RE: YUV rotation support for DSS2 - 2.6.29 [WAS Re: Hello Tomi Valkeinen, I have some questions about dss2 driver.]

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> -----Original Message-----
> From: plasmaroo@xxxxxxxxx [mailto:plasmaroo@xxxxxxxxx] On Behalf Of Tim Yamin
> Sent: Tuesday, April 14, 2009 2:30 AM
> To: Shah, Hardik
> Cc: gregoire@xxxxxxxxxx; tomi.valkeinen@xxxxxxxxx; linux-omap@xxxxxxxxxxxxxxx;
> beagleboard@xxxxxxxxxxxxxxxx
> Subject: Re: YUV rotation support for DSS2 - 2.6.29 [WAS Re: Hello Tomi
> Valkeinen, I have some questions about dss2 driver.]
> 
> Hi Hardik,
> 
> Thanks for fixing up the patch. I can confirm that YUV rotation is
> fine and patches are ready to be merged -- although the attached fix
> is needed as well for the userspace layer to know the correct row
> strides when writing YUV to the framebuffer.
> 
> I'm still having VID1_FIFO_UNDERFLOW errors when I try to play rotated
> video on plane 1 and plane 0 is rotated as well. Do you have any ideas
> how to debug this further?
[Shah, Hardik] Hi Tim,
Try to increase the pixel clock to functional clock ratio to 6 or 8.  This may help as you are getting under run errors.

Thanks,
Hardik 
> 
> Thanks,
> 
> Tim
> 
> > Hi Tomi,
> > If YUV rotation with frame buffer passes can you please review the patch and
> merge it to your latest.
> >
> > Regards,
> > Hardik
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