Merge pull request #2142 from andelf/fix/ws2812-led-count

Fix WS2812 with nled=1

litex/soc/cores/led.py

@@ -152,7 +152,7 @@ def __init__(self, pad, nleds, sys_clk_freq, bus_mastering=False, bus_base=None,
 
 
         # Internal Signals.
-        led_count  = Signal(max=nleds)
+        led_count  = Signal(max=max(nleds, 2))
         led_data   = Signal(24)
         xfer_start = Signal()
         xfer_done  = Signal()