Received: by 2002:a25:c593:0:0:0:0:0 with SMTP id v141csp4131604ybe; Mon, 16 Sep 2019 07:13:32 -0700 (PDT) X-Google-Smtp-Source: APXvYqwVzoTgnR3RPAy1kzosKRF6xZSkGT6KvhzhrBaeWh9Enwn5tWG8rgwYRJJCi0xS7s8bWHU1 X-Received: by 2002:a05:6402:16d5:: with SMTP id r21mr33401362edx.71.1568643212423; Mon, 16 Sep 2019 07:13:32 -0700 (PDT) ARC-Seal: i=2; a=rsa-sha256; t=1568643212; cv=pass; d=google.com; s=arc-20160816; b=K2bEAxzEhMRqfNmH62GCJhFuMp4kxOsDTX3Lumr2dV9UxiT6tzGhNIXzs0IHLzanxo kvoBubS/pYSHUPJzZQd1rOOF85OPJ+MLQimrtWgqOrcFTb7ern9SJwoNsyDOnUfdlu+7 bQi71MxianB9wtNkzxkTI9EGCIxjSs6BvtRL67qh3pUl8c8QEvgZPhd07RG7LXpHTOL2 WFLyRjfr3qIzXWMpkCLwFSBiletZtiZFdTVjIOBmYRGScUDtRwMoHENdZDFE73mKXN1A PqOjtjuwe+/rpIGei9QnTWr7GseDDiiUG2HjLSceiddz0icFFBG7XXx0YuVxeTcmE7zQ s77A== ARC-Message-Signature: i=2; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:mime-version:content-transfer-encoding :content-language:accept-language:in-reply-to:references:message-id :date:thread-index:thread-topic:subject:cc:to:from:dkim-signature; bh=tPaLUiU5KaIQ2OGfxf4Qa3upo8wq8ZBalvB4QOKJ9AA=; b=Gyd2WMjX+8m7MddSNmHh6P/uMY4n58c1yQF/7xpUAfjNdiVKgDpnoOSr+vHTNy90yw okOTWirlpb+5nh7wOqiWGdV1Z31Tw51YZ+zENdAhkYSUm/kib9wq+jHQFg8GKCP1w86l flA2FMKD2oQbcXMF/ehwbbZ/YXfNKzgQFChR6jQpiEDIjuWNmneS0loA+bRBb5LLki76 xVfEGQLCTSLCn05uhxISprVPareSdeEbl6v5ZqENEZMYhQ5MVFs9Ny2zmXCbyoIgeFnb UC6QM8MCrjkNXJL2vBF9TZ3481J+GElZjMz/ytQxwBGi0rTitrivsQdeVuKeO/rn3L/a GSdA== ARC-Authentication-Results: i=2; mx.google.com; dkim=pass header.i=@nxp.com header.s=selector2 header.b=kRQ0DFuT; arc=pass (i=1 spf=pass spfdomain=nxp.com dkim=pass dkdomain=nxp.com dmarc=pass fromdomain=nxp.com); spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=nxp.com Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id w17si19089478ejf.362.2019.09.16.07.13.08; Mon, 16 Sep 2019 07:13:32 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; dkim=pass header.i=@nxp.com header.s=selector2 header.b=kRQ0DFuT; arc=pass (i=1 spf=pass spfdomain=nxp.com dkim=pass dkdomain=nxp.com dmarc=pass fromdomain=nxp.com); spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=nxp.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728149AbfIPOKW (ORCPT + 99 others); Mon, 16 Sep 2019 10:10:22 -0400 Received: from mail-eopbgr00086.outbound.protection.outlook.com ([40.107.0.86]:5955 "EHLO EUR02-AM5-obe.outbound.protection.outlook.