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Re: soc-camera driver for i.MX27




On Mon, Aug 10, 2009 at 3:25 AM, Sascha Hauer<sha@xxxxxxxxxxxxxx> wrote:
> Hi,
>
> On Mon, Aug 10, 2009 at 08:59:23AM +0200, javier Martin wrote:
>> Dear Derek,
>>
>> >> We have a driver for the phyCORE-i.MX27 board:
>> >> http://git.pengutronix.de/?p=phytec/linux-2.6.git;a=blob;f=drivers/media/video/mx27_camera.c;h=9e9f4426c3db890e6fc13130e047c65c073aa0b4;hb=refs/heads/phytec-master
>>
>> Thank you for the pointer to the patch.
>>
>> > I have just used this driver to interface to a soc imager (Aptina
>> > mt9p031) on the phyCORE-i.MX27 board. It works for acquiring a 640x480
>> > video stream quite reliably. I am currently working on getting it to
>> > be able to capture a full image frame (5MB) as well as various image
>> > sizes in between. I am running into out of memory issues with the
>> > dma_alloc_coherent() and not sure what the solution is yet.
>> >
>>
>> Maybe you are requesting too much contiguous memory. I don't remember
>> where that could be changed.
>
> It's CONSISTENT_DMA_SIZE.
>
That did the trick.
Thanks, Derek


> Sascha
>
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