Current	Where	What happens

2200 mA BAT	BAT-SYS current limit (NoPower default)
1800 mA	BAT	Maximum discharge current of GTA01 battery
1600 mA	BAT	BAT-SYS current limit (set by u-boot)
1200 mA	BAT	Quick charging current of GTA01 battery
1000 mA	USB	Maximum current the Neo can draw from the adapter
 600 mA	BAT	Standard charge current of GTA01 battery
 510 mA	DOWN1	DOWN1 (CORE_1V3) startup limit (set by u-boot)
 510 mA	DOWN2	DOWN2 (IO_1V8) startup limit (set by u-boot)
 500 mA	USB	Maximum USB current (if upstream allows it; Standby default)
 500 mA	LED	Maximum backlight current (OCP, set by u-boot)
 400 mA	AUTO	AUTO (IO_3V3) startup limit (Standby default and set by u-boot)
 390 mA	DOWN1	DOWN1 (CORE_1V3) startup limit (Standby default)
 390 mA	DOWN2	DOWN2 (IO_1V8) startup limit (Standby default)
 200 mA	HCLDO	Maximum HXLDO output (hardware limitation)
 150 mA	LDOx	Maximum LDO4/5 output (hardware limitation)
 100 mA	USB	Default USB current (available without asking upstream)
  98 mA	BAT	Pre-charge current limit (set by u-boot)
  98 mA	BAT	"Fast charge" current limit while in wait_for_power
  50 mA	LDOx	Maximum LDO1/2/3/6 output (hardware limitation)
  13 mA	LED	LED current (set by u-boot) (*)
  200uA BUB	Backup battery charge current (set by u-boot)
   50uA BUB	Backup battery charge current (NoPower default)
   0 mA	BAT	Pre-charge current limit (NoPower default)
   0 mA	BAT	Fast charge current limit (NoPower default)

(*) I hope I got this one right:
    Rsense = 42.2 Ohm (R1763)
    led_out = 0x2f
    Vledfb = (e(led_out/20)-1)/(e(63/20)-1)*1.25V = 0.531V
    Iled = Vledfb/Rsense