Re: [PATCH 1/4] v4l: vsp1: Implement partition algorithm restrictions

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Hi Laurent, Kieran

> > > Testing SRU-UDS scaling 768x576 - 768x576 - 640x480 in RGB24: fail
> > > Testing SRU-UDS scaling 768x576 - 768x576 - 768x576 in RGB24: pass
> > > Testing SRU-UDS scaling 768x576 - 768x576 - 1024x768 in RGB24: pass
> > > Testing SRU-UDS scaling 768x576 - 1536x1152 - 1280x960 in RGB24: pass
> > > Testing SRU-UDS scaling 768x576 - 1536x1152 - 1536x1152 in RGB24: pass
> > > Testing SRU-UDS scaling 768x576 - 1536x1152 - 2048x1536 in RGB24: pass
> > > Testing UDS-SRU scaling 768x576 - 640x480 - 640x480 in RGB24: pass
> > > Testing UDS-SRU scaling 768x576 - 640x480 - 1280x960 in RGB24: pass
> > > Testing UDS-SRU scaling 768x576 - 768x576 - 768x576 in RGB24: pass
> > > Testing UDS-SRU scaling 768x576 - 768x576 - 1536x1152 in RGB24: pass
> > > Testing UDS-SRU scaling 768x576 - 1024x768 - 1024x768 in RGB24: pass
> > > Testing UDS-SRU scaling 768x576 - 1024x768 - 2048x1536 in RGB24: pass
> > > Testing SRU-UDS scaling 768x576 - 768x576 - 640x480 in YUV444M: fail
> > > Testing SRU-UDS scaling 768x576 - 768x576 - 768x576 in YUV444M: pass
> > > Testing SRU-UDS scaling 768x576 - 768x576 - 1024x768 in YUV444M: pass
> > > Testing SRU-UDS scaling 768x576 - 1536x1152 - 1280x960 in YUV444M: pass
> > > Testing SRU-UDS scaling 768x576 - 1536x1152 - 1536x1152 in YUV444M: pass
> > > Testing SRU-UDS scaling 768x576 - 1536x1152 - 2048x1536 in YUV444M: hangs
> > > Testing UDS-SRU scaling 768x576 - 640x480 - 640x480 in YUV444M: pass
> > > Testing UDS-SRU scaling 768x576 - 640x480 - 1280x960 in YUV444M: fail
> > > Testing UDS-SRU scaling 768x576 - 768x576 - 768x576 in YUV444M: pass
> > > Testing UDS-SRU scaling 768x576 - 768x576 - 1536x1152 in YUV444M: pass
> > > Testing UDS-SRU scaling 768x576 - 1024x768 - 1024x768 in YUV444M: pass
> > > Testing UDS-SRU scaling 768x576 - 1024x768 - 2048x1536 in YUV444M: hangs
> > (snip)
> > > However, from the above tests it looks like the hardware can live with more 
> > > relaxed restrictions than the ones implemented here. I haven't tested all UDS 
> > > scaling ratios, and certainly not under all memory bus load conditions, I 
> > > might thus be too optimistic. Morimoto-san, would it be possible to get more 
> > > information about this from the hardware team, to check whether the above two 
> > > restrictions need to be honoured, or whether they come from an older hardware 
> > > version ?
> > 
> > I asked it to HW team.
> > Please wait

I'm still waiting from HW team's response, but can you check
"32.3.7 Image partition for VSPI processing" on v0.53 datasheet ?
(v0.53 is for ES2.0, but this chapter should be same for ES1.x / ES2.0)
You may / may not find something from here

Best regards
---
Kuninori Morimoto



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