[BUILD BREAK] usb: gadget: fsl_mxc_udc can't compile on current v3.8-rc3

Mehresh Ramneek-B31383 B31383 at freescale.com
Fri Jan 11 21:47:20 EST 2013



> -----Original Message-----
> From: Felipe Balbi [mailto:balbi at ti.com]
> Sent: Friday, January 11, 2013 3:18 PM
> To: Li Yang-R58472
> Cc: balbi at ti.com; Chen Peter-B29397; Mehresh Ramneek-B31383;
> kernel at pengutronix.de; Greg KH; linux-usb at vger.kernel.org; linuxppc-
> dev at lists.ozlabs.org
> Subject: Re: [BUILD BREAK] usb: gadget: fsl_mxc_udc can't compile on
> current v3.8-rc3
> 
> Hi,
> 
> On Fri, Jan 11, 2013 at 09:24:16AM +0000, Li Yang-R58472 wrote:
> >
> >
> > > -----Original Message-----
> > > From: Felipe Balbi [mailto:balbi at ti.com]
> > > Sent: Friday, January 11, 2013 4:41 PM
> > > To: Chen Peter-B29397
> > > Cc: balbi at ti.com; kernel at pengutronix.de; Li Yang-R58472; Greg KH;
> > > linux- usb at vger.kernel.org; linuxppc-dev at lists.ozlabs.org
> > > Subject: Re: [BUILD BREAK] usb: gadget: fsl_mxc_udc can't compile on
> > > current v3.8-rc3
> > >
> > > Hi,
> > >
> > > On Fri, Jan 11, 2013 at 08:35:29AM +0000, Chen Peter-B29397 wrote:
> > > > > > I am working on it, but there are two versions, this one and
> > > chipidea's.
> > > > > >
> > > > > > Anyway, I will send a patch to fix this problem.
> > > > >
> > > > > if you're already using chipidea, then send me a patch removing
> > > > > this driver and focus your effort on chipidea.
> > > > >
> > > > Added Sascha
> > > >
> > > > Now, not all of FSL i.mx USB can move to use chipidea due to some
> > > > platform and USB PHY problem.
> > >
> > > then we need to target fixing those problems and moving to chipidea
> > > completely at some point. There's no reason to duplicate efforts if
> > > we already have a re-usable driver in tree, right ?
> > >
> > > Let's fix this build break and focus on making sure all i.MX
> > > platforms can use chipidea so we can drop fsl udc on next merge
> > > window. That would be a great patchset to see.
> >
> > I do agree that we need move to use the chipidea driver and eventually
> > remove the fsl udc driver, but there were many users of the current
> > driver such as PowerPC and Coldfire platforms besides the i.MX
> > platforms.  The support for them with chipidea driver could also be
> > broken for now.  I would suggest to have a transitional period that
> > both drivers are kept while new development be based on the new
> > driver.
> 
> right, right. That can be done as long as 'transitional period' isn't 20
> years. At least make a plan to remove fsl udc, if it doesn't happen in
> the next 4 merge windows, I will remove it myself to force people to
> reuse other drivers. There is no reason to keep both drivers around.
> 
> > Added Ramneek.  What do you think of the current status for chipidea
> > driver on PowerPC platforms?
> 
> that would be great to know, indeed.
> 
> --
> balbi

As per my info, chipidea drv has never been tested for any ppc platforms we have...
Also not sure how long chipidea will be used for ppc platforms...
Let me get back to you on this

-Ramneek 



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