Re: OMAP3ISP won't start

[Gary Thomas <gary@mlbassoc.com>]

On 2012-04-02 06:32, Enrico wrote:
> On Mon, Apr 2, 2012 at 2:24 PM, Gary Thomas<gary@mlbassoc.com>  wrote:
>> Just to be clear - I did have to make a few patches to both the
>> TVP5150 driver and CCDC part of OMAP3ISP as some of the BT656
>> support is still not in Laurent's tree.  I'll send patches, etc,
>> once I get it working, but as mentioned above, at least at the
>> register level, these are set up the same as in my working tree.
>
> What patches did you add on top of Laurent tree?
>
> I had a look some days ago and for example it's missing the right
> setup for VD0/VD1 (no VD1 and VD0 set to half height), this could be
> the cause of a not working isp. You can check if you get interrupts
> from the isp (/proc/interrupts).

Getting lots of interrupts:
  24:       3376      INTC  omap-iommu.0, OMAP3 ISP

>
> Another thing that is missing is the logic in the irq handler that
> wait for a complete frame before calling next video buffer (or
> something like that).

The items you mention are just what I merged from my previous kernel.
My changes are still pretty rough but I can send them to you if you'd
like.

-- 
------------------------------------------------------------
Gary Thomas                 |  Consulting for the
MLB Associates              |    Embedded world
------------------------------------------------------------