I also put the leds under the gpio controller for the Warp. It is then
very clear which gpio controller the leds belong to.
Putting them at the top level does not associate the leds with the
correct gpio controller.
Warning: I am *not* using the of gpio led driver, but I hope to move to
it once the dust settles and drop the current Warp specific driver ;)
Cheers,
Sean
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