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1726821AbfIPOKW (ORCPT ); Mon, 16 Sep 2019 10:10:22 -0400 ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=k/fcLENGe1JlqiMGMi31KLcV1OMpzuMOazB7m6SV9zxA8cQvPqTmvje6bPssUQbdvb9XCBNjcBcrM298OcBUPe+cjj0OinHQWvFAcOD+lc/BCVfthb0F64YvL7BRKN/1x6K+H68DtyTJbhPOz4h5I4BtbdWQzTO2Xay+qTlTy6xb78YdDHIlpn7YGtFUkmkC23Mdp3d7xYpWz+VpKRPs510IyLi1lKQFST1K5JNhI6u82VLqNH2un78b8QlIOk1/aTO02FAfmYT4whFNyk5rWoEpP4oRBwnxTMuGfXchS3SShE4PsR+hdyE2/+ZbG3xNOs+DXZjVM3zNzmwBFwzgKg== 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-SenderADCheck; bh=tPaLUiU5KaIQ2OGfxf4Qa3upo8wq8ZBalvB4QOKJ9AA=; b=cfEp59TtQ8jw7r2d1AtrSrjuNJi3sCzPEvGJ8QcHLFzkU0Y1iqPSFM0D6Ktx2tglQlILXRjYGdQ5lOEvAJBgopgvOy0Vo2bEBT7Sp2BcWdKRZVeV3oubD8yBFArPI+X0CnLql++5UKmS4rOERD7z0vHr+mZ1LEusKtSvx2Kbfhr+cBVfkSwKCPRg+hT45A9RzHSLrWnkc5WduB+4tWHU3XNS9gf4dhJ5SP2FS3xRHb1r0WKlzHuM2wtncceTdwl2+mx13mHJ69eTfJnMCObS0jSzguu0tOdzZN+MA7XMitiGEchQX8e5aJXwd+WGcCmEe0p2JVZ6rQpMEBRcZSSqTw== 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=tPaLUiU5KaIQ2OGfxf4Qa3upo8wq8ZBalvB4QOKJ9AA=; b=kRQ0DFuTPLUkV7LziUuz3rHtEKhyiWhfOYt+tDbZUX+mtBWcb4LnbCZcxfBJUetY96S4s5ultbc3Y/PvfxjX8mBNJtr7Cr/WqN9Zt+ExX4us/4G1VAjkGATFv6drLcdDMeqGuBR6ICADudVDvDKGooGNoLRBEwLVnoaTx//UU3Y= Received: from VI1PR0402MB3600.eurprd04.prod.outlook.com (52.134.5.23) by VI1PR0402MB3840.eurprd04.prod.outlook.com (52.134.16.148) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.2263.20; Mon, 16 Sep 2019 14:10:18 +0000 Received: from VI1PR0402MB3600.eurprd04.prod.outlook.com ([fe80::f919:a62a:998c:6e9a]) by VI1PR0402MB3600.eurprd04.prod.outlook.com ([fe80::f919:a62a:998c:6e9a%6]) with mapi id 15.20.2263.023; Mon, 16 Sep 2019 14:10:18 +0000 From: Andy Duan To: Philipp Puschmann , Fabio Estevam , Robin Gong CC: linux-kernel , Vinod , Dan Williams , Shawn Guo , Sascha Hauer , dl-linux-imx , Greg Kroah-Hartman , Jiri Slaby , "dmaengine@vger.kernel.org" , "linux-arm-kernel@lists.infradead.org" , "linux-serial@vger.kernel.org" Subject: RE: [EXT] Re: [PATCH 0/4] Fix UART DMA freezes for iMX6 Thread-Topic: [EXT] Re: [PATCH 0/4] Fix UART DMA freezes for iMX6 Thread-Index: AQHVaZcvm/+EXlr62U2kolBBt3UOQqcuWX8AgAADtDA= Date: Mon, 16 Sep 2019 14:10:18 +0000 Message-ID: References: <20190911144943.21554-1-philipp.puschmann@emlix.com> <2613a28d-d363-ee4e-679a-e7442e6fde48@emlix.com> In-Reply-To: <2613a28d-d363-ee4e-679a-e7442e6fde48@emlix.com> Accept-Language: zh-CN, en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: authentication-results: spf=none (sender IP is ) smtp.mailfrom=fugang.duan@nxp.com; x-originating-ip: [119.31.174.68] x-ms-publictraffictype: Email x-ms-office365-filtering-correlation-id: 42c872ee-2147-4e0b-b55a-08d73aaf9aaa x-ms-office365-filtering-ht: Tenant x-microsoft-antispam: