From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Message-ID: <1525332431.12348.1.camel@suse.com> Subject: Re: [PATCH v5 01/14] dt-bindings: connector: add properties for typec From: Oliver Neukum Date: Thu, 03 May 2018 09:27:11 +0200 In-Reply-To: <1525307094-27402-2-git-send-email-jun.li@nxp.com> References: <1525307094-27402-1-git-send-email-jun.li@nxp.com> <1525307094-27402-2-git-send-email-jun.li@nxp.com> Content-Type: text/plain; charset="UTF-8" Mime-Version: 1.0 Content-Transfer-Encoding: 8bit To: Li Jun , robh+dt@kernel.org, heikki.krogerus@linux.intel.com, gregkh@linuxfoundation.org, linux@roeck-us.net Cc: gsomlo@gmail.com, linux-imx@nxp.com, peter.chen@nxp.com, shufan_lee@richtek.com, a.hajda@samsung.com, cw00.choi@samsung.com, devicetree@vger.kernel.org, linux-usb@vger.kernel.org List-ID: Am Donnerstag, den 03.05.2018, 08:24 +0800 schrieb Li Jun: > +Optional properties for usb-c-connector: > +- power-role: should be one of "source", "sink" or "dual"(DRP) if typec > +  connector has power support. > +- try-power-role: preferred power role if "dual"(DRP) can support Try.SNK > +  or Try.SRC, should be "sink" for Try.SNK or "source" for Try.SRC. > +- data-role: should be one of "host", "device", "dual"(DRD) if typec > +  connector supports USB data. Hi, is this really correct? Can one implement a device that can operate as either DFP or UFP, but not implements the dynamic role switch that a DRP must support? Regards Oliver