linux-kernel - Re: [PATCH] ARM: dts: imx5: Add dts files for USB armory.

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Message-ID: <CAOMZO5B5bAXhvdv_MUBL9DoMvfv0p25B6eGMLbO1pJuK8HFLVA@mail.gmail.com>
Date:	Wed, 29 Apr 2015 23:22:11 -0300
From:	Fabio Estevam <festevam@...il.com>
To:	Peter Chen <peter.chen@...escale.com>
Cc:	Shawn Guo <shawn.guo@...aro.org>,
	Vagrant Cascadian <vagrant@...ian.org>,
	"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
	Rob Herring <robh+dt@...nel.org>,
	Pawel Moll <pawel.moll@....com>,
	Mark Rutland <mark.rutland@....com>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Kumar Gala <galak@...eaurora.org>,
	Russell King <linux@....linux.org.uk>,
	Sascha Hauer <kernel@...gutronix.de>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	linux-kernel <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] ARM: dts: imx5: Add dts files for USB armory.

Hi Peter,

On Tue, Apr 28, 2015 at 5:20 AM, Peter Chen <peter.chen@...escale.com> wrote:

> Current chipidea usb driver supports role switch function well, if you
> have a gpio or id pin for it.

On mx6 we are able to perform OTG role-switch funtion as they have the
OTG_ID pins.

We are talking about mx53 here, which does not have such OTG_ID pins,
so not sure how they can perform role-switch in run-time?

Regards,

Fabio Estevam
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