BCL:0;PCL:0;RULEID:(2390118)(7020095)(4652040)(8989299)(5600167)(711020)(4605104)(1401327)(4618075)(4534185)(4627221)(201703031133081)(201702281549075)(8990200)(2017052603328)(7193020);SRVR:VI1PR0402MB3840; x-ms-traffictypediagnostic: VI1PR0402MB3840:|VI1PR0402MB3840: x-ms-exchange-transport-forked: True x-microsoft-antispam-prvs: x-ms-oob-tlc-oobclassifiers: OLM:9508; x-forefront-prvs: 0162ACCC24 x-forefront-antispam-report: SFV:NSPM;SFS:(10009020)(4636009)(136003)(346002)(39860400002)(376002)(366004)(396003)(51914003)(199004)(189003)(305945005)(6116002)(256004)(8676002)(4326008)(76176011)(81166006)(8936002)(6246003)(81156014)(55016002)(316002)(6506007)(53546011)(11346002)(99286004)(9686003)(186003)(446003)(54906003)(6436002)(102836004)(33656002)(2906002)(229853002)(476003)(14454004)(26005)(3846002)(7696005)(53936002)(71200400001)(74316002)(66446008)(7736002)(7416002)(110136005)(6636002)(64756008)(86362001)(66556008)(66946007)(486006)(76116006)(478600001)(5660300002)(66066001)(71190400001)(25786009)(66476007)(52536014);DIR:OUT;SFP:1101;SCL:1;SRVR:VI1PR0402MB3840;H:VI1PR0402MB3600.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: Q5t1OnkCRZvxKzr6sJzmHXxDXg/01X0t9oiUkpQCjBuZj1gPAbwGuDfyz70nOT+KudfOeDJ+Gq+sBRMaEp2Mnmy772gbO5D8vGRTVQ0L7O2XLKZhVL0bGkg/3pafurZrDEESslzPR/rTMcM59kND+t4W7YA+r4Lh+YJLivYaHQ0D4HteqbzOtCNooJUFgIclk1PxBMto0SK5vN3GR9ilCXNBAXcFCmmFuTFNHsKyrXoO9Us+gR2Ahv/Gn3XuZk+Z4R741vQdyylcm3Ty3eJkCEJuAKSbD/Gg9zNHcSsONAb6ACRgxnAWvERsjiwd1EBZnh772EZ+fxt5PlNzs6lt8+/RT5GR8sXERR1Nb/LiId7zGqqaDM8oQVErFzdXPrC6GP+SAr756PewvcHS1EKqzI+dVh1V4Ig1bI47xPq4ahg= Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 MIME-Version: 1.0 X-OriginatorOrg: nxp.com X-MS-Exchange-CrossTenant-Network-Message-Id: 42c872ee-2147-4e0b-b55a-08d73aaf9aaa X-MS-Exchange-CrossTenant-originalarrivaltime: 16 Sep 2019 14:10:18.3162 (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: MCXK2AputaCX9BUh4lM+rrOGZso3HOeHN1iEnJWh5QAliEqiNqSI1B4NgdPGXY9e2JftdF8SnAZ9zyECMbU68A== X-MS-Exchange-Transport-CrossTenantHeadersStamped: VI1PR0402MB3840 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org RnJvbTogUGhpbGlwcCBQdXNjaG1hbm4gPHBoaWxpcHAucHVzY2htYW5uQGVtbGl4LmNvbT4gU2Vu dDogTW9uZGF5LCBTZXB0ZW1iZXIgMTYsIDIwMTkgOTo1NSBQTQ0KPiBIaSBGYWJpbywNCj4gDQo+ IEFtIDEyLjA5LjE5IHVtIDIwOjIzIHNjaHJpZWIgRmFiaW8gRXN0ZXZhbToNCj4gPiBIaSBQaGls aXBwLA0KPiA+DQo+ID4gVGhhbmtzIGZvciBzdWJtaXR0aW5nIHRoZXNlIGZpeGVzLg0KPiA+DQo+ ID4gT24gV2VkLCBTZXAgMTEsIDIwMTkgYXQgMTE6NTAgQU0gUGhpbGlwcCBQdXNjaG1hbm4NCj4g PiA8cGhpbGlwcC5wdXNjaG1hbm5AZW1saXguY29tPiB3cm90ZToNCj4gPj4NCj4gPj4gRm9yIHNv bWUgeWVhcnMgYW5kIHNpbmNlIG1hbnkga2VybmVsIHZlcnNpb25zIHRoZXJlIGFyZSByZXBvcnRz IHRoYXQNCj4gPj4gUlggVUFSVCBETUEgY2hhbm5lbCBzdG9wcyB3b3JraW5nIGF0IG9uZSBwb2lu