Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751656AbdFII0m (ORCPT ); Fri, 9 Jun 2017 04:26:42 -0400 Received: from mail-eopbgr30060.outbound.protection.outlook.com ([40.107.3.60]:23136 "EHLO EUR03-AM5-obe.outbound.protection.outlook.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1751623AbdFII0h (ORCPT ); Fri, 9 Jun 2017 04:26:37 -0400 From: Peter Chen To: Fabien Lahoudere , Peter Chen CC: Stephen Boyd , Peter Senna Tschudin , Felipe Balbi , "Greg Kroah-Hartman" , "open list:USB PHY LAYER" , open list Subject: RE: [RFC] usb-phy-generic: Add support to SMSC USB3315 Thread-Topic: [RFC] usb-phy-generic: Add support to SMSC USB3315 Thread-Index: AQHSuNRDH8+y6gQCUECg1rlmIS7UOKHN9L4AgDR7BwCAAC3BAIACdliAgAF3hgCAC9ooAIAD3C4AgAAM/gCAAAJ/AIABDREAgAEG1ACAAIgUAIACRjaAgAFNw7A= Date: Fri, 9 Jun 2017 08:26:28 +0000 Message-ID: References: <1495563396.12055.93.camel@collabora.co.uk> <20170523210022.GN20170@codeaurora.org> <1495708587.12055.97.camel@collabora.co.uk> <1495789230.12055.104.camel@collabora.co.uk> <20170602220010.GQ20170@codeaurora.org> <1496653020.31741.2.camel@collabora.co.uk> <20170605094330.GA21071@b29397-desktop> <1496656346.31741.4.camel@collabora.co.uk> <20170606015528.GB26189@b29397-desktop> <1496770570.22734.3.camel@collabora.co.uk> <20170607014312.GA10588@b29397-desktop> <1496924821.22734.15.camel@collabora.co.uk> In-Reply-To: <1496924821.22734.15.camel@collabora.co.uk> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: authentication-results: collabora.co.uk; dkim=none (message not signed) header.d=none;collabora.co.uk; dmarc=none action=none header.from=nxp.com; x-originating-ip: [199.59.225.131] x-ms-publictraffictype: Email x-microsoft-exchange-diagnostics: 1;HE1PR04MB1449;7:AMYmTLDtrwSL034hDW4fKUaEhWmN+Ns2XRsRjaHSpAZWZr5F2elLs1sbAX91Cf+XDsMzEixvr03tB09bKsxA2oPhLy36Kg6guLuD07FpzD6QYBqrkHkNm0kfIagxB+jd+5j2hqUVi6raFdptSXa/S0XdxMglInw6E/ABtZ22JE7UHZjAzh1atfZukbZJgxK2PF1PMfmX7pNDmrT7dWWCQ6SxgCWDLO/1dAVf8paGJY37Pccg9HXvETbZ4fcNJTlFaIud6VUbq9q9cfTqRzNYXoozsXa91gycq/dXCcJVoEvf5ZC0UGta0pTKK06PLRxxLYcZiOrZEdxxrQ5S+Qce/Q== x-ms-traffictypediagnostic: HE1PR04MB1449: x-ms-office365-filtering-correlation-id: ebd9c1ee-2744-4171-f7b7-08d4af113a2a x-ms-office365-filtering-ht: Tenant x-microsoft-antispam: UriScan:;BCL:0;PCL:0;RULEID:(22001)(2017030254075)(48565401081)(201703131423075)(201703031133081);SRVR:HE1PR04MB1449; x-microsoft-antispam-prvs: x-exchange-antispam-report-test: UriScan:; x-exchange-antispam-report-cfa-test: BCL:0;PCL:0;RULEID:(100000700101)(100105000095)(100000701101)(100105300095)(100000702101)(100105100095)(6040450)(601004)(2401047)(5005006)(8121501046)(93006095)(93001095)(100000703101)(100105400095)(10201501046)(3002001)(6055026)(6041248)(201703131423075)(201702281528075)(201703061421075)(201703061406153)(20161123555025)(20161123558100)(20161123560025)(20161123562025)(20161123564025)(6072148)(100000704101)(100105200095)(100000705101)(100105500095);SRVR:HE1PR04MB1449;BCL:0;PCL:0;RULEID:(100000800101)(100110000095)(100000801101)(100110300095)(100000802101)(100110100095)(100000803101)(100110400095)(100000804101)(100110200095)(100000805101)(100110500095);SRVR:HE1PR04MB1449; x-forefront-prvs: 03333C607F x-forefront-antispam-report: SFV:NSPM;SFS:(10009020)(6009001)(39850400002)(39860400002)(39400400002)(39840400002)(39450400003)(39410400002)(54094003)(2950100002)(14454004)(189998001)(74316002)(2900100001)(5250100002)(229853002)(66066001)(230783001)(305945005)(93886004)(4326008)(7696004)(86362001)(25786009)(7736002)(38730400002)(33656002)(6246003)(3660700001)(53936002)(50986999)(76176999)(3846002)(102836003)(54356999)(6116002)(6306002)(5660300001)(99286003)(9686003)(39060400002)(54906002)(6506006)(81166006)(2906002)(55016002)(8936002)(3280700002)(478600001)(8676002)(6436002)(41533002);DIR:OUT;SFP:1101;SCL:1;SRVR:HE1PR04MB1449;H:HE1PR04MB1450.eurprd04.prod.outlook.com;FPR:;SPF:None;MLV:ovrnspm;PTR:InfoNoRecords;LANG:en; spamdiagnosticoutput: 1:99 spamdiagnosticmetadata: NSPM Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 X-OriginatorOrg: nxp.com X-MS-Exchange-CrossTenant-originalarrivaltime: 09 Jun 2017 08:26:28.9360 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 686ea1d3-bc2b-4c6f-a92c-d99c5c301635 X-MS-Exchange-Transport-CrossTenantHeadersStamped: HE1PR04MB1449 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from base64 to 8bit by mail.home.local id v598R0Ax000657 Content-Length: 522 Lines: 17 > >I have a look at your patches (http://www.spinics.net/lists/linux-usb/msg157134.html) >and I wonder if power sequence is applicable only on hub node? No, power sequence can be used for any devices which needs to carry out power on before probe. > hub are probed too >late (after ci_ulpi_init). Do you think it is possible to read a power sequence in dts >from ci_ulpi_init? > I think the suitable place for power sequence is at ulpi_of_register, some ULPI PHYs need to carry out power on before reading ID. Peter