Code size report:

   bare-arm:    +0 +0.000% 
minimal x86:    +0 +0.000% 
   unix x64:    +0 +0.000% standard
      stm32:    +0 +0.000% PYBV10
     mimxrt:    +0 +0.000% TEENSY40
        rp2:   +16 +0.002% RPI_PICO_W
       samd:    +0 +0.000% ADAFRUIT_ITSYBITSY_M4_EXPRESS
  qemu rv32:    +0 +0.000% VIRT_RV32

Turns out the reason the 64-bit versions didn't work is because you need to explicitly typecast to a uint64_t. Updated to use mask functions since they should be faster than gpio_put()

This slipped under my radar since we use our own PIO-based WS281X driver, but we might have a good excuse to give this a try and get some feedback here.

Edit: Hmm so far no dice. Tested before these patches and our PIO WS281X driver works, NeoPixel did not. Tested with these patches applied, still not working. I'm going to have to grab my scope.

Edit: sigh too many feature branches, too much chaos!

Edit: Can confirm these fixes work for me, driving seven WS281X pixels from pin 33.