driver/staging/media/lirc/lirc_gpio.c : blaster not working properly

[damien7851]

HI,

I have tested lirc_gpio driver in blast mode on cubietruck.
It emit correct code but a half of the frequency required.
I think that function udelay can't produce correct delay with frequency scalling and or dual core cpu.
this function use loop per jiffie calculated at boot and is busy waiting.
in case of continuous emission cpu is blocked.
I plan to use pwm output in order to replace sofcarrier but pwm lib is old and difficult to use.
furthermore delay management remains critical.