dC4gU28gZmFyIHRoZSB1c3VhbA0KPiA+PiB3b3JrYXJvdW5kIHdhcyB0byBkaXNhYmxlIFJYIERN QS4gVGhpcyBwYXRjaGVzIHRyeSB0byBmaXggdGhlIHVuZGVybHlpbmcNCj4gcHJvYmxlbS4NCj4g Pj4NCj4gPj4gV2hlbiBhIHJ1bm5pbmcgc2RtYSBzY3JpcHQgZG9lcyBub3QgZmluZCBhbnkgdXNh YmxlIGRlc3RpbmF0aW9uDQo+ID4+IGJ1ZmZlciB0byBwdXQgaXRzIGRhdGEgaW50byBpdCBqdXN0 IGxlYWRzIHRvIHN0b3BwaW5nIHRoZSBjaGFubmVsDQo+ID4+IGJlaW5nIHNjaGVkdWxlZCBhZ2Fp bi4gQXMgc29sdXRpb24gd2Ugd2UgbWFudWFsbHkgcmV0cmlnZ2VyIHRoZSBzZG1hDQo+ID4+IHNj cmlwdCBmb3IgdGhpcyBjaGFubmVsIGFuZCBieSB0aGlzIGRpc3NvbHZlIHRoZSBmcmVlemUuDQo+ ID4+DQo+ID4+IFdoaWxlIHRoaXMgc2VlbXMgdG8gd29yayBmaW5lIHNvIGZhciBhIGZ1cnRoZXIg cGF0Y2ggaW4gdGhpcyBzZXJpZXMNCj4gPj4gaW5jcmVhc2VzIHRoZSBudW1iZXIgb2YgUlggRE1B IHBlcmlvZHMgZm9yIFVBUlQgdG8gcmVkdWNlIHVzZSBjYXNlcw0KPiA+PiBydW5uaW5nIGludG8g c3VjaCBhIHNpdHVhdGlvbi4NCj4gPj4NCj4gPj4gVGhpcyBwYXRjaCBzZXJpZXMgd2FzIHRlc3Rl ZCB3aXRoIHRoZSBjdXJyZW50IGtlcm5lbCBhbmQgYmFja3BvcnRlZA0KPiA+PiB0byBrZXJuZWwg NC4xNSB3aXRoIGEgc3BlY2lhbCB1c2UgY2FzZSB1c2luZyBhIFdMMTgzN01PRCB2aWEgVUFSVCBh bmQNCj4gPj4gcHJvdm9raW5nIHRoZSBoYW5naW5nIG9mIFVBUlQgUlggRE1BIHdpdGhpbiBzZWNv bmRzIGFmdGVyIHN0YXJ0aW5nIGEgdGVzdA0KPiBhcHBsaWNhdGlvbi4NCj4gPj4gSXQgcmVzdWx0 ZWQgaW4gd2VsbCBrbm93bg0KPiA+PiAgICJCbHVldG9vdGg6IGhjaTA6IGNvbW1hbmQgMHgwNDA4 IHR4IHRpbWVvdXQiDQo+ID4+IGVycm9ycyBhbmQgY29tcGxldGUgc3RvcCBvZiBVQVJUIGRhdGEg cmVjZXB0aW9uLiBPdXIgQmx1ZXRvb3RoDQo+ID4+IHRyYWZmaWMgY29uc2lzdHMgb2YgbWFueSBp bmRlcGVuZGVudCBzbWFsbCBwYWNrZXRzLCBtb3N0bHkgb25seSBhIGZldw0KPiA+PiBieXRlcywg Y2F1c2luZyBoaWdoIHVzYWdlIG9mIHBlcmlvZHMuDQo+ID4+DQo+ID4+DQo+ID4+IFBoaWxpcHAg UHVzY2htYW5uICg0KToNCj4gPj4gICBkbWFlbmdpbmU6IGlteC1zZG1hOiBmaXggYnVmZmVyIG93 bmVyc2hpcA0KPiA+PiAgIGRtYWVuZ2luZTogaW14LXNkbWE6IGZpeCBkbWEgZnJlZXplcw0KPiA+ PiAgIHNlcmlhbDogaW14OiBhZGFwdCByeCBidWZmZXIgYW5kIGRtYSBwZXJpb2RzDQo+ID4+ICAg ZG1hZW5naW5lOiBpbXgtc2RtYTogZHJvcCByZWR1bmRhbnQgdmFyaWFibGUNCj4gPg0KPiA+IEkg aGF2ZSBzb21lIHN1Z2dlc3Rpb25zOg0KPiA+DQo+ID4gMS4gUGxlYXNlIHNwbGl0IHRoaXMgaW4g dHdvIHNlcmllczogb25lIGZvciBkbWFlbmdpbmUgYW5kIG90aGVyIG9uZQ0KPiA+IGZvciBzZXJp YWwNCj4gPg0KPiA+IDIuIFBsZWFzZSBhZGQgRml4ZXMgdGFnIHdoZW4gYXBwcm9wcmlhdGUsIHNv IHRoYXQgdGhlIGZpeGVzIGNhbiBiZQ0KPiA+IGJhY2twb3J0ZWQgdG8gc3RhYmxlIGtlcm5lbHMu DQo+ID4NCj4gPiAzLiBQbGVhc2UgQ2MgUm9iaW4gYW5kIEFuZHkNCj4gPg0KPiA+IFRoYW5rcw0K PiA+DQo+IA0KPiBUaGFua3MgZm9yIHRoZSBoaW50cy4gSSB3aWxsIGFwcGx5IHRoZW0gaWYgdGhl IGNvbnRlbnR1YWwgZmVlZGJhY2sgaXMgcG9zaXRpdmUuDQo+IA0KPiBwLnMuIERpZCB5b3UgZm9y Z2V0IHRvIGFkZCBBbmR5PyBJIGRvbid0IHNlZSBhIEFuZHkgaW4gdGhlIHRvLSBhbmQgY2MtbGlz dC4NCg0KRm9yIGRtYSBhbmQgdWFydCwgcGxlYXNlIHRvLSBtZSBhbmQgeWliaW4uZ29uZ0BueHAu Y29tLCB0aGFua3MuDQoNCkFuZHkNCg==