Hi Tomi,
thanks for testing
On Tue, Nov 03, 2020 at 09:19:17AM +0200, Tomi Valkeinen wrote:
> Hi Jacopo,
>
> On 29/10/2020 00:57, Jacopo Mondi wrote:
> > Hi Hugues Tomi and Sam
> >
> > this small series collects Tomi's patch on adjusting htot which has been
> > floating around for some time with a rework of the clock tree based on
> > Hugues' and Sam's work on setting pclk_period. It also address the need to
> > suppport LINK_FREQUENCY control as pointed out by Hugues.
> >
> > I'm sort of happy with the result as I've removed quite some chrun and the clock
> > tree calculation is more linear. All modes work except full-resolution which a
> > bit annoys me, as I can't select it through s_fmt (to be honest I have not
> > investigated that in detail, that's why an RFC).
> >
> > Framerate is better than before, but still off for some combinations:
> > 640x480@30 gives me ~40 FPS, 1920x1080@15 gives me ~7.
> > The other combinations I've tested looks good.
> >
> > Can I have your opinion on these changes and if they help you with your
> > platforms?
> >
> > I've only been able to test YUYV, support for formats with != bpp will need
> > some work most probably, but that was like this before (although iirc Hugues
> > has captured JPEG, right ?)
> >
> > There's a bit more cleanup on top to be done (I've left TODOs around) and
> > probably the HBLANK calculation should be checked to see if it works with the
> > new htot values.
>
> Unfortunately the second patch seems to break capture on AM6 EVM + OV5640. The effect is pretty odd.
> The picture is very dark, with odd vertical lines, but it's still capturing something as I can see a
> correctly shaped shadow of my hand if I wave my hand over the sensor.
This saddens me quite a lot :( The current clock tree programming
procedure is horrid and it has been bugging me for 2 years now :(
Is capture broken in all modes, or have you tested a single one ?
>
> Tomi
>
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