From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751356AbaIJMDo (ORCPT ); Wed, 10 Sep 2014 08:03:44 -0400 Received: from softlayer.compulab.co.il ([50.23.254.55]:33081 "EHLO compulab.co.il" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751092AbaIJMDm (ORCPT ); Wed, 10 Sep 2014 08:03:42 -0400 Message-ID: <54103E15.3090406@compulab.co.il> Date: Wed, 10 Sep 2014 15:03:33 +0300 From: Dmitry Lifshitz User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20130329 Thunderbird/17.0.5 MIME-Version: 1.0 To: balbi@ti.com CC: Roger Quadros , Kishon Vijay Abraham I , bcousson@baylibre.com, tony@atomide.com, rob.herring@calxeda.com, pawel.moll@arm.com, mark.rutland@arm.com, swarren@wwwdotorg.org, ijc+devicetree@hellion.org.uk, linux@arm.linux.org.uk, linux-omap@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, George Cherian Subject: Re: [PATCH 2/2] ARM: dts: omap5: Add dr_mode for dwc3 References: <1381402195-29257-1-git-send-email-kishon@ti.com> <1381402195-29257-2-git-send-email-kishon@ti.com> <52580F34.8030809@ti.com> <20140416161619.GH28035@saruman.home> <540D9449.3090008@compulab.co.il> <20140908132403.GA22409@saruman.home> In-Reply-To: <20140908132403.GA22409@saruman.home> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-AntiAbuse: This header was added to track abuse, please include it with any abuse report X-AntiAbuse: Primary Hostname - softlayer.compulab.co.il X-AntiAbuse: Original Domain - vger.kernel.org X-AntiAbuse: Originator/Caller UID/GID - [47 12] / [47 12] X-AntiAbuse: Sender Address Domain - compulab.co.il X-Get-Message-Sender-Via: softlayer.compulab.co.il: acl_c_relayhosts_text_entry: lifshitz@compulab.co.il|compulab.co.il Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi, On 09/08/2014 04:24 PM, Felipe Balbi wrote: > Hi, > > On Mon, Sep 08, 2014 at 02:34:33PM +0300, Dmitry Lifshitz wrote: >> Hi Felipe, Roger >> >> On 04/16/2014 07:16 PM, Felipe Balbi wrote: >>> On Fri, Oct 11, 2013 at 05:46:12PM +0300, Roger Quadros wrote: >>>> Hi, >>>> >>>> On 10/10/2013 01:49 PM, Kishon Vijay Abraham I wrote: >>>>> From: George Cherian >>>>> >>>>> Added dr_mode property in dwc3 and set its default mode to device. >>>> >>>> If there is a specific reason why this is not set to "otg", we need >>>> to explain it here. >>>> >>>> AFAIK the port is meant to be used as OTG port. >>> >>> we still don't have the workaround for dual role ports, I've been >>> working on it but still need to retest and make sure it's working fine >>> before merging upstream. >>> >> >> >> Does the OTG port suppose to work with OMAP5? I mean role switching >> mechanism? >> >> I'm testing kernel v3.16 with OMAP5 based board (CM-T54). >> >> If I set CONFIG_USB_DWC3_DUAL_ROLE, than nothing is going on when I plug >> some device/host cable into micro USB3.0 port (VBUS/ID detection with extcon >> events works fine). > > Dual role does not work. We allow the driver to the built with both Host > and Peripheral support because some platforms have more than one port > and building the driver with dual role allows us to make one port host > and one peripheral. > Please, can you provide some detail about platforms with several ports. How do that ports are connected to DWC3? Thanks, Dmitry