[PATCH] drm: adv7511: really enable interrupts for EDID detection

[Wolfram Sang]

> > This has been tackled as well now. The clock for the GPIO controller was
> > off, so no interrupt was passed through.
> 
> Thanks a lot for your efforts! When you have time, can you please show
> me the patch that fixes that GPIO interrupt problem? I'm asking
> because I may have ran into a similar issue on Gose or Alt.

For Koelsch, this simply meant I reverted Geert's clocks-off patch. But
there is a fundamental problem below: GPIO interrupts described with the
"interrupts" property in DT do not get the underlying GPIO requested.
And if noone else is using the GPIO block, its clock may be turned off.

I have an idea how to fix it, need to check priorities of the other
tasks, though.

BTW, the continous EDID read test on your board is currently at >360000
successful reads, a not a single failure :)

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