linux-kernel - RE: [PATCH 0/3] UCC TDM driver for MPC83xx platforms

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Date:	Tue, 15 Jan 2008 17:35:39 +0530
From:	"Aggrwal Poonam" <Poonam.Aggrwal@...escale.com>
To:	"Kumar Gala" <galak@...nel.crashing.org>,
	"Andrew Morton" <akpm@...ux-foundation.org>
Cc:	"Phillips Kim" <Kim.Phillips@...escale.com>,
	<sfr@...b.auug.org.au>, <rubini@...ion.unipv.it>,
	<linux-ppcdev@...abs.kernel.org>, <netdev@...r.kernel.org>,
	<linux-kernel@...r.kernel.org>,
	"Barkowski Michael" <Michael.Barkowski@...escale.com>,
	"Kalra Ashish" <ashish.kalra@...escale.com>,
	"Cutler Richard" <Rich.Cutler@...escale.com>,
	"Suresh PV" <pala@...escale.com>
Subject: RE: [PATCH 0/3] UCC TDM driver for MPC83xx platforms

Thanks Kumar/Morton/Kim

I shall make a small paragraph which describes the TDM driver
architecture and the interfaces it exposes.

As far as 8315 TDM is concerned it is a non QE driver and quite
different from this except for the functionality and external interface
it exposes.

Right now TDM is not a full-fledged bus driver which probably can be
done may be very similar to SPI.

Please give your suggestions on this.

With Regards
Poonam 

-----Original Message-----
From: Kumar Gala [mailto:galak@...nel.crashing.org] 
Sent: Tuesday, January 15, 2008 9:01 AM
To: Andrew Morton
Cc: Phillips Kim; Aggrwal Poonam; sfr@...b.auug.org.au;
rubini@...ion.unipv.it; linux-ppcdev@...abs.kernel.org;
netdev@...r.kernel.org; linux-kernel@...r.kernel.org; Barkowski Michael;
Kalra Ashish; Cutler Richard
Subject: Re: [PATCH 0/3] UCC TDM driver for MPC83xx platforms

On Jan 14, 2008, at 3:15 PM, Andrew Morton wrote:

> On Mon, 14 Jan 2008 12:00:51 -0600
> Kim Phillips <kim.phillips@...escale.com> wrote:
>
>> On Thu, 10 Jan 2008 21:41:20 -0700
>> "Aggrwal Poonam" <Poonam.Aggrwal@...escale.com> wrote:
>>
>>> Hello  All
>>>
>>> I am waiting for more feedback on the patches.
>>>
>>> If there are no objections please consider them for 2.6.25.
>>>
>> if this isn't going to go through Alessandro Rubini/misc drivers, can

>> it go through the akpm/mm tree?
>>
>
> That would work.  But it might be more appropriate to go Kumar-
> >paulus->Linus.

I'm ok w/taking the arch/powerpc bits, but I"m a bit concerned about  
the driver itself.  I'm wondering if we need a TDM framework in the  
kernel.

I guess if Poonam could possibly describe how this driver is actually  
used that would be helpful.  I see we have 8315 with a discrete TDM  
block and I'm guessing 82xx/85xx based CPM parts of some form of TDM  
as well.

- k
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