Re: [RFC] Move some soc-camera drivers to staging in preparation for removal

["Wu, Songjun" <songjun.wu@atmel.com>]

On 2/23/2016 00:08, Ludovic Desroches wrote:
> On Mon, Feb 22, 2016 at 04:23:54PM +0200, Laurent Pinchart wrote:
>> Hi Guennadi,
>>
>> (CC'ing Ludovic Desroches)
>>
>> On Monday 22 February 2016 14:39:08 Guennadi Liakhovetski wrote:
>>> Hi Laurent,
>>>
>>> On Mon, 22 Feb 2016, Laurent Pinchart wrote:
>>>
>>> [snip]
>>>
>>>> As far as I know Renesas (or at least the kernel upstream team) doesn't
>>>> care. The driver is only used on five SH boards, I'd also say it can be
>>>> removed.
>>> [snip]
>>>
>>>>>>> - atmel-isi: ATMEL Image Sensor Interface (ISI)
>>>>>>>
>>>>>>>    I believe this is still actively maintained. Would someone be
>>>>>>>    willing to convert this? It doesn't look like a complex driver.
>>>>
>>>> That would be nice, I would like to avoid dropping this one.
>>>
>>> Thanks for clarifying the state of the CEU driver. I did say, that I am
>>> fine with dropping soc-camera gradually, and I stay with that. But I see
>>> now, that at least two drivers want to stay active: Atmel ISI and PXA270.
>>> One possibility is of course to make them independent drivers. If people
>>> are prepared to invest work into that - sure, would be great! If we
>>> however decide to keep soc-camera, I could propose the following: IIUC,
>>> the largest problem is sensor drivers, that cannot be reused for other
>>> non-soc-camera bridge drivers. The thing is, out of all the sensor drivers
>>> currently under drivers/media/i2c/soc_camera only a couple are in use on
>>> those active PXA270 and Atmel boards. I could propose the following:
>>>
>>> 1. Remove all bridge drivers, that noone cares about.
>>> 2. If anyone ever needs to use any of soc-camera-associated sensor
>>>     drivers, take them out of soc-camera and _remove_ any soc-camera
>>>     dependencies
>>> 3. If any soc-camera boards will need that specific driver, which in
>>>     itself is already unlikely, we'll have to fix that by teaching
>>>     soc-camera to work with generic sensor drivers!
>>
>> That sounds like a good plan.
>>
>> Ludovic, any chance someone at Atmel could convert the ISI driver ?
>
> I add Songjun to the cc list. I think he has in mind to do this
> conversion.
>
> Songjun, can you confirm?
>
> Full thread here:
> http://thread.gmane.org/gmane.linux.drivers.video-input-infrastructure/99290
>
Laurent, I will take the ISI driver, convert it from soc_camera to V4L2.

> Regards
>
> Ludovic
>