Re: [beagleboard] Re: [PATCH v7 1/2] Add driver for Aptina (Micron) mt9p031 sensor.

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



Op 8 jun 2011, om 14:42 heeft javier Martin het volgende geschreven:

> On 8 June 2011 14:39, Guennadi Liakhovetski <g.liakhovetski@xxxxxx> wrote:
>> On Wed, 8 Jun 2011, Koen Kooi wrote:
>> 
>>> 
>>> Op 8 jun 2011, om 13:57 heeft Laurent Pinchart het volgende geschreven:
>>> 
>>>> Hi Javier,
>>>> 
>>>> I'm testing your patch on a 2.6.39 kernel. Here's what I get when loading the
>>>> omap3-isp module.
>>>> 
>>>> root@arago:~# modprobe omap3-isp
>>>> [  159.523681] omap3isp omap3isp: Revision 15.0 found
>>>> [  159.528991] omap-iommu omap-iommu.0: isp: version 1.1
>>>> [  159.875701] omap_i2c omap_i2c.2: Arbitration lost
>>>> [  159.881622] mt9p031 2-0048: Failed to reset the camera
>>>> [  159.887054] omap3isp omap3isp: Failed to power on: -5
>>>> [  159.892425] mt9p031 2-0048: Failed to power on device: -5
>>>> [  159.898956] isp_register_subdev_group: Unable to register subdev mt9p031
>>>> 
>>>> Have you (or anyone else) seen that issue ?
>>> 
>>> I build in both statically to avoid that problem.
>> 
>> I used modules and it worked for me.
> 
> Maybe u-boot version Laurent uses does not enable internal pull-up
> resistors for i2c2 interface.
> You could either use a different u-boot version or attach external
> pull-up resistors to that interface.

http://dominion.thruhere.net/koen/angstrom/beagleboard/2.6.39/MLO
http://dominion.thruhere.net/koen/angstrom/beagleboard/2.6.39/u-boot.bin

The above MLO and uboot enable the pullups and work will all released versions of the beagleboard.

regards,

Koen--
To unsubscribe from this list: send the line "unsubscribe linux-media" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html


[Index of Archives]     [Linux Input]     [Video for Linux]     [Gstreamer Embedded]     [Mplayer Users]     [Linux USB Devel]     [Linux Audio Users]     [Linux Kernel]     [Linux SCSI]     [Yosemite Backpacking]
  Powered by Linux