linux-kernel - Re: [PATCH 0/6] Davinci fbdev driver and enable it for DMx platform

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Message-ID: <51838994.7070805@ti.com>
Date:	Fri, 3 May 2013 15:25:32 +0530
From:	Sekhar Nori <nsekhar@...com>
To:	Prabhakar Lad <prabhakar.csengg@...il.com>
CC:	Laurent Pinchart <laurent.pinchart@...asonboard.com>,
	DLOS <davinci-linux-open-source@...ux.davincidsp.com>,
	LMML <linux-media@...r.kernel.org>,
	LFBDEV <linux-fbdev@...r.kernel.org>,
	LAK <linux-arm-kernel@...ts.infradead.org>,
	LKML <linux-kernel@...r.kernel.org>,
	Mauro Carvalho Chehab <mchehab@...hat.com>,
	Florian Tobias Schandinat <FlorianSchandinat@....de>
Subject: Re: [PATCH 0/6] Davinci fbdev driver and enable it for DMx platform

On 4/26/2013 11:16 AM, Prabhakar Lad wrote:
> Hi Laurent,
> 
> On Thu, Apr 25, 2013 at 2:32 AM, Laurent Pinchart
> <laurent.pinchart@...asonboard.com> wrote:
>> Hi Prabhakar,
>>
>> Thank you for the patch.
>>
>> On Wednesday 24 April 2013 17:30:02 Prabhakar Lad wrote:
>>> From: Lad, Prabhakar <prabhakar.csengg@...il.com>
>>>
>>> This patch series adds an fbdev driver for Texas
>>> Instruments Davinci SoC.The display subsystem consists
>>> of OSD and VENC, with OSD supporting 2 RGb planes and
>>> 2 video planes.
>>> http://focus.ti.com/general/docs/lit/
>>> getliterature.tsp?literatureNumber=sprue37d&fileType=pdf
>>>
>>> A good amount of the OSD and VENC enabling code is
>>> present in the kernel, and this patch series adds the
>>> fbdev interface.
>>>
>>> The fbdev driver exports 4 nodes representing each
>>> plane to the user - from fb0 to fb3.
>>
>> The obvious question is: why not a KMS driver instead ? :-)
>>
> I did go through the KMS model (thanks for pointing to your work and the video)
> and it looks like this would require a fair amount of development, at this point
> of time I would go with the current implementation and revisit on KMS model
> at later point of time.

But I doubt you will be able to sneak a new fbdev driver through. Last
time I heard, Andrew is only taking in fixes not new features.

Thanks,
Sekhar
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