linux-kernel - Re: [PATCH] usb: dwc3: core: continue probe even if usb3 phy is not available

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Date:	Fri, 28 Jun 2013 22:06:01 +0200
From:	Michael Grzeschik <mgr@...gutronix.de>
To:	Felipe Balbi <balbi@...com>
Cc:	Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
	George Cherian <george.cherian@...com>,
	linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org,
	gregkh@...uxfoundation.org, linux-omap@...r.kernel.org,
	Kishon Vijay Abraham I <kishon@...com>,
	Alan Stern <stern@...land.harvard.edu>
Subject: Re: [PATCH] usb: dwc3: core: continue probe even if usb3 phy is
 not available

On Fri, Jun 28, 2013 at 09:00:00PM +0300, Felipe Balbi wrote:
> Hi,
> 
> On Thu, Jun 27, 2013 at 10:30:33AM +0300, Felipe Balbi wrote:
> > Hi,
> > 
> > On Thu, Jun 27, 2013 at 09:24:08AM +0200, Michael Grzeschik wrote:
> > > > > > > right, but in DT you will define both instances and each instance will
> > > > > > > have a seaparate snps,maximum_speed attribute :-)
> > > > > > >
> > > > > > > I'm now considering if we should make maximum_speed a generic attribute,
> > > > > > > Kishon ? Alex ? Alan ?
> > > > > > >
> > > > > > > anyone else needs such thing ?
> > > > > > 
> > > > > > We have a force-full-speed attibute for chipidea on the way. This
> > > > > > maximum_speed looks like a more generic alternative. Michael, what say
> > > > > > you?
> > > > > 
> > > > > The maximum_speed attribute sounds more reasonable. I will change my
> > > > > patch to it.
> > > > 
> > > > thanks, perhaps we can add a generic helper in udc-core or usb-common ?
> > > 
> > > As this function is not only udc specific, this should go into usb-common.
> > > But right, we should go with a helper here. I will write one in addition
> > > to my full-speed patch as first user of it.
> > 
> > alright, thanks :-)
> 
> Michael, if you need any help with patching in maximum_speed attribute,
> let me know as I have some time to work on that part.

Feel free to begin with anything. I am currently short on time.
Do you need some pointers?

Thanks,
Michael

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