linux-kernel - Re: [PATCH v7 4/5] usb: dwc3: omap: Pass VBUS and ID events transparently

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Message-ID: <871t5ai5ye.fsf@linux.intel.com>
Date:	Tue, 10 May 2016 13:05:13 +0300
From:	Felipe Balbi <balbi@...nel.org>
To:	Roger Quadros <rogerq@...com>
Cc:	tony@...mide.com, Joao.Pinto@...opsys.com,
	sergei.shtylyov@...entembedded.com, peter.chen@...escale.com,
	jun.li@...escale.com, grygorii.strashko@...com,
	yoshihiro.shimoda.uh@...esas.com, nsekhar@...com, b-liu@...com,
	linux-usb@...r.kernel.org, linux-omap@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH v7 4/5] usb: dwc3: omap: Pass VBUS and ID events transparently


Hi,

Roger Quadros <rogerq@...com> writes:
> On 10/05/16 12:55, Felipe Balbi wrote:
>> 
>> Hi,
>> 
>> Roger Quadros <rogerq@...com> writes:
>>> Don't make any decisions regarding VBUS session based on ID
>>> status. That is best left to the OTG core.
>>>
>>> Pass ID and VBUS events independent of each other so that OTG
>>> core knows exactly what to do.
>>>
>>> This makes dual-role with extcon work with OTG irq on OMAP platforms.
>>>
>>> Signed-off-by: Roger Quadros <rogerq@...com>
>> 
>> I have a feeling this will regress OMAP5432 uEVM. Did you test with that
>> board ?
>> 
>
> Yes. Any specific test case you would like me to test?
> For now I'm just doing enumeration with g_zero.

IIRC OMAP5 uEVM didn't have separate VBUS and ID GPIOs. How are you
handling that case ?

-- 
balbi

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