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Bottomley" , "Martin K. Petersen" CC: Bean Huo , "devicetree@vger.kernel.org" , "linux-kernel@vger.kernel.org" , "linux-arm-msm@vger.kernel.org" , "linux-scsi@vger.kernel.org" , Linus Walleij Subject: RE: [PATCH v4 0/3] Qualcomm UFS device reset support Thread-Topic: [PATCH v4 0/3] Qualcomm UFS device reset support Thread-Index: AQHVXdVcVndtIrqA7kuEICogWXBJSKcWW9dA Date: Sun, 1 Sep 2019 06:12:15 +0000 Message-ID: References: <20190828191756.24312-1-bjorn.andersson@linaro.org> In-Reply-To: <20190828191756.24312-1-bjorn.andersson@linaro.org> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: authentication-results: spf=none (sender IP is ) smtp.mailfrom=Avri.Altman@wdc.com; x-originating-ip: [212.25.79.133] x-ms-publictraffictype: Email x-ms-office365-filtering-correlation-id: b4f4c177-a8f8-433f-fbbf-08d72ea35615 x-ms-office365-filtering-ht: Tenant x-microsoft-antispam: BCL:0;PCL:0;RULEID:(2390118)(7020095)(4652040)(8989299)(5600166)(711020)(4605104)(1401327)(4618075)(4534185)(4627221)(201703031133081)(201702281549075)(8990200)(2017052603328)(7193020);SRVR:MN2PR04MB7038; x-ms-traffictypediagnostic: MN2PR04MB7038: x-microsoft-antispam-prvs: wdcipoutbound: EOP-TRUE x-ms-oob-tlc-oobclassifiers: OLM:10000; x-forefront-prvs: 0147E151B5 x-forefront-antispam-report: SFV:NSPM;SFS:(10019020)(4636009)(136003)(376002)(39860400002)(346002)(366004)(396003)(199004)(189003)(66066001)(6436002)(55016002)(9686003)(53936002)(7416002)(6506007)(102836004)(4326008)(25786009)(7696005)(76176011)(26005)(186003)(33656002)(71200400001)(71190400001)(6246003)(52536014)(5660300002)(81156014)(81166006)(86362001)(305945005)(7736002)(8936002)(6116002)(3846002)(74316002)(478600001)(4744005)(99286004)(2906002)(14454004)(229853002)(5024004)(8676002)(446003)(256004)(54906003)(110136005)(316002)(64756008)(486006)(476003)(66556008)(66476007)(66946007)(76116006)(11346002)(66446008);DIR:OUT;SFP:1102;SCL:1;SRVR:MN2PR04MB7038;H:MN2PR04MB6991.namprd04.prod.outlook.com;FPR:;SPF:None;LANG:en;PTR:InfoNoRecords;A:1;MX:1; x-ms-exchange-senderadcheck: 1 x-microsoft-antispam-message-info: vSw8AvMuxRtT+8s6+HCUKQRZFY8ao1Hizk4Beo4WkvXbhftWo405KIogPwvOndGQBUnChTN5QjdyN/ZMdaqd66tic98h1fGBfVLDJdis0YuFCQceEC3F62WsadklScs2195/nvjsM09YdYIm29KM08gRZUO5x2z5Y/AO0gOLMbWAejMul+xvYD1cXpMQFu7W6uqKXhIzooHJWunC1CNAzzuQBSa346YqMmbCWWnB2u0t/J3/IWv61OP4Jdd8rWa7SHq/5wKoCRnt3mo8ugzdPjQgiRypVi36c+EO31LQbCrYHJmLW7qQOjTmZ5lhEEImcGzkcuMPp0RDs0/aotpFei9l4CBUUKniCfHGosYr6Nvo+RPOJuSVrFBg7ouxTahe1APH3eenb6dHyh6YVo7K27nYGd3KWfoUQrw/P5vivOk= x-ms-exchange-transport-forked: True Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-OriginatorOrg: wdc.com X-MS-Exchange-CrossTenant-Network-Message-Id: b4f4c177-a8f8-433f-fbbf-08d72ea35615 X-MS-Exchange-CrossTenant-originalarrivaltime: 01 Sep 2019 06:12:15.2951 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: b61c8803-16f3-4c35-9b17-6f65f441df86 X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: 7dZr/LZQH02AkKyOLgNt2NrzREMcqPo38ohwiHgtTKaBD06ko/5pF0ED60W7VccugN9O6OmIw5XZ8LIjSZ8bgA== X-MS-Exchange-Transport-CrossTenantHeadersStamped: MN2PR04MB7038 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi,=20 >=20 > This series adds a new ufs vops to allow platform specific methods for > resetting an attached UFS device, then implements this for the > Qualcomm driver. > This reset seems to be necessary for the majority of Dragonboard845c > devices. >=20 > Bean requested in v3 that a software fallback mechanism, using > UIC_CMD_DME_END_PT_RST. I have not been successful in validating > that this > works for me, so I'm postponing this effort and hoping we can add it > incrementally at a later time. This series looks good to me. Yeah - We can add and test the uic command bail-out once this is accepted. Thanks, Avri