Re: omap3isp: no pixel rate control in subdev

[Laurent Pinchart <laurent.pinchart@ideasonboard.com>]

Hi,

On Tuesday 09 October 2012 09:06:04 P Jackson wrote:
> From: Sakari Ailus <sakari.ailus@iki.fi>
> Sent: Monday, 8 October 2012, 23:33
> On Sat, Oct 06, 2012 at 02:47:44PM +0100, P Jackson wrote:
> > I'm trying to get an mt9t001 sensor board working on a Gumstix Overo board
> > using the latest omap3isp-omap3isp-stable branch from the
> > linuxtv.org/media.git repository.
> > 
> > When I 'modprobe omap3-isp' I see:
> > 
> > Linux media interface: v0.10
> > Linux video capture interface: v2.00
> > omap3isp omap3isp: Revision 15.0 found
> > omap-iommu omap-iommu.0: isp: version 1.1
> > mt9t001 3-005d: Probing MT9T001 at address 0x5d
> > mt9t001 3-005d: MT9T001 detected at address 0x5d
> > 
> > I then do:
> > 
> > media-ctl -r
> > media-ctl -l '"mt9t001 3-005d":0->"OMAP3 ISP CCDC":0[1]'
> > media-ctl -l '"OMAP3 ISP CCDC":1->"OMAP3 ISP CCDC output":0[1]'
> > media-ctl -V '"mt9t001 3-005d":0 [SGRBG10 2048x1536]'
> > media-ctl -V '"OMAP3 ISP CCDC":1 [SGRBG10 2048x1536]'
> > 
> > Followed by:
> > 
> > yavta -p -f SGRBG10 -s 2048x1536 -n 4 --capture=1 /dev/video2 file=m.bin
> > 
> > 
> > For which I get:
> > 
> > Device /dev/video2 opened.
> > Device `OMAP3 ISP CCDC output' on `media' is a video capture device.
> > Video format set: SGRBG10 (30314142) 2048x1536 (stride 4096) buffer size
> > 6291456 Video format: SGRBG10 (30314142) 2048x1536 (stride 4096) buffer
> > size 6291456 4 buffers requested.
> > length: 6291456 offset: 0
> > Buffer 0 mapped at address 0x40272000.
> > length: 6291456 offset: 6291456
> > Buffer 1 mapped at address 0x4096b000.
> > length: 6291456 offset: 12582912
> > Buffer 2 mapped at address 0x4102f000.
> > length: 6291456 offset: 18874368
> > Buffer 3 mapped at address 0x416ac000.
> > Press enter to start capture
> > 
> > After pressing enter I get:
> > 
> > omap3isp omap3isp: no pixel rate control in subdev mt9t001 3-005d
> > Unable to start streaming: Invalid argument (22).
> 
> Really?
> 
> Could you check if you have this patch in your tree?
> 
> ---
> commit 0bc77f3f06fcf2ca7b7fad782d70926cd4d235f1
> Author: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
> Date:   Wed May 9 09:55:57 2012 -0300
> 
>     [media] mt9t001: Implement V4L2_CID_PIXEL_RATE control
>    
>     The pixel rate control is required by the OMAP3 ISP driver and should be
> implemented by all media controller-compatible sensor drivers. 
>     Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
>     Signed-off-by: Sakari Ailus <sakari.ailus@iki.fi>
>     Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
> ---
> 
> I have checked my tree and cannot find that patch.

You should then upgrade to v3.6 or backport the patch to your kernel.

-- 
Regards,

Laurent Pinchart