Hi Enrico, On Monday 28 July 2014 15:18:04 Enrico wrote: > On Mon, Jul 28, 2014 at 12:29 PM, Laurent Pinchart wrote: > > On Monday 28 July 2014 10:30:17 Enrico wrote: > >> On Mon, Jul 28, 2014 at 9:20 AM, Sakari Ailus wrote: > >>> On Thu, Jul 24, 2014 at 05:57:30PM +0200, Enrico wrote: > >>>> On Thu, Jul 24, 2014 at 5:34 PM, Michael Dietschi wrote: > >>>>> Hello, > >>>>> > >>>>> I have built a Poky image for Gumstix Overo and added support for a > >>>>> TVP5151 module like described here http://www.sleepyrobot.com/?p=253. > >>>>> It does work well with an Overo board which hosts an OMAP3530 SoC. > >>>>> But when I try with an Overo hosting a DM3730 it does not work: yavta > >>>>> just seems to wait forever :( > >>>>> > >>>>> I did track it down to the point that IRQ0STATUS_CCDC_VD0_IRQ seems > >>>>> never be set but always IRQ0STATUS_CCDC_VD1_IRQ > >>> > >>> VD1 takes place in 2/3 of the frame, and VD0 in the beginning of the > >>> last line. You could check perhaps if you do get VD0 if you set it to > >>> take place on the previous line (i.e. the register value being height - > >>> 3; please see ccdc_configure() in ispccdc.c). > >>> > >>> I have to admit I haven't used the parallel interface so perhaps others > >>> could have more insightful comments on how to debug this. > >>> > >>>>> Can someone please give me a hint? > >>>> > >>>> It's strange that you get the vd1_irq because it should not be set by > >>>> the driver and never trigger... > >>> > >>> Both VD0 and VD1 are used by the omap3isp driver, but in different > >>> points of the frame. > >> > >> Hi Sakari, > >> > >> that's true in "normal" mode, but with bt656 patches VD1 is not used. > > > > That's not correct, VD1 is used in both modes. In BT.656 mode VD1 is even > > used to increment the frame counter in place of the HS_VS interrupt. > > ...in your new patches. But sleepyrobot's are the old ones and i bet > Michael is using those patches. You're right. Maybe that's the first problem to be fixed though ;-) Michael, could you try using the "official" (and under development) BT.656 support code for the OMAP3 ISP driver ? I've just pushed the branch to git://linuxtv.org/pinchartl/media.git omap3isp/bt656 -- Regards, Laurent Pinchart -- 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
