From mboxrd@z Thu Jan 1 00:00:00 1970 From: Peter Chen Subject: Re: [RFC/PATCH] usb: misc: Add a driver for TC7USB40MU Date: Sat, 17 Sep 2016 08:20:55 +0800 Message-ID: <20160917002055.GA10392@b29397-desktop> References: <20160914014246.31847-1-stephen.boyd@linaro.org> <20160914033200.GE30760@b29397-desktop> <147383270635.1464.10706917860873291816@sboyd-linaro> <20160914080321.GA21674@b29397-desktop> <147384270449.13546.495288874027868435@sboyd-linaro> <20160915090158.GB6919@b29397-desktop> <147398859894.4997.6486248242638696855@sboyd-linaro> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: <147398859894.4997.6486248242638696855@sboyd-linaro> Sender: linux-arm-msm-owner@vger.kernel.org To: Stephen Boyd Cc: Greg Kroah-Hartman , linux-arm-kernel@lists.infradead.org, linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org, robh+dt@kernel.org, MyungJoo Ham , Chanwoo Choi , devicetree@vger.kernel.org List-Id: devicetree@vger.kernel.org On Thu, Sep 15, 2016 at 06:16:38PM -0700, Stephen Boyd wrote: > > > For #3, it is not the > > use case for this design. #3 is usually used for the single port which > > needs to support switching role on the fly without disconnection. > > So, you may only need to consider #2, you can't use extcon-usb-gpio.c > > directly since you need to set one gpio to mux the dp/dm, Baolu Lu had > > USB MUX patch set before which may satisfy your requirement. [1] > > Ok. Did the usb mux patches go anywhere? It seemed to get tangled up in > DRD framework and I haven't been following along. I'll look into these > patches more. DRD framework is denied by Felipe due to only one user can be benefit from it (chipidea OTG), I don't know the further status of USB MUX, maybe you can ask for it. -- Best Regards, Peter Chen