On Mon, Jan 6, 2014 at 11:11 AM, Julien BERAUD <julien.beraud@xxxxxxxxxx> wrote: > > Le 03/01/2014 12:30, Enrico a écrit : >> >> On Wed, Dec 18, 2013 at 11:09 AM, Enrico <ebutera@xxxxxxxxxxxxxxxx> wrote: >>> >>> On Tue, Dec 17, 2013 at 2:11 PM, Florian Vaussard >>> <florian.vaussard@xxxxxxx> wrote: >>>> >>>> So I converted the iommu to DT (patches just sent), used pdata quirks >>>> for the isp / mtv9032 data, added a few patches from other people >>>> (mainly clk to fix a crash when deferring the omap3isp probe), and a few >>>> small hacks. I get a 3.13-rc3 (+ board-removal part from Tony Lindgren) >>>> to boot on DT with a working MT9V032 camera. The missing part is the DT >>>> binding for the omap3isp, but I guess that we will have to wait a bit >>>> more for this. >>>> >>>> If you want to test, I have a development tree here [1]. Any feedback is >>>> welcome. >>>> >>>> Cheers, >>>> >>>> Florian >>>> >>>> [1] https://github.com/vaussard/linux/commits/overo-for-3.14/iommu/dt >>> >>> Thanks Florian, >>> >>> i will report what i get with my setup. >> >> And here i am. >> >> I can confirm it works, video source is tvp5150 (with platform data in >> pdata-quirks.c) in bt656 mode. >> >> Laurent, i used the two bt656 patches from your omap3isp/bt656 tree so >> if you want to push it you can add a Tested-by me. >> >> There is only one problem, but it's unrelated to your DT work. >> >> It's an old problem (see for example [1] and [2]), seen by other >> people too and it seems it's still there. >> Basically if i capture with yavta while the system is idle then it >> just waits without getting any frame. >> If i add some cpu load (usually i do a "cat /dev/zero" in a ssh >> terminal) it starts capturing correctly. >> >> The strange thing is that i do get isp interrupts in the idle case, so >> i don't know why they don't "propagate" to yavta. >> >> Any hints on how to debug this? >> >> Enrico >> >> [1]: https://linuxtv.org/patch/7836/ >> [2]: >> https://www.mail-archive.com/linux-media@xxxxxxxxxxxxxxx/msg44923.html > > I have had what looked a lot like these problems before and it was due to a > wrong configuration of the ccdc cropping regarding to the blanking. Could > you send me the configuration of the pipeline that you apply with media-ctl, > just in case this is the same problem. i'm using: media-ctl -r -l '"tvp5150 2-005c":0->"OMAP3 ISP CCDC":0[1], "OMAP3 ISP CCDC":1->"OMAP3 ISP CCDC output":0[1]' media-ctl --set-format '"tvp5150 2-005c":0 [UYVY 720x625]' And then capture with yavta -s 720x625 (or 720x576, can't remember right now). Thanks, Enrico -- 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
