676002)(36756003)(71200400001)(71190400001)(99286004)(486006)(54906003)(110136005)(316002)(81156014)(44832011)(66066001)(5660300001)(478600001)(68736007)(6512007)(2616005)(476003)(50226002)(11346002)(446003)(53936002)(386003)(6506007)(97736004)(52116002)(102836004)(14454004)(86362001)(76176011)(6116002)(8936002)(26005)(7416002)(3846002)(186003)(921003)(1121003); DIR:OUT; SFP:1101; SCL:1; SRVR:VI1PR04MB6240; H:VI1PR04MB4704.eurprd04.prod.outlook.com; FPR:; SPF:None; LANG:en; PTR:InfoNoRecords; A:1; MX:1; received-spf: None (protection.outlook.com: nxp.com does not designate permitted sender hosts) x-ms-exchange-senderadcheck: 1 x-microsoft-antispam-message-info: BueOtRfiqY7dtb7AIW7sMHUOvcp1rzCuIRVziKSAUex3QfIi3/vcU32E8adc6SG5qtGVhZGidoa9MLmVKZzWXc49t73MkpP7X78QP8x0qiRR+LE9zVymc1yz9Wako9JhQs+oPrar0jKc+bK18LO2YG1l1UkYTCvn7nhA7r1NwxwD4tZj+ec8QMOb0p576hM+ZvxhfQT6TlbSheFCgb7AERpBT/iK+uxWtcQBYGqxI7LiXV1GStZbZrU2sFmqvdg80lu2nRDtmUCc/ejcDUzzE9UoOGAhollYyBhiL7lmzcyiOEI0hl3B43NTAEEtbhdz spamdiagnosticoutput: 1:99 spamdiagnosticmetadata: NSPM MIME-Version: 1.0 X-OriginatorOrg: nxp.com X-MS-Exchange-CrossTenant-Network-Message-Id: 64ce6f9a-e3b5-41fc-d041-08d6756a0175 X-MS-Exchange-CrossTenant-originalarrivaltime: 08 Jan 2019 13:05:45.7345 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 686ea1d3-bc2b-4c6f-a92c-d99c5c301635 X-MS-Exchange-Transport-CrossTenantHeadersStamped: VI1PR04MB6240 Sender: devicetree-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org Add the DT binding documentation for NXP Audio Mixer CPU DAI driver. Signed-off-by: Viorel Suman Reviewed-by: Rob Herring --- .../devicetree/bindings/sound/fsl,audmix.txt | 44 ++++++++++++++++++++++ 1 file changed, 44 insertions(+) create mode 100644 Documentation/devicetree/bindings/sound/fsl,audmix.txt diff --git a/Documentation/devicetree/bindings/sound/fsl,audmix.txt b/Documentation/devicetree/bindings/sound/fsl,audmix.txt new file mode 100644 index 0000000..512d39b --- /dev/null +++ b/Documentation/devicetree/bindings/sound/fsl,audmix.txt @@ -0,0 +1,44 @@ +NXP Audio Mixer (AUDMIX). + +The Audio Mixer is a on-chip functional module that allows mixing of two +audio streams into a single audio stream. Audio Mixer has two input serial +audio interfaces. These are driven by two Synchronous Audio interface +modules (SAI). Each input serial interface carries 8 audio channels in its +frame in TDM manner. Mixer mixes audio samples of corresponding channels +from two interfaces into a single sample. Before mixing, audio samples of +two inputs can be attenuated based on configuration. The output of the +Audio Mixer is also a serial audio interface. Like input interfaces it has +the same TDM frame format. This output is used to drive the serial DAC TDM +interface of audio codec and also sent to the external pins along with the +receive path of normal audio SAI module for readback by the CPU. + +The output of Audio Mixer can be selected from any of the three streams + - serial audio input 1 + - serial audio input 2 + - mixed audio + +Mixing operation is independent of audio sample rate but the two audio +input streams must have same audio sample rate with same number of channels +in TDM frame to be eligible for mixing. + +Device driver required properties: +================================= + - compatible : Compatible list, contains "fsl,imx8qm-audmix" + + - reg : Offset and length of the register set for the device. + + - clocks : Must contain an entry for each entry in clock-names. + + - clock-names : Must include the "ipg" for register access. + + - power-domains : Must contain the phandle to AUDMIX power domain node + +Device driver configuration example: +====================================== + audmix: audmix@59840000 { + compatible = "fsl,imx8qm-audmix"; + reg = <0x0 0x59840000 0x0 0x10000>; + clocks = <&clk IMX8QXP_AUD_AUDMIX_IPG>; + clock-names = "ipg"; + power-domains = <&pd_audmix>; + };